Species Oliarus acuminatus Muir, 1924

Oliarus acuminatus Muir, adult

© Copyright Birgit Löcker, Orange Agricultural Institute.

Museums

Regional Maps

• Oliarus acuminatus Muir, F. 1924. New Malayan species of Oliarus Stål (Cixiidae: Homoptera). Philippine Journal of Science 24: 509-529 [524].

  Type data:

   Holotype BPBM ♂ (coll:, x.1907, F. Muir), Larat Island, Indonesia.

Introduction

Löcker et.al. (2006) grouped this species and O. globosus Löcker together as the "acuminatus group" which share the following features: Fork of Pcu+A1 distinctly basad of centre of clavus; aedeagus configuration (i.e. with a long spine (a) arising right lateral near apex, passing the phallotheca ventrally, crossing over to the dorsal side apically). Oliarus acuminatus was described from Larat Island in Indonesia but has extensive distribution in the Northern Territory and far North Queensland.

Distribution

States

Northern Territory, Queensland

IBRA and IMCRA regions

IBRA

NT, Qld: Arnhem Plateau (ARP), Cape York Peninsula (CYP), Darwin Coastal (DAC), Gulf Plains (GUP), Pine Creek (PCK)

Ecological Descriptors

Adult: phloem feeder.

Extra Ecological Information

Nymph might be phloem feeder or fungivore.

Diagnosis

Colour. Vertex light brown; face light brown, lateral margins paler, anteclypeus darker, frons lateral with a pale mark; pronotum light brown; mesonotum light to mid brown; legs light brown; forewing hyaline colourless with brown marks along crossveins, veins light brown, apically darker, tubercles concolorous with veins, pterostigma mid brown to dark brown; abdominal sternites light brown. Morphology. Body length: ♂ 5.2–6.4 mm, ♀ 6.4–7.3 mm. Head: Vertex (total length) 2.9–3.9 times longer than wide; basal emargination acutely angled or rectangular. Postclypeus with well-developed median carina. Rostrum reaching or not reaching hind coxae. Thorax: Hind margin of pronotum obtusely angled. Mesonotum with evanescent or well-developed carinae. Forewing 3.0–3.2 times longer than wide; costa without tubercles; 9 apical cells. Male genitalia: Anal tube in caudal view with a triangular process. Aedeagus: Phallotheca with a long spine arising right lateral near apex, passing phallotheca ventrally, crossing over to dorsal side apically; a short spine; and two long spines dorsal. Flagellum membranous, unarmed. (Löcker et.al. 2006)

ID Keys

Löcker et.al. (2006: 22)

Diagnosis References

Löcker, B., Fletcher, M.J., Larivière, M.-C. & Gurr, G.M. 2006. The Australian Pentastirini (Hemiptera: Fulgoromorpha: Cixiidae). Zootaxa 1290: 1-138 [28]

History of changes