kleptoparasitic on Nephila with heteropteran prey, Florida (Eisner, Eisner & Deyrup 1991: Chemical attraction of kleptoparasitic flies to heteropteran insects caught by orb-weaving spiders. – Proc. natn. Acad. Sci. U.S.A. 88: 8194-8197. p 8197 (as sp.))