. Veli Badin, Sočerga, Istra, August 2008.
Endemic species of Istria and Quarner (Croatia, Slovenia and Italy). In Slovenia at the Karst edge in Slovene Istria (sub-Mediterranean region).
(Campanulaceae) specialized species (personal observations). Nests probably in burrows in the ground.
Univoltine. Flies in August and September.