Liriomyza limopsis Lonsdale

(Figs. 144–145)

Material examined. MASSACHUSETTS: Berkshire Co., Becket, 7.viii.2015, em. 20–22.viii.2015, C.S. Eiseman, ex Oclemena acuminata, #CSE2012, CNC654246 (1♀) ; Franklin Co., Northfield, King Philip’s Hill, 30.v.2015, em. 17.vi.2015, C.S. Eiseman, ex Eurybia divaricata, #CSE1610, CNC564672 (1♂) ; Wendell, 19.vii.2016, em. 31.vii–3.viii.2016, C.S. Eiseman, ex Oclemena ×blakei, #CSE2826, CNC638891–638896 (3♂ 3♀) ; Hampshire Co., Pelham, Butter Hill, 25.vi.2014, em. 10.vii.2014, C.S. Eiseman, ex Eurybia divaricata, #CSE1168, CNC384891 (1♀) ; NEW YORK: Essex Co., Upper Jay, by Ausable River, East Branch, 2.vi.2012, em. by 23.vi.2012, C.S. Eiseman, ex Oclemena acuminata (1♂) .

Hosts. Asteraceae: Eurybia divaricata (L.) G.L. Nesom, Oclemena acuminata (Michx.) Greene, O. *×blakei (Porter) G.L. Nesom.

Leaf mine. (Figs. 144–145) Greenish to whitish, turning brown; a gradually expanding, irregular mine with concentric feeding lines (these tending to be more distinct on Eurybia), presenting an intestine-like appearance. Some mines are compact, forming a secondary blotch, and some are more spread-out and serpentine in form. Frass is in dark grains, streaks, and irregular lumps, rather sparse on Oclemena.

Puparium. Yellow-orange to brown; formed outside the mine.

Distribution. USA: MA, NY; Canada: NS, ON, QC. We have seen probable mines of this species in ME and OH.