Ancistroidini

The Ancistroidini are a tribe in the Hesperiinae subfamily of skipper butterflies. They are often blackish in base color; several of the genera contain the species commonly called "demon butterflies" or "demon skippers". As most Hesperiinae have not yet been assigned to tribes, more genera are likely to be placed into this presently rather small group eventually.^[1][2]

Ancistroidini
Grass demon (Udaspes folus)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Hesperiidae
Subfamily:	Hesperiinae
Tribe:	Ancistroidini
Genera
Ancistroides Iambrix Idmon Koruthaialos Notocrypta

References

1. Warren, A. D., Ogawa, J. R., & Brower, A. V. (2008). Phylogenetic relationships of subfamilies and circumscription of tribes in the family Hesperiidae (Lepidoptera: Hesperioidea). Cladistics, 24(5), 642-676.
2. Warren, Andrew D. The higher classification of the Hesperiidae (Lepidoptera: Hesperioidea). Oregon State University, 2006.