( 59 ) 


XL On the Lamellicorn Beetles which possess exserted 
Mandibles and Labrum, and \ O-join ted Antennce . Being 
a Supplement to a Memoir published in the Fourth Volume 
of the Transactions of the Entomological Society. By 
J. O. Westwood, Esq., F.L.S., &c. 

[Read 7th June, 1852.] 

During the ten years which have elapsed since ray paper upon 
those genera of Lamellicorn beetles which agree in possessing 
exserted mandibles and labrum, and 10-jointed antennae, was pre¬ 
sented to the Entomological Society, I have neglected no oppor¬ 
tunity of searching for any additional allied types of form not 
contained in that communication, and have now the pleasure of 
laying before the Society descriptions and figures of several new 
genera and species by way of supplement to my former memoir. 

With respect to the distribution of the Lamellicorn insects into 
families, a highly important modification of the views of Latreille 
and MacLeay has been published by the late Dr. Erichson, in his 
work upon the Coleoptera of Germany (Naturgeschichte der In- 
secten Deutschlands, pp. 563, 717). We here find the Lamelli- 
cornia (including the Lucanidae ) divided into two primary groups. 
The first (corresponding with MaeLeay’s Thaler ophaga, with the 
addition of the Dynaslidce and the exclusion of the Glaphyridce ) 
named 


Sc ARABLE IDES PLEUROSTICTI. 

(Ligula mento connata. Spiracula abdominalia 2 —6 in seg- 
mentorum ventralium parte dorsali sita, septimum liberum. 
Segmentum penultimum dorsale ventraleque connata. Larvae 
maxillarum malis connatis)— 

And containing the families Dynastidce, Cetoniidce, Rutelidce , 
and Melolonthidce (with the Anoplognathidce ). 

The second primary division is named 

Scarab abides laparosticti. 

(Ligula a mento discreta. Spiracula abdominalia inter segmenta 
ventralia dorsaliaque sita, omnia ab elytris obtecta. Larvae 
maxillarum malis discretis.) 

It will be at once perceived that the three characters upon 
which these divisions are founded involve important physiological 


60 


Mr. J. O. Westwood on 


considerations, and are therefore entitled to more weight than 
merely artificial characters,—such as the number of joints in the 
antennae or the number of spines on the tibiae. The separation 
or junction of the ligula (or labium) with the mentum of the 
perfect insect, as well as the separate or connate condition of the 
lobes of the maxillae of the larvae, are of course intimately con¬ 
nected with the nature of the food of the insect, whilst the posi¬ 
tion of the spiracles of the abdomen in the imago intimates cor¬ 
responding variations in the nature of the residence or relative 
exposure to the air of themerfect insect. 

The Scarabceides laparosticti are divided into two groups, cor¬ 
responding with the remaining families of the Linnaean Searabcei 
and the Linnaean Lucanu* 

The following is Erichson’s plan of distribution of the Seara- 
baeideous portion of the Laparosticti: — 

A. Abdomen with six ventral semisegments. 
ct. Epimera of the metathorax free. 

I. Glaphyrid,®. Epimera metatlioracis libera. Antennae 
10 vel 9 articulatse. Abdomen segment's ventralibus 6 liberis. 

Genera Glapkyrns , Amphicoma , &c., with Aclopus, Er., and the 
remarkable Australian genus Phaenognatha of Hope, described 
and figured in the fourth volume of our Transactions, p. 113, 
pi. VI. fig. 5, as forming a natural transition to the Hy bos or idee.-f 

II. Hybosorid.e. Die fiililer 10-gliedrig. Die bauch-halbringe 
mit Ausnahme des letzten, mit einander fast verwachsen. 

Genera 1. Hybosorus, MacLeay. 

2. Silphodes, Westw., Trans. Ent. Soc. iv. 160; Atimus , 

Dej.; Phceochrus , Lap.J 

3. Coilodes, Westw. Trans. Ent. Soc. iv. 163.§ 

4. Dicracodon , Erichson ; j| Clicetodus basalis , Westw. 

Trans. Ent. Soc. iv. 166. 

* Notwithstanding the relaiions involved in the employment of Erichson’s 
primary characters, I cannot but think that the views of Linnaeus and Latreille, in 
dividing the Lamellicorns into two groups, Scurubans and Lucanus, are to be pre¬ 
ferred to those of Erichson. 

t Phcenognatha appears to me to be much more nearly related to Pachypus, 
which Dr. Erichson places in the family Melolonthida . 

t Erichson adopts Laporte’s name for this genus. The names however of 
genera, so slovenly characterized as not to be recognizable, are no better than MS. 
or catalogue names, and must give way to names attached to correct detailed de¬ 
scriptions and full accompanying figures. 

$ Erichson hypercritically has altered this name to Coelodes. 

|| The type of this genus is the insect which 1 described under the name of 


Lamellicorn Beetles. 


61 


5. Apalomychus ,* Westw. Trans. Ent. Soc. iv. 168 

( Tricliops . Dej. Cat.), 

III. Geotrupini. Epimera metathoracis libera. Antennce 
11-articulatae. Abdomen segmentis ventralibus 6. 

Genera Geotrupes , Lethrns , Odontceus , Bolboceras , Athyreus. 

