Genus: Gronoceras Cockerell, 1907
Common name: none
Gronoceras are large, elongate bees ranging in body length from 17–29 mm (Michener 2007). They often have black integument with grey and black pubescence in addition to large areas of red or reddish-yellow pubescence on their thorax and head (Michener 2007). Gronoceras was previously a subgenus of Megachile (Trunz et al. 2016).
(modified from Michener 2007 unless otherwise stated)
Gronoceras may be confused with species in the subgenus Megachile (Stenomegachile) due to similar dense hairs on the male T6. Gronoceras can be differentiated by the presence of three apical spines on the front and middle tibia (Michener 2007).
There was a single record of Gronoceras in Jamaica that indicates it may have been introduced to the area, but there is no evidence that the genus established there (Michener 2007).
Gronoceras have been observed pollinating Ansellia africana, Cajanus cajan, and Vanilla imperialis (FAOUNR 2008; Martin 2009).
Gronoceras occurs throughout Africa, from Senegal to Eritrea, south to Namibia, and Natal in South Africa (Michener 2007).