Cecidomyiidae, spatula - Neolasioptera impatientifolia 100 Acre Wood, Winneshiek County, Iowa, USA July 14, 2011 Size: 2 mm
From another unsuccessful attempt at rearing jewel weed, Impatiens pallida gall flies.
Gagne's The Plant-feeding Gall Midges of North America, page 22: "the third instar (rarely the second also) has a spatula, which is a sclerotized, usually elongate, dermal structure on the venter of the prothorax."
Contributed by MJ Hatfield on 1 February, 2013 - 9:17am Last updated 8 March, 2013 - 9:18pm |