Genus and species of moth
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Tathorhynchus is a monotypic moth genus in the family Erebidae erected by George Hampson in 1894. Its only species, Tathorhynchus exsiccata, the Levant blackneck or double-spotted snout, was first described by Julius Lederer in 1855. The nominate form is found on the Canary Islands and in North Africa, tropical Asia and tropical Africa. It has been introduced in Dominica and Argentina. Subspecies "Tathorhynchus exsiccata fallax" is found in the northern half of Australia, as well as Norfolk Island and New Zealand.
Taxonomy.
This species was transferred to "Lygephila exsiccata" by Goater et al. in 2003, but was returned to "Tathorhynchus" by Fibiger and Hacker in 2005.
Technical description and variation.
"T. exsiccata" Led. (= "vinctalis" Walk.) Forewing whitish, thickly suffused with grey brown, darker towards termen; the orbicular and reniform stigmata marked by pale spots separated by a black dash; another beyond reniform; outer line pale preceded by black marks; a terminal row of black lunules; hindwing greyish white, darker terminally.
The wingspan is about 40 mm.
Biology.
The larvae of the nominate form feed on "Indigofera tinctoria", "Medicago sativa" and "Spartium junceum". The larvae of "Tathorhynchus exsiccata fallax" probably feed on "Medicago sativa".
References.
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