Microcera
Microcera is a genus of Ascomycete fungi in the Nectriaceae family. It was thought to be monotypic genus with only one species, Microcera coccophila  As well as former species Microcera coccophila var. platyspora  being reclassified as Microcera coccophila. Microcera coccophila was initially found on the bark of young living trees of Salix and Fraxinus in France. The genus has been considered as a synonym of  genus Fusarium  in major taxonomic revisions. Then Gräfenhan et al. in 2011 resurrected genus Microcera based on DNA sequence data and accepted four Microcera species, viz. M. coccophila, M. diploa , M. rubra  and M. larvarum . Lombard et al. then further investigated phylogenetic relationships of Microcera based on DNA sequence data and reported that it constitutes a lineage distantly related to Fusarium but closely related to Fusicolla and Macroconia. Both within the Nectriaceae family. Then in 2021, 3 fungi were associated with Kuwanaspis howardi, a scale insect found on Phyllostachys heteroclada (fishscale bamboo) and Pleioblastus amarus (bitter bamboo) in China. New species Podonectria kuwanaspidis  sp. nov. and Podonectria novae-zelandiae , (both in Podonectriaceae family, Pleosporales order) as well as Microcera kuwanaspidis  sp. nov. It has a cosmopolitan distribution worldwide. Species
As accepted by Species Fungorum;

Microcera chrysomphali 
Microcera coccophila 
Microcera diploa 
Microcera kuwanaspidis 
Microcera larvarum 
Microcera physciae 
Microcera pseudaulacaspidis 
Microcera rubra 

Former species;
 M. acuminata  = Fusarium acuminatum, Nectriaceae
 M. aurantiicola  = Microcera larvarum
 M. ciliata  = Fusarium ciliatum, Nectriaceae
 M. clavariella  = Cladosterigma clavariella, Exobasidiales
 M. coccophila var. platyspora  = Microcera coccophila
 M. curta  = Microcera larvarum
 M. fujikuroi  = Microcera diploa
 M. henningsii  = Microcera diploa
 M. merrillii  = Microcera diploa
 M. orthospora  = Mycogloea orthospora, Agaricostilbales
 M. parlatoriae  = Microcera larvarum
 M. pluriseptata  = Microcera coccophila
 M. rectispora  = Tetracrium rectisporum, Podonectriaceae
 M. tasmaniensis  = Fusarium tasmaniense, Nectriaceae
 M. tonduzii  = Microcera larvarum

References

 
Nectriaceae genera