Genus Dysoliarus Fennah, 1949

Museums

Regional Maps

• Dysoliarus Fennah, R.G. 1949. New exotic Fulgoroidea. Annals and Magazine of Natural History 12 2: 585-606 [590].

  Type species:

   Dysoliarus unicornis Fennah, 1949 by original designation.

Introduction

The only known species of Dysoliarus has a distinctive conical projection in the centre of the frontoclypeus. It also has well developed ear-shaped lobes on the pronotum, a diagnostic feature for the subtribe Rhigedanina.

Distribution

States

New South Wales, Queensland, South Australia, Western Australia

IBRA and IMCRA regions

IBRA

NSW, Qld, SA, WA: Brigalow Belt South (BBS), Coolgardie (COO), Cobar Peneplain (CP), Flinders Lofty Block (FLB), Murchison (MUR), NSW South Western Slopes (NSS)

Diagnosis

Morphology. Head. Vertex slightly lowered in relation to the hind margin of the pronotum, not forming a common plane; as long as wide, produced before eyes by 1/2–3/4 of an eye length; apex broadly truncate; caudal border almost straight; lateral carinae slightly elevated (in some ♀♀ strongly elevated); median carina almost complete. Frons bearing prominent apical process; frons 1.1–1.5× longer than wide (excluding apical process), position of maximum width distinctly ventrad or around centre of frontoclypeal suture; lateral carinae double s-shaped, slightly elevated, lateral margins foliaceous, concealing base of antennae. Frontoclypeal suture semicircular, median part reaching at least lower margin of antennal scape; postclypeus with well developed lateral carinae and median carina; anteclypeus with well developed median carina. Thorax. Pronotum with undulating carinae, the latter strongly elevated medially, forming distinct ear-shaped lobes; hind margin rather obtusely angled. Mesonotum with three distinct or evanescent longitudinal carinae. Forewing 3.0–3.5× longer than wide; costa without (rarely with 1–2) tubercles; concavity at costal border present; Sc+R+M forming long common stem; fork of Sc+R distad of fork of CuA1+CuA2; r–m1 basad of fork MA–MP; position of icu at CuP distad of apex of clavus; 10–11 apical cells. Hind leg: tibia with two large lateral spines of unequal length; six apical teeth in row interrupted by a wide gap; 1st tarsomere with 11–14 apical teeth and no platellae; 2nd tarsomere with 25–40 apical teeth and 23–38 platellae. (Löcker et.al. 2006)

ID Keys

Fletcher, M.J., Löcker, B., Larivière, M.C. and Löcker, H. (2006). Illustrated Key to the Australian Genera of the Planthopper Tribe Gelastocephalini  (Hemiptera: Cixiidae:Fulgoromorpha) http://www1.dpi.nsw.gov.au/keys/fulgor/cixiid/gelastocephalini/gel00.htm

Diagnosis References

Löcker, B., Fletcher, M.J., Larivière, M.-C., Gurr, G.M., Holzinger, W.E. & Löcker, H. 2006. Taxonomic and phylogenetic revision of the Gelastocephalini (Hemiptera: Cixiidae). Invertebrate Systematics 20: 59-160 [72]

General References

Löcker, B., Fletcher, M.J., Larivière, M.-C., Gurr, G.M., Holzinger, W.E. & Löcker, H. 2006. Taxonomic and phylogenetic revision of the Gelastocephalini (Hemiptera: Cixiidae). Invertebrate Systematics 20: 59-160 [72]

History of changes