Agromyza sp. 4

Material examined. OKLAHOMA: Payne Co., Mehan, 36.014339° N, 96.996744° W, 10.viii.2016, em. 6.ix.2016, M.W. Palmer, ex Elymus canadensis, #CSE3042, CNC659971 (1♀) .

Host. Poaceae: Elymus canadensis L.

Leaf mine. Solitary larva forming an irregular track 2–3 mm wide and 12.5 cm long, beginning 1.5 cm from the leaf apex (leaf 4 mm wide at the end of the mine; actual oviposition point unknown). Whitish to pale green, speckled with fine, dark green frass grains.

Puparium. Formed outside the mine.

Comments. See comments under Agromyza bispinata .