Praz, C., Al-Shahat, A.M. & Gadallah, N.S. (2021)

Taxonomic revision of the subgenus Eutricharaea Thomson in Egypt, with a key to the species and the description of two new species (Hymenoptera, Anthophila, Megachilidae, genus Megachile Latreille)

. Zootaxa, 5032 (3), 301–330.