Australian Biological Resources Study

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Genus Tumocerus Evans, 1942


Compiler and date details

13 October 2011 - Murray J. Fletcher

 

Introduction

This small genus of two species is endemic to the arid southern parts of Western Australia.

 

Distribution

States

Western Australia


Extra Distribution Information

Australian Endemic.


IBRA and IMCRA regions (map not available)

IBRA

WA: Avon Wheatbelt (AW), Coolgardie (COO), Esperance Plains (ESP)

Diagnosis

The maxillary plates are narrow and the lora and anteclypeus are flat and depressed below the swollen frontoclypeus; the eyes are large. The crown is wide and more or less at rightangles to the face though forming part of one curved surface with it. The sutures that limit the frontoclypeus posteriorly may be distinct or indistinct. The pronotum narrows laterally and the bases of the tegmina lie close behind the eyes. The tegmina have wide appendices and the crossvein that represents M 1+2 is considerably longer than is usual. The hind tibiae are short and have two strong spines set on enlarged bases in addition to several weak spines. The subgenital plates in the male are wide apically, the parameres are short and the pygophores are not produced (Evans 1942).

This genus can be distinguished by the relatively long and wrinkled vertex, the ocelli often visible from above, the strongly incurved lateral margins of the face, the tumid clypeus and the wrinkled scutellum (Webb 1983).

 

ID Keys

Webb 1983: 4–6

 

History of changes

Note that this list may be incomplete for dates prior to September 2013.
Published As part of group Action Date Action Type Compiler(s)
05-Dec-2019 30-Nov-2011 MODIFIED
12-Feb-2010 (import)