Hylaeus niloticusIslands: Molokai, Lanai, Hawaii
Habitats: Coast to dry lowlands. No recent collections.
Xerces: Hylaeus niloticus is a coastal and dry forest bee endemic to the islands of Molokai, Lanai, and Hawaii in Hawaii. It is similar to H. assimulans, distinguished by the smaller size, shape of the male scape, and other details. It has not been collected since 1918, and may be extinct.
Insects of Hawaii: Medium-sized bees with clear to smoky wings. Male scape weakly dilated and moderately arched; face with one large mark extended at the sides well above antennal sockets as a narrow stripe next to eye, and with supraclypeal area partly yellow or entirely black. Female black and unmarked.
Colors of integument and pubescence are based on old specimens. The new name Prosopis nilotica was proposed by Warncke (1970), who considered Prosopis to be the correct name of the genus; his reason for naming a Hawaiian species nilotica (i.e., of the Nile) is unclear. Warncke also proposed the new name P. murana for H. insignis (both are homonyms of names that Meade-Waldo  considered synonyms of other species), as well as unwarranted names for H. laticeps, H. nivalis, and H. vicinus, homonyms already corrected by Meade-Waldo (1923). See remarks for H. assimulans.
Insects of Hawaii Volume 17
Hylaeus near military lands