Species Chidaea etelis Löcker and Holzinger, 2019

Museums

Regional Maps

• Chidaea etelis Löcker, B. and Holzinger, W.E. 2019. Revision of the Australian planthopper genus Chidaea Emeljanov with a redescription of Cixius sidnicus Stål, 1859 (Hemiptera: Auchenorrhyncha: Fulgoromorpha: Cixiidae). Zootaxa 4691(5): 401–443 [422].
  Zoobank Registration Number:231EE0BB-5698-446C-A060-31807DA80002

  Type data:

   Holotype ASCU ASCTHE016982 ♂ (coll: G.R. Brown, 20.xi.1986), Leeuwin-Naturaliste National Park, Western Australia.

 

Introduction

This is the only species recorded from Western Australia to which state it is endemic.

 

Distribution

States

Western Australia

Extra Distribution Information

Australian Endemic.

IBRA and IMCRA regions

IBRA

WA: Coolgardie (COO), Geraldton Sandplains (GS), Jarrah Forest (JF), Mallee (MAL), Swan Coastal Plain (SWA)

Ecological Descriptors

Adult: phloem feeder.

 

Diagnosis

Colour. Head mid brown or dark brown with pale carinae. Pronotum light brown, often with dark patches. Mesonotum mid brown or dark brown; carinae concolorous or paler; central area of mesonotum (in between carinae) often paler. Forewings light brown or whitish, veins light brown to whitish, concolorous with cells; tubercles dark brown in distinct contrast with light coloured veins. Pterostigma, crossveins and apical parts of veins slightly darker. Legs and body light brown or mid brown (rarely dark brown). Morphology. Body length: ♂ 4.7–5.6 mm; ♀ 5.7–7.2 mm. Head: Vertex 1.9–2.4 x wider than long; median carina of vertex covering about 1/2 to entire length of basal compartment of vertex; absent in apical compartment. Frons 1.0–1.1 x longer than wide; position of maximum width more or less around centre of frontoclypeal suture or slightly dorsad; lateral carinae of frons in facial view convex, rectilinear apically or sinuate, s-shaped. Frontoclypeal suture strongly semicircular, bent upwards, median part reaching at least lower margin of antennal scape. Postclypeus with median carina well developed, sometimes evanescent near anteclypeus. Anteclypeus with median carina well developed or evanescent. Rostrum reaching or surpassing hind coxae. Thorax: Hind margin of pronotum obtusely angled, acutely angled or rectangular. Mesonotum with median carina moderately to weakly developed, evanescent near posterior end; lateral carinae moderately developed. Forewing 3.2–3.7 x longer than wide; concavity at costal border absent; costal margin with 14–19 tubercles; fork of ScP+RA and RP distinctly basad; tubercles of forewing dark, distinctly contrasted to paler coloured veins; ScP+RA apically bifid or unforked; RP bifid or trifid; additional subapical cell between branches of MP1 and MP2 absent; MP1+2 trifid (rarely bifid); MP3+4 bifid or trifid (rarely 4 branches); 11–12 apical cells; 6 subapical cells. Hind leg: tibia with 6 (rarely 5) apical spines; 1st tarsomere with 9–10 apical teeth and 4–5 platellae; 2nd tarsomere with 9 (rarely 10) apical teeth and 7 (rarely 8) platellae. Male genitalia: Phallotheca with spines (a,b) about equal in length and curvature, not reaching bifurcate ventral process. In ventral view spines mostly concealed by phallotheca apart from apical section (1/3 to 1/5 of length of spine visible). Phallotheca in ventral view symmetrical, widest in apical quarter, narrowest in the section between tip of spines and bifurcate ventral process. Bifurcate ventral process situated about half way between base of phallotheca and midlength (Löcker and Holzinger 2019).

 

ID Keys

Löcker and Holzinger 2019: 407–408

 

Diagnosis References

Löcker, B. and Holzinger, W.E. 2019. Revision of the Australian planthopper genus Chidaea Emeljanov with a redescription of Cixius sidnicus Stål, 1859 (Hemiptera: Auchenorrhyncha: Fulgoromorpha: Cixiidae). Zootaxa 4691(5): 401–443 [422–424]

 

History of changes

Published	As part of group	Action Date	Action Type	Compiler(s)
	CIXIIDAE Spinola, 1839	13-Dec-2019	ADDED	Dr Murray Fletcher