Genus Rhotidoides Evans, 1937

Museums

Regional Maps

• Rhotidoides Evans, J.W. 1937. Australian Leafhoppers (Jassoidea, Homoptera). Part 5. — Euscelidae (in part). Papers and Proceedings of the Royal Society of Tasmania 1936: 51-71 [59].

  Type species:

   Rhotidoides norfolkensis Evans, 1937 by original designation.

 

Introduction

The five known species of this endemic genus are medium sized (8–9mm) thymbrines with the crown narrow and more or less evenly rounded into the face although lacking the extreme convexity found in Macroceps Signoret and Mitelloides Evans. Further undescribed species are present in collections and the genus is in need of revision. Its distribution is classic Bassian from SW Western Australia and southeastern Australia from SE Queensland to Tasmania.

 

Distribution

States

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

Extra Distribution Information

Australian Endemic.

IBRA and IMCRA regions

IBRA

ACT, NSW, Qld, Tas, Vic, WA: Australian Alps (AA), Brigalow Belt South (BBS), Ben Lomond (BEL), Geraldton Sandplains (GS), Jarrah Forest (JF), King (KIN), New England Tablelands (NET), NSW North Coast (NNC), NSW South Western Slopes (NSS), Sydney Basin (SB), South Eastern Highlands (SEH), South Eastern Queensland (SEQ), Swan Coastal Plain (SWA), Tasmanian Central Highlands (TCH), Tasmanian South East (TSE), Tasmanian Southern Ranges (TSR), Tasmanian West (TWE), Victorian Midlands (VM)

Diagnosis

Head, from below, with anterior margin declivous, lorae wide and the labium reaching to between the middle pair of legs. The frons, which may be somewhat raised above the lorae and clypeus, is slightly convex and the lateral sutures are curved. The antennal ledges, which are straight, form an obtuse angle with the lateral frontal sutures. The hind margin of the frons is distinct and rounded and forms part of a transverse ridge that extends to the eyes on either side. The ocelli are either ventrally placed or on the vertical portion of the vertex, slightly closer to the eyes on each side than to each other and lying above the transverse ridge. The latter is parallel to the hind margin of the head but not to the antennal ledges. The head in profile is evenly rounded and, from above, the crown is wide. The pronotum, which is only slightly longer than the scutellum, is slightly convex. Hind tibiae without any small spines set between the bases of the prominent spines. Male genitalia with the subgenital plates long, wider apically than at the base, and the parameres hook-shaped. The pygophores are narrow and produced apically but with no separate thickened processes (Evans 1937).

 

ID Keys

Fletcher, M.J. (2005) Illustrated Key to the Genera of the Tribe Thymbrini (Hemiptera: Cicadellidae: Tartessinae) http://www1.dpi.nsw.gov.au/keys/leafhop/tartessinae/thym00.htm [accessed: 14.ii.2012]

 

Diagnosis References

Evans, J.W. 1937. Australian Leafhoppers (Jassoidea, Homoptera). Part 5. — Euscelidae (in part). Papers and Proceedings of the Royal Society of Tasmania 1936: 51-71 [59–60]

 

History of changes

Published	As part of group	Action Date	Action Type	Compiler(s)
20-Sep-2011		20-Sep-2011	MOVED
		12-Feb-2010	(import)