Obs.—Ample details of the generic structure of the last three 
genera are given in the plates illustrating my three papers on the 
Athyrei and Bolbocerata in the twentieth and twenty-first volumes 
of the Linnaean Transactions. Monographs of the genera Athyreus 
and Bolboceras have also been published by Dr. Klug in the Nova 
Acta. 

(3. Epimera of the metathorax concealed. 

IV. Coprides. Antennce 9 vel 8-articulatae. Abdomen seg¬ 
ments ventralibus sex connatis. Tibice posticae calcare 
singulo. 

V. Apiiodiid.e. Antennce 9-articulatae. Abdomen segmentis 
ventralibus 6 liberis. Tibice posticae spinis terminalibus 
binis. 

Obs.—The genera Euparia, JEgialia , Chiron , Rypartis, Dej., 
Corythoderus, Kl., and Chcetopisthes, Westw., are assigned to this 
family. 

VI. OrphniDjE. Antennce 10-articulatae. Abdomen segmentis 
ventralibus 6. Tibice posticae spinis terminalibus binis. 

Genera 1 . Hypalus, Dej. ( Geobius , Bridle, Laporte, and Westw. 

Trans. Ent. Soc. iv. 171f). 

2. Orphnus, MacLeay, Westw. Trans. Ent. Soc. iv. 17-5. 

3. Triodontus, Westw. Trans. Ent. Soc. iv. 172. 

4. JEgidium , Dej., Westw. Trans. Ent. Soc. iv. 173; 

and 

5. Ochodceus, including Codocera, Eschsch. ( Stomphax , 

Fischer; Psephus , MacLeay, MS., Kirby and 

Spence, Intr. iii. 678). 

B. Abdomen with five ventral semisegments. 

“ Chatodusl basalts from a specimen in Mr. Melly’s collection, of which the 
head was wanting. Dr. Erichson, having perfect individuals from Peru, gives the 
following as its generic characters :—“ Dicraeodon, Er. Mandibulte extus acute 
bidentatae. Tibia graciles posteriores extus medio obsolete transversim carinatae, 
anlice extus crenulat®, apice acute bidentatae. Unguiculi simplices.” Conspect. 
Ins. Col. Peru, Arch. f. Naturg. 13 Jahrg. I Bd. i. 104. 

* Erichson writes this name Hapalonychus. 

t Erichson adopts Dejean’s uncharacterized name instead of Geobius, the latter 
being previously used for a genus of Carabida by Dejean. 


62 


Mr. J. O. Westwood on 


VII. Trogid;e. ( Metathoracis epiraera obtecta. Anlennce 

clava globulosa perfoliata. Abdomen segmentis ventralibus 5.) 

Thus divided :— 

I. Die Augen ungetheilt. 

A. Die Fiihlerkeule einfach durcbblattert. 

Genera 1. Trox, F. 

2. Omorgus, Er.* 

3. Cryptogenius, Westw. Trans. Ent. Soc. iv. 169. 

B. Das erste glied der fiihlerkeule napfformig, die folgenden 
umschliessend. 

Genera 1. Anaides, Westw., Trans. Ent. Soc. iv. 167. 

2. Chcetodus, Westw., ib. 165.f 

3. Liparoclirus , Erichson (see post). 

II. Die Augen durcli den einspringenden Kopfrand unvollstandig 

getheilt. 

Genera. Spliceromorphus, Synarmostes, Cloeotus and Acantho - 
cerus, MacLeay. See Germar’s Memoir on these 
genera in the Zeitschrift f. d. Entomol. iv. 

This separation of the Gcotrupidce into two families, Geotrupidce 
and Hybosoridce , and of the Trogidce also into two families, 
Orphnidce and Trogidce, is an evident improvement. I cannot 
however but think that the variation in the number of segments 
in the abdomen is a character of too slight importance to be em¬ 
ployed as the distinctive mark of the higher divisions in families. 

* Omorgus (Er. Arch. f. Nat. 13 Jahrg. 1 Bd. p. Ill) is a dismemberment 
from the genus Trox, characterized thus:—“ Liguta prominula cornea. Palpi 
labiales articulo lmo longiore 2do. Maxillarum mala inteiior uncis duobus corneis 
armaia, inferiore simplici, superiore bifido. Prothorax haud ciliatusit is 
divided into two sections : A, with the scutellum hastate and the hind tibiae un¬ 
armed, TV. squalidus, 01. verrucosus, K. Australasia, Latr., &c.; and B, with the 
scutellum oblong, and the hind tibiae armed with small spines. Six South American 
species, one wingless, Tr. bullatus, Curtis, the others winged, Tr. brevicollis, Er. 
(leprosus, Dej.) &c. 

