Liriomyza pilicornis Lonsdale

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 : 53

Liriomyza pilicornis Lonsdale

( Fig. 148 )

Material examined. MASSACHUSETTS: Hampshire Co., Belchertown , Scarborough Brook Conservation Area , 8.vi.2013, em . 26.vi.2013, C.S. Eiseman, ex Comandra umbellata , #CSE611, CNC481466 (1♂); same collection data, em. 2014? [found dead on 25.vi.2015], #CSE1649, CNC564679, CNC564680 (1♂ 1♀).

Hosts. Comandraceae : Comandra umbellata (L.) Nutt., Geocaulon lividum (Richardson) Fernald ( Lonsdale 2017) .

Leaf mine. ( Fig. 148 ) On Comandra , the mine is whitish to greenish, visible on both leaf surfaces; to some degree interparenchymal. The mine is initially linear or irregularly serpentine, becoming more or less blotchlike when complete. Frass is in sparse, discrete grains. In one example the initial linear portion was primarily on the upper surface but the final blotch (including all visible frass) was more visible on the lower surface.

Puparium. Yellow-orange; formed outside the mine.

Distribution. USA: AK, MA; Canada: AB, BC, MB, NS, ON, QC.

Figures

FIGURES 144–153. leaf mines; 144: Liriomyza limopsis Lonsdale in Eurybia divaricata; 145: L. limopsis in Oclemena acuminata; 146: L. orilliensis Spencer in Prenanthes sp.; 147: same, detail of frass; 148: L. pilicornis Lonsdale in Comandra umbellata; 149: L. pistilla Lonsdale in Melampyrum lineare; 150: L. ptarmicae de Meijere in Artemisia vulgaris; 151: L. sativae Blanchard in Astragalus cicer; 152: L. smilacinae Spencer in Maianthemum canadense; 153: L. taraxaci Hering in Taraxacum officinale.