Agromyza diversa Johnson

Eiseman, Charles S. & Lonsdale, Owen, 2018, New state and host records for Agromyzidae (Diptera) in the United States, with the description of thirty new species, Zootaxa 4479 (1), pp. 1-156 : 9

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.

Figures

FIGURES 1–6. 1. Agromyza diversa Johnson, adult male. Figure 2: puparia; A. isolata Malloch (left), A. albitarsis Meigen (right). Figures 3–4: A. fission spec. nov.; 3: adult male; 4: empty puparia. Figures 5–6: A. soka spec. nov.; 5: adult male; 6: puparium.

FIGURES 63–74. leaf mines; 63: Agromyza albitarsis Meigen in Populus balsamifera; 64: A. ambrosivora Spencer in Helianthus annuus; 65: A. aristata Malloch in Ulmus rubra; 66: A. bispinata Spencer in Elymus hystrix; 67: A. diversa Johnson in Laportea canadensis; 68: A. fission spec. nov. in Celtis occidentalis; 69: A. idaeiana Hardy in Geum macrophyllum; 70: A. isolata Malloch in Populus balsamifera, young mines (left) with probable A albitarsis mine at leaf margin; 71: same Populus balsamifera leaf with completed mines, A. isolata to left of midrib and probable A. albitarsis to right; 72: A. parca Spencer in Dichanthelium clandestinum; 73: A. pseudoreptans Nowakowski in Urtica dioica; 74: A. pudica in Dichanthelium scoparium.