Phoberus, MacLeay, (Horae Ent. i. 137,) founded on Tr. horridus, Fab., a 
Cape of Good Hope species, is overlooked by Erichson in his list of genera of 
Trogidce. It is described by MacLeay “ scute! lo haud distincto.” The scutellum 
is, however, distinct enough in two specimens in my Collection. 

t The characters employed by Dr. Erichson lo distinguish his primary divisions 
and families are, I think, fully proved to be unsatisfactory and unnatural, when we 
see Chcetodus removed from Silphodcs, Apalonychus, &c. (amongst Erichson’s Hy~ 
bosoridce) and arranged far apart from the preceding in the family of Trogidce. 
A comparison of the structural details of Silphodes and Chcetodus, given in plate XI. 
of the fourth volume of our Transactions, will, I think, convince every one of the 
extremely intimate relation of these two genera. 


Lamellicorn Beetles. 


63 


The additions which I have now to make to my former memoir 
belong to the last three of the subdivisional sections in the table 
of the genera given in p. 158 of my former memoir, which termi¬ 
nated with the genera Orphnus and TEgidium. 


OcHOD-EUS. 

Ochod^us, Megerle, MS., Dej, Cat. 1st ed. p. 56 ; St. Farg. et 
Serv. Enc. M. x. 360 ; Mulsant, Lamellic. de Fiance, p. 341 ; 
Psepkus, MacLeay, MS., Kirby and Spence, Introd. to Ent. 
iii. p. 678; Codocera , Eschsch. Germ. Mag. iv. 397; Stom- 
phax, Fischer, Entom. Imp. Russ. ii. p. 158; St. Farg. et 
Serv. Enc. M. x. p. 501. 

The 10-jointed structure of the antennae of this genus, men¬ 
tioned in my previous paper (Trans. Ent. Soc. iv. p. 156), (con¬ 
trary to the descriptions of St. Fargeau and Serville, Latreille and 
Mulsant), has been confirmed by Erichson (Naturg. Ins. Deutsch. 
p. 922). The structure also of the antennae, labrum, mandibles 
and maxillae of the type 0. chrysomelinus having been represented 
in the same memoir, (pi. 12, figs. 3 a, b, c, d, e ,) it will only be 
necessary in this place to notice the structure of the lower lip and 
its various parts, the epimera of the metathorax, the tibial ungues, 
and the ventral articulation of the abdomen, with the view of 
showing its affinity with Orphnus and JEgidium , as indicated in 
my tabular arrangement of the genera (Trans. Ent. Soc. iv. 158), 
and as given by Erichson as above mentioned in the family 
Orphmdce. 

The number of species of Odontceus is small, five only having 
yet been described. They appear however to be widely dis¬ 
tributed, being found, according to Dr. Erichson (who mentions 
his knowledge of five species), in all the quarters of the globe 
except Australia. The following is a synopsis of all the species 
hitherto described, with the addition of two new ones from my 
own Collection:— 

Sp. 1. Ochodceus chrysomelinus, Fabricius, &c. 

Ovalis, subconvexus ; fulvus, supra setulosus ; clypeo ad latera 
bisinuato, capite et pronoto aspere granulosis, elytrisque 
ciliatis his striato-punctatis, interstitiis punctatis ; femoribus 
posiicis subtus dente versus apicem parvo armatis. 

Long. circ. lin. 2. 

Habitat in Gallia, Germania, Austria, nec non in Albania. 

(Dorn. S. S. Saunders.) 



64 


Mr. J. O. Westwood on 


Sp. 2. Ochodceus rufus , Guerin-Meneville, Icon. R. An. Ins. p. 83, 
pi. 22, fig. G. 

“ Tres voisine de YOchodceus chrysomelinus de Fabr.; mais elle 
est un peu plus grande; tout son corps est d’un roux assez 
vif, luisant; l’extremite des mandibules, les yeux et le bord 
anterieur du corselet sont bruns ; la tete et le corselet sont 
ponctues ; les elytres ont des points plus forts, avec une petite 
strie pres de la suture, et quelques faibles traces de stries sur 
le reste de leur surface; les pattes sont velues et ciliees, les 
intermediaires et posterieures ont la jambe dilatee au bout et 
terminee par une couronne de l’epines assez longues.” 

“ Habite le Senegal.” 

Mus. Guerin. 

Sp. 3. Ochodceus miliaris , King, Col. Madagascar, p. 76. 

“ O. brunneus ; capite thoraceque granulatis ; elytris punctato- 
striatls, in interstitiis elevato-punctatis.” 

Long. corp. lin. 3. 

Habitat Madagascar. 

Mus. Reg. Berol. 

Statura 0. chrysomelini . Obscure brunneus, ferrugineo-pilosus. 
Caput punctis elevatis scabrum; postice obsolete punctatum, 
labro emarginato producto; mandibulis arcuatis, validis, intus 
1-dentatis, antennis palpisque concoloribus. Thorax ubique 
confertim elevato-punctatus.” Pectus vage impresso-punc- 
tatum. Segmenta ventralia vix punctata, testacea. Scutellum 
vage punctatum. Elytra punctato-striata, punctis magnis 
impressis, in interstitiis punctis sparsis elevatis scabra. Pedes 
concolores. 

Sp. 4. Ochodceus lutescens , Westw. n. sp. 

Luteus, obscurus; capite, pronoti medio postice scutelloque 
brunneis, supra undique granulis minutissimis obsitus, et 
luteo-setosissimus ; mandibulis porrectis, 3-dentatis, dentibus 
regularibus. 

