Genus Diemoides Evans, 1938

Museums

Regional Maps

• Diemoides Evans, J.W. 1938. Australian Leafhoppers (Homoptera: Jassoidea): Part VIII. Papers and Proceedings of the Royal Society of Tasmania 1938: 1-18 [13].

  Type species:

   Diemoides smithtoniensis Evans, 1938 by original designation.

 

Introduction

This is an endemic Australian genus with nine described species distributed over most of the eastern seaboard from Tasmania to the islands of Torres Strait. Many species are distinctively marked with colourful bands, often with red or orange on the head and thorax. The type species, D. smithtoniensis Evans, is found in the SE corner of the continent and Tasmania. Diemoides was synonymised with the Palaearctic/Oriental genus Paralimnus Matsumura by Evans (1966) but reinstated by Day & Fletcher (1994).The genus was revised by Fletcher (2017).

 

Distribution

States

New South Wales, Queensland, Tasmania, Victoria

Extra Distribution Information

Australian Endemic.

IBRA and IMCRA regions

IBRA

NSW, Qld, Tas, Vic: Australian Alps (AA), Brigalow Belt North (BBN), Cape York Peninsula (CYP), NSW North Coast (NNC), Sydney Basin (SB), South East Coastal Plain (SCP), South East Corner (SEC), South Eastern Highlands (SEH), South Eastern Queensland (SEQ), Tasmanian Central Highlands (TCH), Tasmanian Northern Slopes (TNS), Tasmanian South East (TSE), Tasmanian Southern Ranges (TSR), Tasmanian West (TWE), Wet Tropics (WT) ; NSW, Tas, Vic: King (KIN)

Other Regions

Torres Strait Islands terrestrial, marine & freshwater

Diagnosis

The ventral surface of the head is evenly convexly rounded, the antennal pits are shallow and the apical margin of the head is broad. The ocelli, which are on the upper border of the apical margin, are well in front of the eyes but closer to the eyes on each side than to each other. The dorsal surface of the head is arrow-shaped, the coronal suture is distinct and the width of the crown is greater than that of the eyes. The pronotum, of which the anterior margin is almost straight between the eyes, is narrow laterally and the propleurae separate the eyes from the bases of the tegmina. The tegmina have narrow appendices and the anal veins are fused medially. The hind tibiae have a few very minute spines set between the bases of each of the largest spines (Evans 1938).

Medium sized leafhoppers, narrow in build. Antennae long. Anterior margin of head usually with fine transverse lines. Tegmen with reflexed costal veins. Male pygofer lacking accessory process. Male connective lacking apical paraphyses at apex of stem which is articulated with base of aedeagus (Fletcher 2017).

 

ID Keys

Fletcher 2017: 312

 

Diagnosis References

Evans, J.W. 1938. Australian Leafhoppers (Homoptera: Jassoidea): Part VIII. Papers and Proceedings of the Royal Society of Tasmania 1938: 1-18 [13]

Fletcher, M.J. 2017. Revision of the genus Diemoides Evans with description of eight new species (Hemiptera: Auchenorrhyncha: Cicadellidae: Deltocephalinae). Entomologica Americana 122(3): 311–325 [Dated 2016 but published April 2017] [312]

 

General References

Day, M.F. & Fletcher, M.J. 1994. An annotated catalogue of the Australian Cicadelloidea (Hemiptera: Auchenorrhyncha). Invertebrate Taxonomy 8: 1117-1288

Evans, J.W. 1966. The leafhoppers and froghoppers of Australia and New Zealand. Memoirs of the Australian Museum 12: 1-347

Fletcher, M.J. 2017. Revision of the genus Diemoides Evans with description of eight new species (Hemiptera: Auchenorrhyncha: Cicadellidae: Deltocephalinae). Entomologica Americana 122(3): 311–325 [Dated 2016 but published April 2017]

 

History of changes

Published	As part of group	Action Date	Action Type	Compiler(s)
05-Dec-2019	Deltocephalinae Dallas, 1870	20-Apr-2017	MODIFIED	Dr Murray Fletcher
05-Dec-2019		13-Aug-2013	MODIFIED
05-Dec-2019		16-May-2012	MODIFIED
05-Dec-2019		05-Aug-2011	MODIFIED
		12-Feb-2010	(import)