Species Holgus unispinosus Löcker & Larivière, 2006

Holgus unispinosus Löcker & Larivière, holotype

© Copyright Birgit Löcker. Orange Agricultural Institute.

Museums

Regional Maps

• Holgus unispinosus Löcker, B. & Larivière, M.-C. in 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 [117].

  Type data:

   Holotype ANIC ♂ (coll: W. Dressler, P. Zborowski, beating open forest along creek), Rocky Creek crossing, N. Queensland [12°06'S 142°34'E].

Introduction

A small pale brown species with clear wings, based on a single male specimen from far North Queensland. Löcker et al. (2006) raised the possibility that this species was not a true Holgus but further data, particularly using molecular characters, are needed to clarify its relationship with other species in the genus.

Distribution

States

Queensland

IBRA and IMCRA regions

IBRA

Qld: Cape York Peninsula (CYP)

Ecological Descriptors

Adult: phloem feeder.

Extra Ecological Information

Nymph might be phloem feeder or fungivore.

Diagnosis

Colour. Vertex pale yellow, apical part light brown; face yellow; pronotum pale yellow in central part, darker in lateral parts; mesonotum light to mid brown; forewing hyaline colourless, pterostigma and cell adjacent to pterostigma pale yellow to whitish, some apical cells with brown tinge, veins pale yellow, tubercles mid brown. Morphology. Body length. ♂ 4.6 mm. Head. Vertex 1.2× longer than wide; apex broadly rounded (almost pointed); lateral carinae strongly elevated; median carina incomplete, less than 1/4 as long as vertex. Lateral carinae of frons moderately elevated; median carina complete. Anteclypeus lacking median carina. Thorax. Pronotum with sinuate carinae; hind margin rectangular. Forewing more than 4× longer than wide; costa with 14–16 tubercles; fork of Sc+R distad of fork of CuA1+CuA2; 10 or 12 apical cells. Hind leg: tibia with 0–1 small lateral spines (without large lateral spines); 1st tarsomere with seven apical teeth and no platellae; 2nd tarsomere with eight apical teeth and six platellae. Male genitalia. Genital styles with inner side of basal arm bearing small tooth. Aedeagus: phallotheca with a single, long, slightly curved spine arising ventrally near apex; flagellum unarmed. (Löcker et al. 2006)

ID Keys

Löcker et al. 2006: 115

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 [117]

History of changes