Liriomyza taraxaci Hering

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 : 55-56

Liriomyza taraxaci Hering

( Fig. 153 )

Material examined. MASSACHUSETTS: Franklin Co., Northfield , 276 Old Wendell Rd. , 21.viii.2014, em. 4.ix.2014, C.S. Eiseman, ex Taraxacum officinale , #CSE1378, CNC384896 (1♂) ; Hampshire Co., Pelham, Quarry St. , 6.vii.2013, em. 17.vii.2013, C.S. Eiseman, ex Taraxacum officinale , #CSE708, CNC392638 (1♀) .

Hosts. Asteraceae : Lactuca L. ( Scheffer & Lonsdale 2018), Taraxacum officinale F.H. Wigg. ; specimens reared from L. sativa L. in Washington have been tentatively assigned to this species ( Lonsdale 2017). Spencer (1969) reported Cichorium intybus L. as a host based on empty leaf mines.

Leaf mine. ( Fig. 153 ) Upper surface; a rapidly widening serpentine mine, centrally suffused with brown, expanding into a whitish blotch. Frass is in sparsely scattered black grains. The mine of the unconfirmed female specimen had conspicuous feeding lines in the blotch but was otherwise identical.

Puparium. Yellow-orange; formed outside the mine.

Distribution. USA: AK, IL, *MA, NY ( Scheffer & Lonsdale 2018), WA?, WI (leaf mines only); Canada: AB, BC, MB, NB, ON, QC, SK, YT; Europe.

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.