Australian Biological Resources Study

Australian Faunal Directory

<i>Chidaea belairensis</i> Löcker and Holzinger. A. <i>habitus</i>, B-D: head.

Chidaea belairensis Löcker and Holzinger. A. habitus, B-D: head.

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Species Chidaea belairensis Löcker and Holzinger, 2019


Compiler and date details

16 December 2019 - Murray J. Fletcher

 

Introduction

This species is only known from two male and two female specimens from the type locality. The specimens have been stored, at least for part of their time since collection, in ethanol and therefore may have faded in colour. The wings are also somewhat damaged.

 

Distribution

States

South Australia


Extra Distribution Information

Australian Endemic.


IBRA and IMCRA regions (map not available)

IBRA

SA: Flinders Lofty Block (FLB)

Ecological Descriptors

Adult: phloem feeder.

 

Diagnosis

Colour. Head mid brown or dark brown with pale carinae. Pronotum light brown, with darker patches. Mesonotum mid brown, carinae concolorous or slightly paler. Forewings light brown, tubercles and veins concolorous light brown. Legs and body light brown. Morphology. Body length: ♂ 3.9–4.0 mm; ♀ 4.7–4.9 mm. Head: Vertex 2.0–2.5 x wider than long; median carina of vertex covering about 1/4–1/2 of basal compartment of vertex; absent in apical compartment. Frons 0.8 x longer than wide; position of maximum width more or less around centre of frontoclypeal suture; lateral carinae of frons in facial view sinuate, s-shaped. Frontoclypeal suture strongly semicircular, bent upwards, median part reaching at least lower margin of antennal scape. Postclypeus with median carina evanescent. Anteclypeus with median carina evanescent or absent. Rostrum reaching hind coxae. Thorax: Hind margin of pronotum acutely angled or rectangular Mesonotum with median carina weakly to moderately developed; lateral carinae weakly developed, evanescent or absent. Forewing 3.3 x longer than wide; concavity at costal border absent; costal margin with about 17 tubercles; fork of ScP+RA and RP basad or slightly distad of fork CuA1 and CuA2; tubercles of forewing dark or pale, concolorous with veins; ScP+RA apically unforked; RP bifid; MP1+2 trifid; MP3+4 bifid; 10 apical cells; 6 subapical cells. Hind leg: tibia with 6 apical spines; 1st tarsomere with 10 apical teeth and 5 platellae; 2nd tarsomere with 9 apical teeth and 7 platellae. Male genitalia: Phallotheca almost transparent, slightly asymmetrical, wider in basal two thirds, narrower in apical third; with a bifurcate ventral process near base of phallotheca; laterodorsally with two very long, slightly curved to almost straight spines (a,b), reaching or surpassing base of bifurcate ventral process. In ventral view phallotheca concealing all of spine (a) and most of spine (b), only about 1/8 of spine is visible. Spine (a) in right lateral view with its tip curved slightly dorsal (Löcker and Holzinger 2019).

 

ID Keys

Löcker and Holzinger 2019: 407–408

 

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)
CIXIIDAE Spinola, 1839 13-Dec-2019 ADDED Dr Murray Fletcher