Species Neodialineura trichidion Winterton, 2009

Neodialineura trichidion Male

© Copyright Shaun Winterton via Morphbank

Neodialineura trichidion Female

© Copyright Shaun Winterton via Morphbank

Museums

Regional Maps

• Neodialineura trichidion Winterton, S.L. 2009. Revision of the stiletto fly genus Neodialineura Mann (Diptera: Therevidae): an empirical example of cybertaxonomy. Zootaxa 2157: 1-33 [26].

  Type data:

   Holotype ANIC MEI025271 adult ♂ (12.xi.1987, at Leptospermum flowers, M.E. Irwin, E.I. Schlinger), WA: 10 km SE Hwy 1 on Wheat River Road.
  Paratype(s) UCDC MEI024058, MEI024061, MEI024075, MEI024079-80, MEI024088 2 adult ♂, 4 adult ♀ (23.xii.1979, R.M. Bohart), WA: Leeuwin Naturalist National Park, Cape Naturaliste, Yallingup, Yallingup Caves [33.650°S, 115.033°E]; ANIC MEI025019 adult ♂ (20.xi.1987, M.E. Irwin), WA: Stirling Range National Park, Stirling Range, Gold Holes [34.433°S, 118.067°E]; UCDC MEI025234 adult ♀ (31.x.1979, R.M. Bohart), WA: Toodyay [31.583°S, 116.417°E]; CAS MEI025255-6, MEI025259, MEI025263, MEI025266, MEI025283, MEI025286-8 6 adult ♂, 3 adult ♀ (12.xi.1987, at Leptospermum flowers, M.E. Irwin, E.I. Schlinger), WA: 10 km SE Hwy 1 on Wheat River Road; MCZ MEI080308 adult (23.x.1969, H.E. Evans, R.W. Matthews), WA: Tammin [31.640°S, 117.480°E].

Distribution

States

Western Australia

IBRA and IMCRA regions

IBRA

WA: Avon Wheatbelt (AW), Esperance Plains (ESP), Jarrah Forest (JF)

Diagnosis

Head. Frons and occiput pubescence grey with orange suffusion, rarely silver-grey with dark brown markings; frons flat in profile, wholly pubescent, male frontal vestiture with patch of short setae above antennae, rarely with extensive covering of elongate (often dense) setae; female frontal vestiture with short to moderate length setae; male frons width at narrowest point narrower than anterior ocellus but not contiguous; male postocular setae as single row immediately laterad of ocellar tubercle; postocular setae black; parafacia without setae; antennal scape equal length to flagellum, cylindrical; scape densely covered with large, dark setae; flagellum orange-yellow. Thorax. Scutum pubescence uniform grey-tan or grey-tan with brown markings; pleuron with silver-grey pubescence; katatergite setae uniform pale; coxae pale, overlain with silver-grey pubescence, setae mostly pale; femora uniform yellow, vestiture uniform short dark setae (female), or admixed with longer pale setae on fore and mid femora (male); tibia and tarsi colour dark yellow with apicies brown; wing pale orange infuscate along costal margin; haltere uniform pale orange. Scutal chaetotaxy (pairs): notopleural 3, supra alar 1, post alar 1, dorsocentral 4–8, scutellar 1. Abdomen. Male abdomen base colour darkish, obscured by silver extensive velutum abdominal tergites 2–7; vestiture mostly elongate pale setae laterally; female abdominal markings with posterior segments dark brown, anterior pale or variable, usually with pale patch medially on tergite 2, intersegmental membrane distinctly pale coloured, well defined.

History of changes