Long. corp. lin. 4. 

Habitat in India Orientali. D. Boys. 

In Mus. Westwood. 

O. chrysomelino multo major et magis depressus. Caput supra 
planum, margine antico paullo elevato et porrecto, carina 
semicirculari submarginali; tuberculisque duobus obliquis 


Lamellicorn Beetles. 


65 


intus carinam. Labrum porrectum, lutescens, angulis rotun- 
datis, in medio emarginato, longe setoso. Mandibulse porrectae, 
supra concava?, lutescentes, singulo dentibus 5 castaneis 
(apicali incluso) sensim majoribus, duobus apicalibus acutis. 
Antennae pallide lutescentes, articulis 6 et 7 intus angulatis 
setisque nonnullis instructs, clava ovali compressa. Prono- 
tum transversum, margine postico curvato, luteum, opacum, 
undique granulatum et luteo longe-setosum ; regione ante- 
scutellari brunnea. Scutellum elongato-triangulare, brun- 
neum. Elytra late ovata, subdepressa, pronoto concoloria, 
granulata et setosa, singulo striis novem punctorum, striis 
2 et 3, e scutello, magis approximatis, duabus externis fere 
obsoletis. Corpus infra cum pedibus lutescens. 

Plate IX. fig. 1, Insectum magnitudine auctum ; la, caput supra visum; 

1 b, labrura; 1 c, maxilla ; 1 d, instrumenta labialia; 1 e, uagues tarsorum. 


Sp. 5. Ochodceus pictus, Westiv. n. sp. (PI. IX. fig. 2.) 

Niger, parum nitidus, pronoti angulis lateralibus anticis et 
posticis elytrisque fulvis, horum bumeris, fascia irregulari 
media apiceque nigris, supra undique minutissime granulatus 
parum setosus, mandibulis irregulariter dentatis. 

Long. corp. lin. 3|. 

Habitat in India Orientali. (D. Boys.) 

In M us. Westwood. 

Caput supra fere planum, utrinque ante insertionem antennarum 
tuberculo elevato instructum, supra granulatum et parum 
setosum. Labrum nigrum, lateribus luteis. Mandibulae 
nigrae, dente apicali acuto, dentibus duobus parvis mediis, 
supero (praesertim in mandibula sinistra) fere obsoleto, 
dentibusque duobus conjunctis basalibus. Antennae piceae, 
clava magna nigra, apice luteo. Pronotum nigrum granu- 
losum, parum setosum, lateribus fulvis, colore fulvo in angulis 
anticis et posticis in maculas magnas dilatato. Elytra brevia, 
lata, subdepressa, minutissime granulata et parum setosa, 
fulva, singulo striis novem punctorum. Podex, corpus infra 
et pedes nigri, tarsis piceis. 

Fig. 2, Insectum magnitudine auctum; 2a, mandibula dextra ; 2 b, mandibula 
sinistra ; 2c, maxilla ; 2d, instrumenta labialia ; 2c, antenna. 

VOL. II. N. s. PART III. - DEC. 1852. F 


66 


Mr. J. O. Westwood on 


Sp. 6. Ockodceus bituber culatus, Erichson, Col. Peru, p. 111. 

O. testaceus, testaceo-setulosus, fronte bituberculata, femoribus 
muticis. 

Long, prope lin. 3. 

Habitat Peru. 

In Mus. Reg. Berol. 

Sp. 7. Ocliodceus ferrugineus , Westw. 

Lethrus ferrugineus, Eschscholtz in Mem. Acad. Sc. St. Petersb. 
vi. 151. 

Codocera ferrugineum, Germar, Mag. d. Ent. iv. 398. 

Stomphax crucirostris, Fischer, Entomog. de la Russie, ii. p. 
159, tab. 32, f. 1. 

Magnitudo Aphodiifimetarii, at latior ; obscure fulvus, setosus ; 
mandibulis elongatis, acutis, supra antice emarginatis apice 
cruciatis; antennarum geniculatarum articulo lmo magno, 
valde hirto ; oculis nigris, elytris striatis. 

Long. corp. lin. 3. 

Habitat Caucasus, and Teflis in Georgia. 

This species was proposed as a genus to be placed among the Lu- 
canidce by Fischer von Waldheim, near the genus CEsalus , to which 
it bears a strong analogy. Dr. Erichson, however, who had doubt¬ 
less an opportunity of examining the insect, refers it to the present 
genus, with the observation that it is “ einer art welche durch 
langere, gerade, mehr vorgestreckte mandibeln von den ubrigen, 
namentlich von dem allgemeiner bekannten O. chrysomelmus 
abweicht und deshalb fiir einen Lucanincn angesprochen wurde. 
Irrthumlich ist von Fischer die fiihlerkeule als 4-gliedrig be- 
schrieben, und abgebildet, sie ist ebenso als beim 0. chrysomelinus 
gebildet von dem die obige art, ausser in der form der mandibeln, 
keine erheblichere abweichung zeigt, als eine der vier anderen 
mir bekannten arten.” 

