Abstract
We review the endemic Australian bee fly genusEusurbusRoberts (Bombyliidae, Bombyliinae) and recognize two described species and three new species. The monotypic genusBromoglycisHull is identified as a new junior synonym ofEusurbus. Another species,E. nigracinctusRoberts, is designated as the type species of a new genusZentamyiagen. nov. This new genus is similar toEusurbusbased on several combined external characters including two-segmented palp, one-segmented flagellomere, open anal cell and cellr5, and the cellbrmuch longer than cellbm. However,Zentamyiagen. nov. has a more flattened scutum, and the apex of the flagellum is tapered. Moreover, the male genitalia are very different fromEusurbus, the male epandrium is narrow and long, and its posterolateral margin has a cluster of dense hairs; the female lacks a sand chamber, and the sperm pump is long and strong. A morphological phylogeny toEusurbusspecies is provided.
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