Pachyanthidium Friese

Eardley, Connal & Griswold, Terry, 2017, Taxonomic revision of the Afrotropical species of Pachyanthidium Friese (Hymenoptera: Megachilidae: Anthidiini), Zootaxa 4237 (3), pp. 401-453 : 403

Pachyanthidium Friese

Anthidium (Pachyanthidium) Friese 1905: 66 –75. Type species: Anthidium bicolor Lepeletier , designated by Cockerell, 1920.

Pachyanthidium Friese : Cockerell 1930: 45.

Pachyanthidium (Pachyanthidium) Friese : Pasteels 1984: 4 –153.

Pachyanthidium (Trichanthidium) Cockerell, 1930: 53 . Type species: Pachyanthidium occipitale Cockerell , monobasic.

Ausanthidium Pasteels, 1969: 10 –61. Type species Anthidiellum ausense Mavromoustakis, 1934 , by original designation.

Pachyanthidium (Ausanthidium) : Michener and Griswold 1994: 301 –319.

Pachyanthidium (Trichanthidiodes) Michener and Griswold, 1994: 301 –319. Type species: Pachyanthidium semiluteum Pasteels, 1981 , by original designation.

Diagnosis. Diagnostic features of Pachyanthidium are the lamellate omaulus; carinate to lamellate preoccipital margin; gently outcurved subantennal suture; short, stout multi-dentate mandible; closed scutal-scutellar suture; and lamellate scutellum that extends posteriorly beyond the metanotum.

Subgenera can be recognized as follows: Ausanthidium has naked eyes and arolia present on all legs; it is monotypic and Afrotropical. Trichanthidium has hairy eyes, no arolia, lateral spines on T3–T5 and a ventral, longitudinal carina on the mid femora. It comprises four Afrotropical species. Trichanthidiodes also has hairy eyes and no arolia, but does not have spines on T3–T5 or a carina on the mid femora. It is monotypic and Afrotropical. Pachyanthidium s. str. has eyes that lack hairs and no arolia. There are ten Afrotropical species.