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 trifolii (Burgess) ( Fig. 80 ) Material examined. NORTH CAROLINA : Scotland Co. , Laurinburg , St. Andrews University , 20.v.2018 , em. 4.vi.2018 , T . S. Feldman , ex Mecardonia acuminata , # CSE4579 , CNC1135666–1135670 , CNC1144089 (3♁ 3♀ ) . Hosts. (Note: underlined hosts are from a greenhouse experiment.) Amaranthaceae : Amaranthus palmeri S.Watson , Beta vulgaris L., Chenopodium album L., Spinacia oleracea L.; Amaryllidaceae : Allium cepa L.; Apiaceae : Apium graveolens L., Daucus carota L.; Araliaceae : Hydrocotyle umbellata L., H. verticillata Thunb. ; Asteraceae : Ageratum L. ( Heinz & Parrella 1990 ), [ Ambrosia artemisiifolia L.], “ Aster ” (cultivated), Baccharis halimifolia L. , Bidens alba (L.) DC., B. pilosa L., Callistephus chinensis (L.) Nees, Chrysanthemum × morifolium (Ramat.) Hemsl., Conoclinium coelestinum DC. , [ Cosmos bipinnatus Cav. ], Dahlia Cav. , Erechtites hieraciifolius (L.) Raf. ex DC., Eupatorium capillifolium (Lam.) Small ex Porter & Britton , E. serotinum Michx. , Flaveria trinervia (Spreng.) C.Mohr , Gaillardia aristata Pursh , Galinsoga quadriradiata Ruiz & Pav. , Gamochaeta pensylvanica (Willd.) Cabrera , Gerbera jamesonii Bolus , Helianthus annuus L., Hymenopappus scabiosaeus L’Hér. , Lactuca canadensis L. , L. sativa L., [ Leucanthemum vulgare Lam. ], Melanthera nivea (L.) Small, Mikania scandens (L.) Willd., Packera glabella (Poir.) C.Jeffrey , Parthenium hysterophorus L., “ Senecio ”, Sonchus asper (L.) Hill, S. oleraceus L., Symphyotrichum cordifolium (L.) G.L.Nesom, Synedrella nodiflora (L.) Gaertn., Tagetes erecta L., Taraxacum officinale F.H.Wigg. , Tridax procumbens L., [ Vernonia gigantea (Walter) Trel. ], Xanthium L., Zinnia L.; Caryophyllaceae : Gypsophila L.; Cucurbitaceae : Cucumis melo L., C. sativus L., Cucurbita pepo L., Melothria pendula L.; Fabaceae : Crotalaria incana L., [ Lathyrus japonicus Willd. ], Medicago lupulina L., M. sativa L., Phaseolus lunatus L., P. vulgaris L., Pisum sativum L., Trifolium repens L., Vicia sativa L., Vigna luteola (Jacq.) Benth. , V. radiata (L.) R.Wilczek, V. unguiculata (L.) Walp.; [ Lamiaceae : Glechoma hederacea L.]; Malvaceae : Abelmoschus esculentus (L.) Moench, “ Hibiscus ”, Malva moschata L.; Nyctaginaceae : Abronia villosa S.Watson ; Plantaginaceae : * Mecardonia acuminata (Walter) Small , Plantago major L.; [ Poaceae : Avena sativa L.; Polygonaceae : Fallopia convolvulus (L.) Á.L̂ve, Persicaria maculosa Gray. ]; Ranunculaceae : Ranunculus repens L.; Solanaceae : Capsicum annuum L., Petunia Juss. , Physalis angulata L., P. philadelphica Lam. ( Pérez-Alquicira et al. 2019 ) , P. pubescens L., Solanum americanum Mill. , S. dulcamara L., S. lycopersicum L., S. melongena L., S. nigrum L., S. tuberosum L.; [ Turneraceae : Piriqueta cistoides subsp. caroliniana (Walter) Arbo ]; Verbenaceae : Verbena L. ; Zygophyllaceae : Kallstroemia maxima (L.) Hook. & Arn., Tribulus terrestris L. ( Eiseman & Lonsdale 2018 and references therein; see Lonsdale (2011) for additional host genera recorded outside of North America). Leaf mine. ( Fig. 80 ) Narrow and linear throughout; greenish to whitish, with dark green to black frass, typically in alternating strips or closely spaced grains, but in some cases partially forming a squiggly line. Mines are generally confined to the upper leaf surface, but some mines on Mecardonia were partly formed on the lower surface. Puparium. Yellowish; formed outside the mine. Phenology and voltinism. This species is multivoltine. We have collected larvae on 7 March in southern California , 26 March in Florida , and 20 May and 2 June in North Carolina , with adults emerging in 12–25 days in each case. Distribution. Widespread in North, Central, and South America; introduced in the Old World. Largely restrict- ed to greenhouses in colder temperate regions ( Lonsdale 2011 ). Comments. This is the first record of any agromyzid from Mecardonia Ruiz & Pav.