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 Phytomyza astotinensis Griffiths Material examined. MASSACHUSETTS : Worcester Co ., Rutland , 42.381206 , -71.964980 , 9.vi.2018 , em. 24.vi.2018 , J.A. Blyth , ex Solidago rugosa , # CSE4689 , CNC1135714 (1♁). Hosts. Asteraceae : Solidago canadensis L., S. flexicaulis L. (tentatively identified specimens), S. gigantea Aiton , S. latissimifolia Mill., S. * rugosa Mill. ( Eiseman & Lonsdale 2018 ) . We have seen leaf mines likely referable to this species on S. altissima L. and S. macrophylla Banks ex Pursh. Leaf mine. Whitish, on the upper surface, narrow and linear throughout; frass typically in fine particles, mostly forming short beaded strips, but in some cases mostly deposited in an erratic jumble of squiggly fragments, rarely appearing as straight strips for a very short stretch ( Eiseman & Lonsdale 2018 ). Puparium. Black; formed outside the mine. Phenology and voltinism. As discussed by Eiseman & Lonsdale (2018) , this species is thought to be univoltine in Alberta , where larvae collected in early August and late September emerged as adults the following spring, but it is at least bivoltine in Massachusetts , where larvae collected between 9 and 12 June emerge as adults by the end of the month, larvae collected in late July have yielded tentatively identified females in mid-August, and larvae of the overwintering generation have been collected in early October. Distribution. USA : MA, WI?; Canada : AB ( Eiseman & Lonsdale 2018 ). We have found leaf mines likely referable to this species in IA and MI.