Agromyza diversa Johnson

(Figs. 1, 67)

Material examined. OHIO: Delaware Co., Sunbury, Monkey Hollow Rd., 13–15.ix.2014, em. 16–24.x.2014, C.S. Eiseman, ex Laportea canadensis, #CSE1432, CNC384847, CNC384848 (1♂ 1♀) ; TENNESSEE: Davidson Co., Nashville, West Meade Waterfall (36.094655, -86.913252), 21.viii.2017, em. 15–17.ix.2017, C.S. Eiseman, ex Laportea canadensis, #CSE4273, CNC939958–939960 (1♂ 2♀) ; same collection, em. 12.v.2018, #CSE4536.

Host. * Urticaceae: Laportea canadensis (L.) Weddell. Spencer (1969) speculated that this species was responsible for mines found on Lithospermum officinale L. ( Boraginaceae) in Ontario.

Leaf mine. (Fig. 67) Full-depth, dirty whitish; serpentine, often forming a secondary blotch. The frass is dark brown and liquidy, deposited in irregular lumps and streaks.

Puparium. Reddish-brown; formed outside the mine.

Distribution. USA: IA, IL, IN, MA, NC, NY, *OH, *TN, VA, VT; Canada: ON. We have seen similar leaf mines in KS and PA.