Species Dilacreon (Dilacreon) granulinervis (Muir, 1913)

Dilacreon (Dilacreon) granulinervis (Muir), adult

© Copyright Birgit Löcker, Orange Agricultural Institute.

Museums

Regional Maps

• Ptoleria granulinervis Muir, F. 1913. On some new Fulgoroidea. Proceedings of the Hawaiian Entomological Society 2(5): 237-269 [256].

  Type data:

   Lectotype BPBM ♂ (coll: F. Muir), Larat, Timor Laut Islands (792).

  Subsequent designation references:

  Löcker, B., Fletcher, M.J. & Gurr, G.M. 2010. Taxonomic revision of the Australian Eucarpiini (Hemiptera: Fulgoromorpha: Cixiidae) with the description of nine new species. Zootaxa (2425): 1-31 [10].

Generic Combinations

• Dilacreon (Dilacreon) granulinervis (Muir, 1913). —
  Löcker, B., Fletcher, M.J. & Gurr, G.M. 2010. Taxonomic revision of the Australian Eucarpiini (Hemiptera: Fulgoromorpha: Cixiidae) with the description of nine new species. Zootaxa (2425): 1-31 [10]
• Eucarpia granulinervis (Muir, 1913). —
  Fennah, R.G. 1980. The genus Bajauana and two allied new genera in New Guinea (Fulgoroidea: Cixiidae). Pacific Insects 22(3-4): 237-328 [238]

Introduction

This beautifully marked species is one of only two Australian Eucarpiini which are not endemic to the continent. This species was described from eastern Indonesia but seems to be quite common in far North Queensland.

Distribution

States

Queensland

IBRA and IMCRA regions

IBRA

Qld: Cape York Peninsula (CYP)

Other Regions

Torres Strait Islands terrestrial, marine & freshwater

Ecological Descriptors

Adult: phloem feeder.

Extra Ecological Information

Nymph might be phloem feeder or fungivore.

Diagnosis

Colour. Head, pro- and mesonotum light brown with concolorous carinae (some specimens with pale yellow carinae); face with three whitish spots along frontoclypeal suture. Forewing hyaline light brown, sometimes with darker markings, veins concolorous with cells (some specimens with pale carinae); tubercles darker than veins and cells; pterostigma light brown. Fore- and midlegs light brown with mid brown transverse stripes. Hind legs light brown, not striped, but with darkened areas around the apical teeth. Abdominal sternites light brown to mid brown. Morphology. Body length: ♂ 3.9–4.7 mm; ♀ 4.0–4.8 mm. Head: Vertex 1.9–2.4 times wider than long; with distinct median carina. Frons 0.8–1.0 times as long as wide; frons invisible in dorsal view. Rostrum slightly surpassing hind coxae. Thorax: Mesonotum with lateral carinae sinuate. Forewing 2.8–3.0 times longer than wide; with about 23–28 tubercles on costa; Sc+R fused, forming common stem Sc+R, M emerging separately from basal cell; Sc+R forking basad, at same level or distad of fork CuA1+CuA2; position of crossvein R-M at same level as fork MA-MP. Male genitalia: Anal tube more or less symmetrical in dorsal view, apical lobes with pointed tip. Genital styles with inner side of basal arm without tooth. Ventromedian process of pygofer triangular. Aedeagus: Phallotheca ventrally with one triangular and one ovoid shaped, flattened ridge; right laterally with short spine inserted near apex of aedeagus; left laterally with longer spine directed cephalad and very thin spine directed caudad. Flagellum dorsally with short spine; right laterally with longer spine and left laterally with short spine.
Remarks. This species can be distinguished from the other two Australian species by the presence of a pointed tip on the apical lobes of the anal tube (rounded in D. (D.) akethe and D. (D.) ispi), by the presence of a triangular and an ovoid shaped, flattened ridge on the ventral side of the aedeagus (absent in D. (D.) akethe and D. (D.) ispi) and by the absence of a small tooth on the inner side of the basal arm of the genital style.(Löcker et.al. 2010)

ID Keys

Löcker et.al. (2010: 8)

Diagnosis References

Löcker, B., Fletcher, M.J. & Gurr, G.M. 2010. Taxonomic revision of the Australian Eucarpiini (Hemiptera: Fulgoromorpha: Cixiidae) with the description of nine new species. Zootaxa (2425): 1-31 [10]

History of changes