The three following additional new species are unique in the 
Collection of M. Reiche, to whom I am indebted for an oppor¬ 
tunity of describing them, and by whom the specific names adopted 
below have been proposed. 

Sp. 8. Ochodceus Amcricanus, n. sp. 

Piceo-castaneus, nitidus, punctatns, lnteo-setosns; mandibula- 


Lamellicorn Beetles. 


67 


rum margine interno 3-dentato, vertice carina transversa 
media ; antennarum clava lutea. 

Long. corp. lin. 3}. 

Habitat in America Boreali. 

In Mus. Reiche. 

Individuis majoribus 0. chrysomelini magnitudine aequalis at 
magis elongatus, coloreque obscuriori. Caput punctatissi- 
mum, margine antico clypei magis elevato nitido et bi-angu- 
lato. Mandibulse supra concavae, apice subacutae, margine 
interno tridentato, sinistra inter apicem et dentem primum 
paullo producta; vertex carina tenui laevi polita transversa 
abbreviata notatus. Antennae lutescentes. Prothorax punc- 
tatus, valde setosus. Elytra punctato-striata, spatiis inter 
strias punctis minutis setigeris obsitis, punctis fere in lineas 
tres longitudinales inter paria striarum dispositis. Pedes picei, 
femoribus magis rufescentibus, tibiarum anticarum dentibus 
duobus apicalibus magnis, 3tio basali minuto. 

Plate JX. fig. 3, mandibulae cum clypeo. 

Sp. 9. Ochodceus luridus , n. sp. 

Oblongo-ovalis, punctatissimus, luteo-testaceus, capite castaneo, 
vertice tuberculis duobus inter oculos transverse positis, man- 
dibula dextra dente 1, sinistra 2-dentata. 

Long. corp. fere lin. 4. 

Habitat in Mexico. 

In Mus. Reiche. (An 0. biluberciilatus , Erich.?) 

Praecedenti paullo major, et magis ovalis. Caput punctis parvis 
obsitum. Clypeus sub-concavus, medio marginis antici recto. 
Mandibula dextera apice acuto, denteque acuto in medio 
marginis interni armata; sinistra dente acuto sub apicem, 
cum incisione profunda ovali dente minori infero instructa; 
vertex carina transversa recta in medio interrupta, inter 
oculos. Antennae lutescentes. Pronotum scabrum, punctis 
numerossimis. Elytra striato-punctata, interstitiis inter 
strias punctis minutis setigeris triplici serie fere regulariter 
ordinatis. Pedes lutescentes, tibiis anticis ut in specie prae¬ 
cedenti formatis. 

Plate IX. fig. 4, mandibulse cum clypeo. 

Sp. 10. Ochodceus rugalus , n. sp. (Plate IX. fig. 5.) 

Piceo-castaneus, elytris magis piceis, punctatus; capitis ver¬ 
tice haud carinato, elytris profundius striatis, punctisque 
majoribus insculptis ; tibiis anticis 3*dentatis. 

f 2 


68 


Mr. J. O. Westwood on 


Long. corp. lin. 3f. 

Habitat in Nova Granada. 

In Mus. Reiche. 

Prmcedenti magnitudine aequalis, at magis depressus et subinde 
latior; rugositate elytrorum, tibiarumque anticarnm struc- 
tura primo intuitu e caeteris distinctissiraa. Caput supra fere 
planum, profundius punetatum, haud carinatum; clypei mar- 
gine antico haud angulato, subrotundato. Antennae piceae, 
articulo basali castaneo (clava deterita). Mandibula dextera 
apice acuto, dente parvo acuto in medio marginis interni; 
sinistra dente majori interno, incisione profunda media, mar- 
gine infero incisionis haud in dentem producto. Prono- 
tum convexum, punctis majoribus et magis distantibus in- 
sculptnm. Elytra profundius striata punctisque profundis 
in striis dispositis, interstitiis inter strias rugosis, punctis 
paucioribus setosis. Pedes piceo-castanei, tibiis anticis den- 
tibus duobus aequalibus apicalibus, denteque 3tio minori 
obtuso fere medio armatis. 

Plate IX. fig. 5, Insectum magnitudine auctum; fig. 5 a, caput supra visum 
cum labro; fig. 5 6, mandibula;; fig. 5c, maxillae; fig. 5d, labium. 

Obs. Ocliodceus clirysomelinus habitat in Albania (Dom. S. 
S. Saunders), nec non in India Orientali (Dom. Hearsey). Indi* 
viduum Indicum in Mus. Reichei vidi cum nomine Ochodceus In¬ 
dianus inscriptum, ex Europseis haud differre videtur. Alterum 
amico Hearseio transmissum majus, dentibus mandibularum dis- 
tinctioribus, elytrisque magis setosis, setis in seriebus quatuor 
fere regularibus inter strias dispositis ; vix tamen species distincta. 

Liparociirus, Erichson. ( Ranidia , Westw. MS. olim.) 

