Ubristes

Reemer, Menno, 2013, Taxonomic exploration of Neotropical Microdontinae (Diptera: Syrphidae) mimicking stingless bees, Zootaxa 3697 (1), pp. 1-88 : 10

Key to species of Ubristes

1. Abdomen black (fig. 252)........................................................................ flavitibia

– Abdomen partly or entirely yellow (figs. 256, 261)............................................................ 2

2. Abdomen entirely yellow (fig. 256).................................................................. ictericus

– Abdomen brownish with yellow maculae (fig. 261)................................................... jaguarinus