Australian Biological Resources Study

Australian Faunal Directory

<i>Occinirvana eborea</i> Evans, type species of <i>Occinirvana</i> Evans.

Occinirvana eborea Evans, type species of Occinirvana Evans.

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Genus Occinirvana Evans, 1942


Compiler and date details

22 July 2011 - Murray J. Fletcher

 

Introduction

This monotypic genus is the only representative of the Occinirvanini. The head structure, with the crown expansive and the ocelli and antennae placed close to the anterior margin and the face biconcave, is bizarre. The only known species has been collected from Casuarinaceae in the Swan Valley area of Western Australia.

 

Distribution

States

Western Australia


Extra Distribution Information

Australian Endemic.


IBRA and IMCRA regions (map not available)

IBRA

WA: Jarrah Forest (JF), Swan Coastal Plain (SWA)

Diagnosis

The head is produced and spatulate, ventrally concave and dorsally convex. The ante-and frontoclypeus are flat and bordered laterally with deep depressions. The antennae, which are very long, are inserted close to the anterior apical border of the head. The sides of the head on each side are emarginate above the antennae and below the ocelli, and the ocelli are close to the sides of the crown and nearer to the apex than to the eyes. The coronal suture is long and the greater part of the crown consists of the vertex. The pronotum is collar-like and parallel-sided and in the tegmen M1+2 appears to be more than a mere crossvein. The hind tibiae have a row of evenly spaced short strong spines set on enlarged bases, a row of long strong spines, another of short spines and one of hair-like spines (Evans 1942).

 

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 13-Aug-2013 MODIFIED
05-Dec-2019 16-May-2012 MODIFIED
05-Dec-2019 22-Jul-2011 MOVED
12-Feb-2010 (import)