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.

Published as part of 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, pp. 1-156 in Zootaxa 4479 (1) on pages 55-56, DOI: 10.11646/zootaxa.4479.1.1, http://zenodo.org/record/1452913