Oligolectic on Heliotropium (Boraginaceae) (Mavromoustakis 1954; Gotlieb
et al. 2014).
All three species in the genus exploit flowers of Heliotropium (Boraginaceae) as probably exclusive pollen source. The females have long, apically curved and capitate bristles on their labial palpi (Peters, 1974). As already assumed by Peters (1974), these modified bristles serve to extract pollen from the tiny and narrow-tubed Heliotropium flowers (A. Müller and C. Sedivy, personal observation for H. circumventa).