This genus has been merely indicated by Dr. Erichson in his 
distributions of the Trogidce (above detailed) with the following 
short note : “ Eine neue-hollandisehe gattung welche in der kor- 
perform an Acanthocerus erinnert, aber nicht kugeln kann ; die 
hinteren schienen sind auch nicht schildformig erweitert sondern 
dick und mit borsten reihen besetzt: das ersteglied der fiihler ist 
ebenfalls nicht erweitert und die augen sind nicht durchsetzt.” 
(Naturg. Ins. Deutschl. p. 925.) 

The following are the characters of this curious genus :— 

Corpus breve, ovale, gibbosum, glabrum, nitidum ; capite parvo 
inermi; prothorace elytrorum fere latitudine, lateribus re- 
flexis. Caput subquadratum, angulis anticis lateralibus rotun- 
datis, margine antico parum reflexo. Labrum breve, trans- 


Lamellicorn Beetles . 


69 


versum, integrum. Mandibulce porrectae breves, basi lato, 
interne in laminam tenuem products, apice subfalcatae supra 
versus apicem subemarginatae. Maxillce lobis duobus cori- 
aceis, setosis, inermibus. Palpi maxillares satis breves, 
articulo 2do et 4to longioribus. Mentum subquadratum, 
valde setosum. Labium breve, transversum, in rnedio emar- 
ginatum. Palpi labiales brevissimi, 3-articulati, in scapos 
duos latiores insidentes. Antennce breves, 10-articulatae, 
articulo basali crasso setoso, tribus ultimis clavam subsemi- 
globularem formantibus, articulo lmo clavae majori reliquis 
duobus recipienti. Prothorax transversus, convexus, angulis 
anticis porrectis, marginibus lateralibus parum reflexis. Scu- 
tellum parvum, triangulare. Elytra gibbosa, tuberculo hume- 
rali prominenti. Pedes breves. Tibice anticae 3-dentatae 
basique externe denticulatae et calcari unico longo terminali 
instructae. Tibice 4-posticae extus sensim crassiores, subtri- 
quetrae, angulis serratis et setosis, calcaribus duobus longis 
instructae. Tarsi cum unguiculis simplices. 

The general appearance of the species of this genus is very 
similar to that of some of the more oval formed Acanthocerides y 
but the eyes are not divided by a canthus at the sides of the head, 
nor are the four hind tibiae dilated; the clypeus is also much 
more quadrate, and the first joint of the club of the antennae is 
cup-shaped, receiving the second and third joints, which, especially 
the last, is very much smaller than the first joint of the club. In 
its structural details it approaches very closely t oAnaides, Westw. 
Trans. Ent. Soc. IV. PI. XI. fig. 6, and details, and Hybosorus , 
ditto, PI. XI. fig. 1. 

Sp. 1 . Liparochrus geminatus, Westw. (Plate IX. fig. G.) 

Piceo-niger, nitidus; capite transversim rugoso, pronoto et ely- 
tris vage punctatis; bis striis gracillimis per paria dispositis 
impressis. 

Long. corp. lin. 4. 

Habitat in Nova Hollandia, prope Adelaidam. 

In Mus. Westwood. 

Caput subquadratum, angulis anticis lateralibus rotundatis, 
supra subconvexum ; margine antico parum reflexo, supra 
transversim punctatum. Antennae et mandibulae eastaneo- 
piceae. Pronotum nigrum, nitidissimum, convexum, punctis 
parvis vage impressum, lateribus parum reflexis, subcastaneis 
et magis rugosis. Elytra convexa, nitida, sutura subcastanea, 


70 


Mr. J. O. Westwood on 


parcius punctata, singulo striis 9 gracillimis, suturali impari, 
reliquis per paria dispositis. Pedes nigri. 

Fig. 6, Inseclum magnitudine auctum ; 6 a, caput a latere visum ; 6 b, clypeus, 
maudibula, labrum et anlenna ; 6 c, antenna ; 6 d, apex clavae antennarum ; 
6e, mandibula ; 6f, maxilla; 6g, instrumenta labialia; 6h, tibia et tarsus an- 
ticus; 6i, tibia et tarsus posticus. 

Sp. 2. Liparochrus fossulatus, Westw. 

Niger, capite punctatissimo obscuvo, pronoto aeneo-nitido, 
punctis minimis vage impresso, lateribus castaneis; elytris 
nigris, nitidis, callositate humerali eastaneo, striatis, striis dor- 
salibus punctis magnis notatis. 

Long. corp. lin. 4. 

Habitat in Nova Hollandia, prope Adelaidam. 

In Mus. Westwood. 

Caput subquadratum, angulis anticis rotundatis, disco puncta¬ 
tissimo. Mandibulae et antennae picese. Pronotum glaberri- 
mum, punctis minimis vage impressum aeneum, lateribus 
reflexis castaneis. Elytra nigra, nitidissima, singulo striis 
noveni, dorsalibus per paria dispositis, punctis magnis ovali- 
bus parum profundis impressa. Pedes nigri. 

Sp. 3. Liparochrus sculptilis , Westw. (PI. IX. fig. 7.) 

Piceo-niger, subnitidus, marginibus pronoti castaneis, undique 
punctatissimus, punctis pronoti et elytrorum transversim plus 
minusve confluentibus; elytris striatis, striis per paria dis¬ 
positis, tibiis anticis 2-dentatis. 

