To date, Promelitta alboclypeata is the only known species for the genus Promelitta and the tribe Promelittini. Promelitta presents a few apomorphies: metasomal terga with basal hair bands, shape of propodeum, female hind basitarsus with expanded apical blade, shape of hidden male sterna (S6-8) and male genitalia (Michener 1981). Promelitta shares also many morphological features with other genera of Melittidae s.l.. For instance, the female keirotrichia and its setae are like those of Eremaphanta (Dasypodaini) and Capicola (Dasypodaini) (Michener 1981, Engel 2005, Michez & Patiny 2006). The female pygidial plate has a median elevated area like in Capicola (Dasypodaini) and Sambini. The clypeus of male is coloured as in some Eremaphanta (Dasypodaini) and Macropis (Macropidini). The outer margin of stipes and the apicolateral structure of male S7 are similar to Dasypoda (Dasypodaini) and Sambini. The gonostylus is articulated as in Sambini and Macropidini (Michener 1981). Like Afrodasypoda, the phylogenetical affinities of Promelitta are still unclear.
The distribution of Promelitta alboclypeata shows a disjunction of about 4,200km between the Moroccan and Egyptian/Sudanese populations. In Morocco, the species is known mostly in sub-desertic areas. The vegetation is typically sparse in sandy hollows near temporary water, and with linear growth of the spiny shrub Convolvulus trabutianus Schweinf. & Muschl. (Convolvulaceae) in the shallow flash-flood runnels on the hillside slopes.

Citation:
Michez D. 2010. The genus Promelitta Warncke 1977. Atlas Hymenoptera, Mons, Gembloux. http://www.zoologie.umh.ac.be//hymenoptera/page.aspx??ID=19