Phytomyza vomitoriae Kulp
Creators: name: Eiseman, Charles S.
name: Lonsdale, Owen
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Agromyzidae
Phytomyza
Phytomyza vomitoriae

description: Phytomyza vomitoriae Kulp
Material examined. OKLAHOMA: Payne Co., Stillwater, International Trade Center, 22.iii.2016, em. 27.iii.2016, M.W. Palmer, ex Ilex vomitoria, #CSE2658, CNC654322 (1♀); em. 2.iv.2016, #CSE2649, CNC654323–654325 (2♂ 1♀).
Host. Aquifoliaceae: Ilex vomitoria Aiton.
Leaf mine. Upper surface; initially narrow and linear, widening into a blotch. Frass frequently appears as a dark brown central band that nearly fills the channel, leaving a narrow, whitish margin. In Texas we have found examples that begin with a distinct spiral (adults not reared).
Puparium. Brownish-yellow, formed within the mine, with the anterior spiracles projecting through the upper leaf surface.
Distribution. USA: CA, FL, GA, LA, MS, NC, *OK; leaf mines also observed in AL, SC, and TX (Lonsdale & Scheffer 2011).
Phytomyza ziziae spec. nov.
(Figs. 60–61, 216, 394–397)
Holotype. MASSACHUSETTS: Hampshire Co., Middlefield, 28.ix.2014, em. 20–22.x.2014, C.S. Eiseman, ex Zizia aurea, #CSE1436, CNC384887 (1♂).
Paratypes. ALBERTA: Scotford Sandhills, 5 miles NW of Bruderheim, on Zizia aptera, E184, leg. G.C.D. Griffiths, larva collected 7.vii.1973, emerged 23.vii.1973 (1♂ 1♀, UASM), emerged 2.viii.1973 (1♂, UASM); MASSACHUSETTS: Berkshire Co., Cheshire, Mt. Greylock Visitors' Center (42.552705, -73.212335), 18.vi.2016, em. 3.vii.2016, C.S. Eiseman, ex Zizia aurea, #CSE2695, CNC654247 (1♀); Windsor, 10.viii.2015, em. by 13.ix.2015, C.S. Eiseman, ex Zizia aurea, #CSE2052, CNC564620 (1♂); same collection as holotype, CNC384886 (1♂).
Etymology. The specific epithet refers to the host plant, Zizia W.D.J. Koch.
Hosts. Apiaceae: Zizia aptera (A. Gray) Fernald, Z. aurea (L.) W.D.J. Koch.
Leaf mine. (Fig. 216) Whitish, upper surface, serpentine; becoming irregularly blotchy. Frass is in scattered black grains.
Puparium. (Fig. 61) Dark brown; formed outside the mine (sometimes loosely attached to the leaf surface, as in Fig. 216); humped anteriorly and tapering posteriorly.
Distribution. USA: MA; Canada: AB.
Adult description. Wing length 2.0– 2.2mm (♂), 2.6mm (♀). Eye height divided by gena height: 3.8–4.5. First flagellomere rounded, with slightly longer hairs anterodorsally. Orbital plate weakly defined. Posterior ocelli slightly displaced. Notum lightly pruinose. Vein dm-cu absent.
Chaetotaxy: Two ors (posterior ors absent to 2/3 length), two ori (anterior ori ½–2/3 length or absent). Ocellar and postvertical setae subequal to ors. Four strong dorsocentral setae, decreasing in length anteriorly. Acrostichal setulae in two, but sometimes three, scattered rows.
Coloration: (Fig. 60) Setae dark brown. Head brown to beige in base color; ocellar spot slightly larger than tubercle, dark brown; posterior margin of head (confluent with ocellar spot) darker brown; posterolateral corner of frons dark brown to base of inner vertical, continuing along orbital plate as stripe that narrows anteriorly but thickens lateral to base of fronto-orbitals; antenna dark brown; inner margin of orbital plate yellowish; clypeus, palpus and back of head dark brown; face irregularly brown. Body dark brown with brownish-gray pruinosity that is more coppery on notum, almost bluish presuturally; postpronotum, notopleuron and supra-alar region usually paler with blotchy yellowish mottling. Calypter margin dirty white, hairs brown. Haltere yellow. Legs dark brown with femora narrowly light yellow apically, spot nearly inconspicuous on hind leg and as long as wide on fore leg; base of tibiae slightly paler. Abdomen dark brown.
Genitalia: (Figs. 394–397) Surstylus very small, rounded, fused to epandrium. Phallophorus very short, dorsally fused to right sclerite of basiphallus. Basiphallus composed of two dark, narrow sclerites, left sclerite with base wrapped around shaft. Hypophallus large, dark, U-shaped, lateromedially with one pair of minutely serrated carinae. Paraphallus membranous, but thickened and band-like, extending from apex of basiphallus to ventromedial margin of mesophallus; only sclerotized in small, dark patch adjacent to mesophallus. Mesophallus length slightly more than twice width, base swollen and rounded with sclerotized ventromedial patch. Distiphallus fused to mesophallus, split between two partially fused tubules approximately as long as mesophallus, clear, with outer subapical sclerotized band. Ejaculatory apodeme small, stem and blade reduced; sperm pump with weak, irregular mottling near duct.
Comments. See comments for Phytomyza hatfieldae.
description: 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 91-92, DOI: 10.11646/zootaxa.4479.1.1, http://zenodo.org/record/1452913