Long. corp. lin. 5. 

Habitat in Novae Ilollandiae partibus orientalibus, prope flu- 
vium Mundarra dictum. 

In Mus. D. Bond. 

Praecedentibus duobus fere duplo major, minus convexus, sub¬ 
nitidus, punctatissimus. Caput parvum, subquadratum, an¬ 
gulis anticis rotundatis, punctis numerosis, distinctis et pro¬ 
fundis impressum; vertice postice transversim elevato nitido, 
vix tamen carinato. Maxillae lobi interni apice in dentem 
obtusum brevem producto. Pronotum punctis minutis ob- 
longis transversis numerosissimis undique insculptum. Elytra 
rotundata, dorso parum depressa, undique punctis minutis 
curvatis plus minusve confluentibus, striisque novem simpli- 
cibus longitudinalibus in singulo ornatis, per paria dispositis; 
suturali sola impari. Pedes picei, tibiae anticae ante medium 


Lamellicorn Beetles. 


71 


parum dilatata, extus serrata, dentibus duobus apicalibus 
tantum armatis. 

Plate IX. fig. 7, Insectum magnitudine auctum; fig. 7 a, maxillarum lobi api- 
cales; fig. lb, tibia antica. 

Glaresis, Frivaldszky, MS. 

This is another remarkable genus, merely indicated by Dr. 
Erichson, at the end of the Lamellicorn beetles, in the following 
note : “ Der noch unbeschriebene gattung Glaresis , Friv., gehort 
auch vermuthlich zu den Trogiden, ich babe zu indess noch nicht 
naher untersucht. Ein merkwiirdiger kafer ( Gl. rufa, Friv., aus 
Ungarn), welcher in seinen Aeussern auch an Psammodius erin- 
nert. Die fiihlerkeule ist sehr gross. Die mandibeln sind an 
der wurzel breit, die spitze ist schmal und scliarf. Die augen 
sind vom erweiterten kopfrande halb durchsetzt. Der hinterleib 
ist ganz hautig, von unten durch die verdickten hinterbeine 
gedeckt. Die binterschienen sind an der spitze hackenformig 
velangert; die hinterfusse sehr kurz. Von den iibrigen 7'rogiden 
weicht diese gattung auch dadurch merklich ab, dass die beine 
keine scharr,—sondern wirkliche Grabbeine sind.”— Nattirg. Ins. 
DeulschL Col. p. 925 , note. 

The following are the detailed characters of this little genus, 
which, in the structure of the mouth, appears to me to approach 
much nearer Orphnus and JEgidium than to Trogidce. The struc¬ 
ture of the antennae, mandibles and maxillae clearly proves that 
there is no real relation between this genus and Psammodius. 

Corpus obovatum, antice angustius, convexum, setulosum. Caput 
(fig. 8 «), breve, latum, inerme, utrinque ante lobum oculos 
secantem incisum, oculi septo semidivisi (fig. 8 b). Cly - 
peus brevissimus. Labrum breve, transversum, vix emargi- 
natum, angulis lateralibus rotundatis, ciliatum. Mandibulce 
porrectae, corneae, extus rotundatae hirsutae, basi latiores, 
dente acuto curvato terminate, intus ante apicem lobo lato 
truncato, et incisione prope basin, membrana obsita, in¬ 
structs (fig. 8 c). Maxillce elongatae bilobatae, lobis spinulis 
seu ciliis robustis curvatis armatis, extus setis longis in¬ 
structs. Palpi maxillares breves, articulo basali brevissimo; 
ultimo crassiori elongato-ovale (fig. 8r/). Mentum subqua- 
dratum, antice paullo latius, valde setosum. Labium vix 
productum, setis obtectum. Palpi labiales, breves, clavati, 
articulo basali brevissimo, tertio magno subtruncato (fig. 8c). 


72 


Mr. J. O. Westwood on 


Antennce breves, 10-articulatse, articulo lmo apice clavato, 
2ndo robusto, 3 —7 brevissimis oblique transversis, 8vo max- 
imo reliquis duobus subincludenti (fig. 8 f). Prothorax 
transversus, capite latior, antice paullo angustior, lateribus 
subrotundatis, angulis posticis acutis. Elytra magna, con- 
vexa, podicem tegentia, profunde sulcata, spatio angusto 
inter sulcos elevato setoso. Pedes antici breves. Femora 
crassa, tibiae extus tridentatae (fig. 8g). Pedes intermedii 
graciles, tibiae prope medium spinula parva armatae (fig. 8 li). 
Pedes postici breves, femoribus valde incrassatis, tibiis bre- 
vibus latis pone medium extus emarginatis, apice in lobum 
crassum oblique truncatum producto (fig. 8 i). 

Species unica. Glaresis Frivaldszkyi , Westw. 

(PI. IX. fig. 8.) 

Glaresis rufa , Frivaldszky, MS. 

Totus luteo-rufescens, opacus, pronoto subnitido, capite tenu- 
issime punctato, pronoto punctato, sulco medio impresso, 
elytrorum singulo 9-sulcato, spatio angusto inter sulcos 
granulato et setoso. 

Long corp. lin. 2. 

