Wh. Robinson et Bv. Brown, LIFE-HISTORY AND IMMATURE STAGES OF 2 SPECIES OF MEGASELIA (DIPTERA, PHORIDAE) PREDATORY ON GALL-INHABITING INSECTS, Proceedings of the Entomological Society of Washington, 95(3), 1993, pp. 404-411
Larvae of Megaselia chainensis are predators of the cockscomb leaf gal
l aphid Colopha ulmicola on elm trees. Larvae of M. submarginalis are
predators of larval Contarinia negundifolia, a leaf gall-inducing ceci
domyiid fly on boxelder trees. Larvae of both Megaselia species consum
e several hosts during their development. Both are univoltine and sync
hronized with the life cycles of their hosts. Larvae of both species a
re described and illustrated.