Species Dilacreon (Dilacreon) ispi Löcker, 2010

Dilacreon (Dilacreon) ispi Löcker, adult

© Copyright Birgit Löcker, Orange Agricultural Institute.

Museums

Regional Maps

• Dilacreon (Dilacreon) ispi Löcker, B. in 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 [12].

  Type data:

   Holotype BPBM 17162 ♂ (coll: 14–15.iii.1961, J.L. & M. Gressitt), Holmes Jungle, Palm Cr., 15 km NE of Darwin, 5 m[etres].

Introduction

A pale brown species based on a series of males and females collected in 1961 near Darwin, Northern Territory.

Distribution

States

Northern Territory

IBRA and IMCRA regions

IBRA

NT: Darwin Coastal (DAC)

Ecological Descriptors

Adult: phloem feeder.

Extra Ecological Information

Nymph might be phloem feeder or fungivore.

Diagnosis

Colour. Head, thorax and abdomen light brown. Forewings light brown except for slightly darker crossveins and some slightly darker marks near apex of forewing. Morphology. Body length: ♂ 4.7–4.9 mm; ♀ 4.9–5.2 mm. Head: Vertex 2.2–2.5 times wider than long; with indistinct median carina. Frons 0.9–1.0 times as long as wide; frons distinctly visible in dorsal view. Rostrum just reaching hind coxae. Thorax: Mesonotum with lateral carinae straight or slightly curved (Fig. 5C). Forewing 2.3–2.6 times longer than wide; with about 20–23 tubercles on costa; Sc+R fused, forming common stem Sc+R, M emerging separately from basal cell; Sc+R forking slightly basad or at same level as fork CuA1+CuA2; position of crossvein R-M basad or at same level as fork MA-MP. Male genitalia: Apex of anal tube distinctly asymmetrical in dorsal view; apical lobes rounded; anal style and 11th abdominal segment mostly concealed by lobes of anal tube in lateral view. Genital styles with inner side of basal arm bearing small tooth. Ventromedian process triangular. Aedeagus: Phallotheca dorsally with very short spine directed caudad; right laterally with very long spine; left laterally with very long spine. Flagellum right laterally with moderately long spine about midlength of flagellum.
Remarks. This species can be distinguished from the other two Australian species of Dilacreon by the position of the anal style and 11th abdominal segment, which are mostly concealed by the lobes of the anal tube in lateral view. In D. (D.) granulinervis and D. (D.) akethe large parts of the anal style and 11th abdominal segment are visible in lateral view. (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 [12]

History of changes