Habitat in Hungaria. 

Mus. Hope, nostr. &c. 

Fig. 8, Insectum magnitudine auctum; 8 a, caput cum mandibula dextra ; 
8 b, oculus septo semidivisus; 8c, mandibula; 8 d, maxilla; 8c, mentum cum 
palpis lateralibus ; 8/, antenna; 8 g, pes anticus ; 8 h, pes intermedius; 8i, pes 
posticus. 

Tlie family Trogidce has been further enriched with a new genus 
by M. Mulsant, the distinguished Entomologist of Lyons, under 
the name and character of 


Eremazus. 

Pieds intermediaires aussi rapproches que les autres a leur 
naissance. Ecusson visible. Elytres embrassant l’abdomen dans 
son pourtour, et cachant le pygidium. Epistome tronque en 
devant. Labre transverse; debordant faiblement l’epistome, et 
laissant a decouvert la majeure partie des mandibules, qui sont 
cornees. Antennes inserees au devant des yeux, sous un faible 
rebord de la tete : a premier article herisse de cils. Yeux tres- 
retrecis en dessus par les joues et par le front, faiblement visibles 
pres des angles de devant du prothorax ; celui-ci non sillonne. 


Lamellicorn Beetles. 


73 


Palpes maxillaires a dernier article plus long de tous, retreci de la 
base a l’extremite. Ventre moins long que les deux derniers 
segments peetoraux. Cuisses renflees. Jambes de devant forte- 
ment trident£es au cote externe. Tarses retrecis a partir de 
l’extremite du premier article; celui-ci en triangle allonge. Ongle 
unique. Corps suballonge. 

“ Les insectes de cette coupe, par la forme de leurs corps, se 
rapprochent des premiers Pleurophorates, dont ils s’eloignent par 
la grosseur de leurs cuisses. Ils ont plus d’analogie avec les 
Psammodiaires, et semblent servir a unir ceux-ci aux Trogidiens .” 

It is to be regretted that M. Mulsant has omitted to describe 
the form of the scutellum, and to state whether the elytra are 
soldered together, or whether the insect is winged, as well as to 
describe the structure of the mandibles, maxillae, mentum, and 
labium ; so that, in the absence of these particulars, we are quite 
unable to determine the precise affinities of the genus. 

The genus consists of a single species. 

Eremazus unislriatus , Mulsant, Proceed. Acad, des Scienc. 

Lyon, 13 February, 1851. 

“ Suballonge et subparallele; d’un fauve obscur sur la t&te et 
sur le prothorax, plus pale et plus rouss&tre sur les elytres: 
celles-ci rayees d’une strie naissaut du calus, et ofFrant poste- 
rieurement les traces de deux autres stries.” 

Long. corp. If lin.; lat. f lin. 

Habitat Algeria. 


I take the opportunity of adding two further communications 
having reference to the previously-published Memoir upon these 
Lamellicorn insects, with which I have been also favoured by M. 
Reiche, of Paris. 

Orphnus Verreauxii, Reiche. (Westw. in Trans. Ent. Soc. IV. 
p. 179.) 

M. Reiche informs me that this insect is the true Scarabceus 
Corydon, Olivier, Ent. n. 227, t. 28, f. 245 ; Oliv. Abb. Sturm, 
i. p. 113, n. 227, t. 52, f. 4 ; Schonherr, Syn. Ins. i. p. 15. 

Scarabceus Silenus , Jablonsky, Nat. S. ii. p. 87, n. 70, t. 10, 
f. 2. 

Scarabceus Rhinoceros minor , Voet, Col. t. 18, f. 119, ed. Panz. 
i. p. 79, n. 119. 



74 Mr. J. O. Westwood on Lamellicorn Beetles. 


Triodontus Otvas, Reiclie, MS. (PI. IX. fig. 9.) 

Castaneo-piceus, nitidissimus lsevis, capite cornu erecto armato, 
pronoto antice retuso, 6-dentato, elytris striisque longitudina- 
libus gracillimis vix punctatis. 

Long. corp. lin. 7. 

Habitat in Madagascar. 

In Mus. Reiclie, Parisiis. 

Tr. nitidulo (Westw. Tr. Ent. Soc. IV. 173) triplo major, pro¬ 
notoque magis armato. Caput semicirculare, nitidum, laeve, 
margine antico parum elevato; vertice cornu valido erecto 
armatum. Mandibulae acutissimae, singula dentibus duobus 
marginis interni acutis (in dextera magis approximatis.) 
Maxillae lobo supero dentibus duobus validis curvatis acutis 
armato; lobo infero etiam bidentato. Pronotum laeve, niti¬ 
dum, antice valde retusum, in medio dentibus duobus con- 
tiguis alterisque duobus in utroque latere, margine postico 
nec non basi elytrorum serie transversa impressionum profun- 
darum. Elytra laevissima, nitida, singulo striis 9 gracillimis 
vix punctatis notata. Pedes castanei. 

Plate IX. fig. 9, Insectum magnitudine auctum ; fig. 9a, mandibulas j fig. 9b, 
maxillarum lobi apicales; fig. 9 c, antenme. 



