Genus Nanexila Winterton & Irwin, 1999

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Genus Nanexila Winterton & Irwin, 1999

Nanexila Winterton, S.L. & Irwin, M.E. in Winterton, S.L., Irwin, M.E. & Yeates, D.K. 1999. Systematics of Nanexila Winterton & Irwin, gen. nov. (Diptera: Therevidae) from Australia. Invertebrate Taxonomy 13: 237-308 [244].
Type species:
Anabarhynchus manni Hardy, 1955 by original designation.

Introduction

Nanexila contains 25 species divided into three species groups (N. manni (Hardy), N. palassa Winterton & Irwin and N. atricostalis Winterton & Irwin species-groups) (Winterton et al. 1999a). Winterton et al. (1999a) originally included 20 species in the genus, with three more species being subsequently transferred to Nanexila by Winterton et al. (1999b) and Metz et al. (2003). The genus is endemic to Australia, and is particularly species rich in the southern part of the continent (Winterton et al. 1999a). Two new species of Nanexila, N. atricauda and N. jimrodmani, were described in 2007 (Winterton 2007b).

Distribution

States

Australian Capital Territory, New South Wales, Northern Territory, Queensland, South Australia, Tasmania, Victoria, Western Australia

IBRA and IMCRA regions (map not available)

IBRA

ACT, NSW, NT, Qld, SA, Vic, WA: Australian Alps (AA), Arnhem Coast (ARC), Arnhem Plateau (ARP), Avon Wheatbelt (AW), Brigalow Belt North (BBN), Brigalow Belt South (BBS), Broken Hill Complex (BHC), Burt Plain (BRT), Central Arnhem (CA), Carnarvon (CAR), Channel Country (CHC), Central Kimberley (CK), Central Mackay Coast (CMC), Coolgardie (COO), Cobar Peneplain (CP), Central Ranges (CR), Cape York Peninsula (CYP), Daly Basin (DAB), Darwin Coastal (DAC), Desert Uplands (DEU), Dampierland (DL), Darling Riverine Plains (DRP), Einasleigh Uplands (EIU), Esperance Plains (ESP), Eyre Yorke Block (EYB), Finke (FIN), Flinders Lofty Block (FLB), Flinders (FLI), Gascoyne (GAS), Gawler (GAW), Gibson Desert (GD), Gulf Fall and Uplands (GFU), Geraldton Sandplains (GS), Great Sandy Desert (GSD), Gulf Coastal (GUC), Gulf Plains (GUP), Great Victoria Desert (GVD), Hampton (HAM), Jarrah Forest (JF), Kanmantoo (KAN), Little Sandy Desert (LSD), MacDonnell Ranges (MAC), Mallee (MAL), Murray Darling Depression (MDD), Mitchell Grass Downs (MGD), Mount Isa Inlier (MII), Mulga Lands (ML), Murchison (MUR), Nandewar (NAN), Naracoorte Coastal Plain (NCP), New England Tablelands (NET), Northern Kimberley (NK), NSW North Coast (NNC), NSW South Western Slopes (NSS), Nullarbor (NUL), Ord Victoria Plain (OVP), Pine Creek (PCK), Pilbara (PIL), Riverina (RIV), Sydney Basin (SB), South East Coastal Plain (SCP), South East Corner (SEC), South Eastern Highlands (SEH), South Eastern Queensland (SEQ), Simpson Strzelecki Dunefields (SSD), Stony Plains (STP), Swan Coastal Plain (SWA), Tanami (TAN), Tiwi Cobourg (TIW), Victoria Bonaparte (VB), Victorian Midlands (VM), Victorian Volcanic Plain (VVP), Warren (WAR), Wet Tropics (WT), Yalgoo (YAL) ; Tas: Tasmanian South East (TSE)

Diagnosis

Diagnostic characters for Nanexila include velutum patches on the fore and hind femora absent, wing cell m3 open, antennae usually shorter than head, frons flat, subapical setae on hind femur present, and three spermathecae joined to the spermathecal duct (Winterton 2007b).