Cyphanthidium Pasteels, 1969

Eardley, Connal & Griswold, Terry, 2018, Taxonomic revision of Cyphanthidium Pasteels (Hymenoptera: Apoidea: Megachilidae: Megachilinae: Anthidiini), an endemic Afrotropical bee genus, Zootaxa 4450 (1) : -

Cyphanthidium Pasteels

Cyphanthidium Pasteels, 1969: 10 , 17, 57. Type species: Cyphanthidium intermedium Pasteels, 1969 , by original designation.

Trianthidiellum Pasteels, 1969: 10 , 17, 58, 109. Type species: Hypanthidium sheppardi Mavromoustakis, 1937 , by original designation; Michener and Griswold 1994: 301, syn.

Anthidiellum (Trianthidiellum) : Pasteels 1984: 113 –114.

Diagnosis. Among Afrotropical genera Cyphanthidium can be recognized by the combination of extensive yellow maculations in both sexes, aroliae present, preoccipital margin not carinate, omaulus either not carinate or carinate only dorsally, male S5 broadly, shallowly emarginate and with small apicolateral spine, and female with fourtoothed mandible and scopa.

Cyphanthidium has the megachiliform shape and general coloration of many Afrotropical Afranthidium but is readily distinguished by the presence of arolia and the four-toothed female mandible (Michener 2007). The recent molecular phylogeny of Litman et al. (2016) placed Cyphanthidium in the Dianthidium group, in a well-supported clade that included Icteranthidium , Eoanthidium , Anthidiellum , Pachyanthidium , Benanthis , Plesianthidium , and Rhodanthidium . All of these genera, except Rhodanthidium , include Afrotropical species.