The formerly monotypic genus Aesiocopa Zeller, 1877 is reviewed. Three species are included: A. vacivana Zeller, 1877 (type species) from Panama and Costa Rica; A. necrofolia Brown & Phillips, new species, from Mexico, Nicaragua, and Costa Rica; and A. grandis Brown, new species, from Costa Rica. The genus is recorded sparingly from Mexico to Panama. Although A. vacivana and A. grandis are known from only a handful of specimens, A. necrofolia has been reared from larvae numerous times in Costa Rica and from 15 different plant families: Asteraceae, Euphorbiaceae, Fabaceae, Hernandiaceae, Icacinaceae, Lauraceae, Magnoliaceae, Myrsinaceae, Myrtaceae, Piperaceae, Rubiaceae, Salicaceae, Sapindaceae, Smilacaceae, and Urticaceae. The abundance of rearing records suggests that the species is polyphagous, and the paucity of field-collected adults suggests that it may not be avidly attracted to light. The same may be true for its congeners.
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