(Xeromelissa) (Xeromelissa) is a biological genus in the family Colletidae (Colletid Bees) and order Hymenoptera (Ants).
Xeromelissa australis
Xeromelissa brevimalaris
Xeromelissa chillan
Xeromelissa chusmiza
Xeromelissa farellones
Xeromelissa irwini
Xeromelissa laureli
Xeromelissa longipalpa
Xeromelissa luisa
Xeromelissa machi
Xeromelissa minuta
Xeromelissa mucar
Xeromelissa nolanai
Xeromelissa nortina
Xeromelissa obscura
Xeromelissa pedroi
Xeromelissa rosie
Xeromelissa rozeni
Xeromelissa sielfeldi
Xeromelissa wilmattae
Xeromelissa xanthorhina
Amphylaeus
Brachyglossula
Brachyhesma
Cadeguala
Cadegualina
Callohesma
Callomelitta
Caupolicana
Chilicola
Chrysocolletes
Colletes
Crawfordapis
Dasyhesma
Diphaglossa
Euhesma
Eulonchopria
Euryglossa
Euryglossina
Euryglossula
Geodiscelis
Glossurocolletes
Hemirhiza
Hesperocolletes
Heterohesma
Hylaeus
Hyleoides
Hyphesma
Leioproctus
Lonchopria
Lonchorhyncha
Melittosmithia
Meroglossa
Mourecotelles
Mydrosoma
Mydrosomella
Neopasiphae
Niltonia
Pachyprosopis
Palaeorhiza
Paracolletes
Phenacolletes
Ptiloglossa
Ptiloglossidia
Scrapter
Sericogaster
Stenohesma
Trichocolletes
Tumidihesma
Willinkapis
Xanthesma
Xenochilicola
Xenorhiza
Xeromelissa
Zikanapis