Genus: Megachile Latreille, 1802
Subgenus: Rhodomegachile Michener, 1965
Common name: none
Megachile (Rhodomegachile) are bees with black integument on the head and thorax and have entirely red-orange, mostly hairless abdomens (Michener 2007; Houston 2018). They range in body length from 5–10 mm (Michener 2007).
Megachile (Rhodomegachile) may be confused with bees within the subgenera Hackeriapis due to the weak or nearly absent T6 carina, lack of deep postgradular grooves in T2–T3, and broad glossa (Gonzalez 2008). Megachile (Rhodomegachile) can be differentiated from Hackeriapis by the red integument of their abdomen (Michener 2007; Gonzalez 2008).
Megachile (Rhodomegachile) are known to visit flowers of several genera in the family Myrtaceae, including Eucalyptus, Callistemon, and Melaleuca (Michener 1965; King and Exley 1985).
Megachile (Rhodomegachile) have been observed building nests of resinous material in pre-existing cavities, including in man-made holes (Houston 2018). Female Megachile (Rhodomegachile) have been observed collecting cerumen, a combination of wax and resin, from the nests of stingless bees (Meliponinae) (Houston 2018).
There are no known invasives.
Megachile (Rhodomegachile) ranges throughout northern Australia from Queensland to Western Australia and can be found as far south as New South Wales (Michener 2007; Houston 2018). They occur predominantly in southern Queensland (Michener 2007).