Species Chidaea wilarra Löcker and Holzinger, 2019

Museums

Regional Maps

• Chidaea wilarra 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 [433].
  Zoobank Registration Number:49CCCC44-4D5F-4EB8-865B-460910583956

  Type data:

   Holotype ASCU ASCT00180039 ♂ (coll: C.E. Chadwick, 16.xi.1958), Barren Grounds, New South Wales.

 

Introduction

This species, known from the very southern parts of the Sydney Basin bioregion, is generally pale with a slight reddish brown tinge.

 

Distribution

States

New South Wales

Extra Distribution Information

Australian Endemic.

IBRA and IMCRA regions

IBRA

NSW: Sydney Basin (SB)

Ecological Descriptors

Adult: phloem feeder.

 

Diagnosis

Colour. Entire specimen with a reddish brown tinge. Vertex mid or dark brown with slightly paler carinae. Frons mid brown, slightly darker near frontoclypeal suture; carinae concolorous or only slightly paler. Post- and anteclypeus darker than frons, dark brown to black with concolorous carinae. Pronotum light brown to reddish brown. Mesonotum slightly darker than pronotum, mid brown with concolorous carinae. Forewings light brown, tubercles and veins concolorous light brown. Legs and body light brown. Morphology. Body length: ♂ 5.9–6.6 mm. Head: Vertex 2.2–2.3 x wider than long; median carina of vertex covering 1/3–3/4 of basal compartment of vertex; absent in apical compartment. Frons 1.0–1.1 x longer than wide; position of maximum width distinctly dorsad of centre of frontoclypeal suture; lateral carinae of frons in facial view convex, rectilinear apically or convex, evenly rounded. Frontoclypeal suture strongly semicircular, bent upwards, median part just or just not reaching lower margin of antennal scape. Postclypeus with median carina well developed. Anteclypeus with median carina moderately developed or evanescent. Rostrum reaching hind coxae. Thorax: Hind margin of pronotum obtusely angled or rectangular. Mesonotum with median carina moderately developed, evanescent near posterior end; lateral carinae moderately developed. Forewing 3.3–3.5 x longer than wide; concavity at costal border absent; costal margin with 24–25 tubercles; fork of ScP+RA and RP basad of fork CuA1 and CuA2; tubercles of forewing dark or pale, concolorous with veins; ScP+RA apically bifid or unforked; RP trifid; additional subapical cell between branches of MP1 and MP2 absent; MP1+2 and MP3+4 trifid; 12 apical cells; 6 subapical cells. Hind leg: tibia with 6 apical spines; 1st tarsomere with 8 apical teeth and no platellae; 2nd tarsomere with 10 apical teeth and 8 platellae. Male genitalia: Phallotheca narrow, near base with a bifurcate ventral process on a prominent stalk that is strongly curved in lateral view; phallotheca left laterally with a medium sized, strongly curved (sickle-shaped) spine (a) that is partly concealed by the phallotheca in ventral view; phallotheca with a slightly longer, strongly curved (sickle-shaped) spine (b) that arises ventro-laterally. Aedeagal spines not reaching bifurcate ventral process (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 [433–435]

 

History of changes

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