Lysilinga parkeri Webb 2006, spec. nov.
Creators: name: Webb, Donald W.
name: Metz, Mark A.
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Therevidae
Lysilinga
Lysilinga parkeri

description: <i>Lysilinga parkeri</i> Webb spec. nov. (Figs. 368, 378, 388, 398, 408, 418, 428, 438, 446, 449) <i>Etymology</i> This species is a patronym named for Dr. F. D. Parker, who has collected many therevids in Mesoamerica. <i>Diagnosis Lysilinga parkeri</i> is taxonomically associated with <i>L. recta</i> in possessing setae on the katepisternum and in lacking dorsocentral macrosetae. <i>Lysilinga parkeri</i> differs from <i>L. recta</i> in having the male ommatidia homogeneous in size; the surface of the male frons not distinctly raised; the wing membrane pale smoky brown, darker apically; anteroventral macrosetae present on the foreleg; posteroventral macrosetae present on the hindleg; and the apex of the distiphallus broadly curved ventrally (Fig. 438). <i>Description of holotype male</i> (MEI 101131). Body length 7.0 mm. <b>Head.</b> Length 0.90 mm. Ommatidia of homogeneous size. Frons gray; setae black. Antenna/head length 0.80; scape and pedicel black, pruinescence gray, flagellum dark brown; scape length 0.30 mm, width 0.14 mm, length/width 2.1, scape/pedicel length 3.8, scape/flagellum width 0.88, setae black; pedicel length 0.08 mm, length/width 0.6; first flagellomere oval, attenuate apically, flagellum length 0.34 mm, 0.16 mm wide, length/ width 2.1, flagellum/scape length 1.1. Parafacial pruinescence gray. Maxillary palpus dark yellowish brown; length 0.28 mm, length/width 4.7; setae pale yellow. Genal setae white. Occipital setae white becoming pale gold, lanceolate, appressed dorsally. Postocular macrosetae dark reddish brown. <b>Thorax.</b> Macrosetae dark reddish brown, 3 np, 2 sa, 1 pa, 0 dc, 2 sc. Mesonotum black; setae black intermixed with white, lanceolate, appressed setae. Pleuron black, pruinescence gray; setae white on propleuron (pale dirty yellow dorsally), anepisternum, katepisternum, laterotergite, metanepisternum, and scutellum. <i>Wing.</i> Membrane pale smoky brown, darker apically; veins brown; length 4.8 mm, length/width 3.2; pterostigma brown; cell m 3 closed, petiolate. Halter dark brown. <i>Legs.</i> Coxal macrosetae dark reddish brown. Forefemur dark reddish brown, dark yellow apically, middle femur dark yellowish brown, glossy, hind femur dark yellowish brown, basal and apical fourth dark yellowish brown; ventral setae white; av 1:0:6, pv 0:0:3. Tibiae dark yellowish brown. Tarsomeres 1–2 dark yellowish brown; 3–5 brown. <b>Abdomen.</b> Black, pruinescence white, dense; dorsal setae white elongate, appressed; lateral setae white, erect. <i>Terminalia</i>. Tergite 8 and epandrium (Fig. 368), setae dark reddish brown. Hypoproct (Fig. 368) quadrate, posterior margin emarginate, ending distal to apex of cercus; setae dark reddish brown. Gonocoxite ventral view (Fig. 378), basal half quadrate, posteromedial lobe rounded, then emarginate before tapering apically to narrow, sinuate projection; setae dark reddish brown with patch of short setae posteromedially; dorsal view (Fig. 388) gonocoxal bridge moderately large; lateral view (Fig. 398) broad, oval, tapering apically to broad point; ventral lobe (Fig. 378) with ventral spines. Gonostylus (Fig. 408), basodorsal lobe large, broadly pointed; ventral margin angulate, setae dark yellow; fine, short spines apicoventrally. Aedeagus with dorsal apodeme (Fig. 418) oval, sides rounded; ventral apodeme (Fig. 428) tapered anteriorly with ventral carina, not extending to anterior margin of dorsal apodeme; distiphallus dorsal view (Fig. 418) short, broad basally, tapered apically, lateral view (Fig. 438) broadly curved ventrally, subapical hood short, pointed; ejaculatory apodeme dark yellow (Fig. 418), anterior half expanded laterally, not extending beyond anterior margin of dorsal apodeme, anterior margin emarginate, in cross­section flattened dorsoventrally with dorsal carinas. Variation (n=7). Body length 5.5–6.2, 5.9 mm. <b>Thorax.</b> Macrosetae 3 np, 2 sa, 1 pa, 0 dc, 2 sc. <i>Legs.</i> Anteroventral macrosetae 1–2:0:8–12, pv 0:0:4–9. <i>Female</i> Similar to male except for following. Variation (n=5). Body length 5.4–6.8, 6.1 mm. <b>Head.</b> Frons brownish gray, whitish silver dorsolateral to antennal base; setae dark brown over entire frons. <b>Thorax.</b> Macrosetae 3 np, 2 sa, 1 pa, 0 dc, 2 sc. <i>Legs.</i> Anteroventral macrosetae 1–2:0:6–10, pv 0:0:5–7. <b>Abdomen.</b> Dark reddish brown, glossy, pruinescence gray posterolaterally on tergites 2–6, tergites 4–6 with posterolateral yellowish orange area; dorsal setae dark reddish brown, appressed with white, elongate, appressed setae across posterior margin of tergites 2–4; lateral setae dark reddish brown. <i>Terminalia</i> (MEI 101135). Furca (Fig. 446) quadrate; length 0.34 mm, width 0.20 mm; posteromedial lobe short, cone­shaped, anterolateral and anteromedial projection short. Common duct (Fig. 446) longer than furca. Spermathecal ducts (Fig. 446) directed anteriorly, sac­like posteriorly then becoming thread­like anteriorly. <i>Distribution Lysilinga parkeri</i> is known from Mexico (Fig. 449). <i>Habitats and phenology</i> Adults of <i>Lysilinga parkeri</i> have been collected in a Malaise trap from 12 February to 19 March. <i>Specimens examined</i> <i>Type specimen.</i> The holotype male of <i>Lysilinga parkeri</i> Webb (MEI 101111) is labeled " MEXICO, Jalisco, Careyes 12 Feb– 19 Mar 1997, F. D. Parker " and is deposited in the USNM. <i>PARATYPES.</i> <b>MEXICO. JALISCO</b>. Careyes [19.433, ­105.033], 12–II–19.III.1997, FDP, 7&amp;male; MEI 101093, 101111, 101254, 101322, 121640 (EMUS), 101131 (MEIC), 101151 (INHS), 5&amp;female; 101101, 101208, (EMUS), 101135 (MEIC), 101277 (INHS), 101355 (USNM), Malaise trap.
description: Published as part of <i>Webb, Donald W. &amp; Metz, Mark A., 2006, A Revision of the New World Genera Brachylinga Irwin and Lyneborg and Lysilinga Irwin and Lyneborg (Diptera: Therevidae: Therevinae) with the Description of a New Genus, Elcaribe Webb, pp. 1-241 in Zootaxa 1288 (1288)</i> on pages 229-231