Thirteen new species of Agromyzidae (Diptera) from the United States, with new host and distribution records for 32 additional species Author Eiseman, Charles S. Author Lonsdale, Owen 0000-0001-7034-3330 onsdale@agr.gc.ca Author Linden, John Van Der 0000-0003-2651-0634 johnbvdl@gmail.com Author Feldman, Tracy S. 0000-0001-5939-6810 feldmants@sa.edu Author Palmer, Michael W. 0000-0003-1452-2152 mike.palmer@okstate.edu text Zootaxa 2021 2021-02-17 4931 1 1 68 journal article 7424 10.11646/zootaxa.4931.1.1 d63cab47-63f1-4fdc-9209-26a256c91ccb 1175-5326 4545337 88CF2B0D-E02B-46E1-9F52-1B95F717FC8F Liriomyza orilliensis Spencer ( Fig. 78 ) Material examined. IOWA : Winneshiek Co. , Decorah , Twin Springs Park , 24.viii.2017 , em.?, J. van der Linden , ex Prenanthes alba , # CSE4644 , CNC1144028 ( 1♀ ) . Photographed mines. MASSACHUSETTS : Franklin Co., Northfield, 276 Old Wendell Rd., 7.x.2015 , C.S. Eiseman, Nabalus altissimus [aborted/predated mines]; Nantucket Co., Squam Swamp, 8.ix.2019 , C.S. Eiseman, Nabalus trifoliolatus ; MICHIGAN : Ingham Co., Okemos, Ted Black Woods, 19.vi.2019 , C.S. Eiseman, Nabalus ; NORTH CAROLINA : Guilford Co., Browns Summit, Haw River State Park, 29.v.2015 , T .S. Feldman, Prenanthes alba [vacated mine], BG 1075103; VERMONT : Chittenden Co., Williston, Mud Pond, 28.viii.2016 , C.S. Eiseman, Nabalus [vacated mines]. Hosts. Asteraceae : Nabalus * albus (L.) Hook., [ N. altissimus (L.) Hook., N. trifoliolatus Cass. ], Taraxacum F.H.Wigg. ( Eiseman & Lonsdale 2018 ) . Leaf mine. ( Fig. 78 ) Pale greenish to whitish, turning brownish; in some cases beginning as an irregular track, gradually expanding to an elongate blotch, with frass mostly in squiggly strips; in others, forming a more or less compact blotch with distinct secondary feeding lines, and with frass mostly in fine grains. Two or three larvae may feed together. Puparium. Yellow to brown; formed outside the mine. Phenology and voltinism. Data from the few known specimens of this species indicate it is at least bivoltine. Larvae collected in Massachusetts in mid-June emerged as adults in early July ( Eiseman & Lonsdale 2018 ); a larva collected in Alberta in early August emerged as an adult the following spring ( Lonsdale 2017a ); and the Iowa specimen emerged on an unknown date from a larva collected in late August. Distribution. USA : *IA, MA, [MI, NC, VT]; Canada : AB, ON ( Eiseman & Lonsdale 2018 ).