Ischyomius

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Hexapoda
Classis: Insecta
Cladus: Dicondylia
Subclassis: Pterygota
Cladus: Metapterygota
Infraclassis: Neoptera
Cladus: Eumetabola
Cladus: Endopterygota
Superordo: Coleopterida
Ordo: Coleoptera
Subordo: Polyphaga
Infraordo: Cucujiformia
Superfamilia: Tenebrionoidea

Familia: Pythidae
Genus: Ischyomius
Species: I. bicolor – I. championi – I. chevrolati – I. denticollis – I. escalonai – I. hovorei – I. nevermanni – I. singularis
References

Pollock, D.A. 1998: Revision of the Neotropical genus Ischyomius with a discussion on its systematic position (Insecta: Coleoptera: Tenebrionoidea: Pythidae). Annals of Carnegie Museum, 67(3): 245–264.
Pollock, D.A. 2007: A new species of Ischyomius Chevrolat (Coleoptera: Pythidae) from Costa Rica. Coleopterist's bulletin, 61: 277–280.
Pollock, D.A. 2009: A new species of Ischyomius from Venezuela (Coleoptera, Tenebrionoidea, Pythidae) with a revised key to world species. ZooKeys, 6: 69–74. AbstractPDF