Species Austrorgerius collinus Woodward, 1960

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• Austrorgerius collinus Woodward, T.E. 1960. Studies on Queensland Hemiptera, Part IV. The first record of Orgeninae (Fulgoroidea; Dictyopharidae) from Australia. University of Queensland Papers, Department of Entomology 1(10): 149-156 [151].

  Type data:

   Holotype QM T5766 ♂ (coll.: 19.vii.1959, T.E. Woodward, from Lomandra confertifolia (Juncaceae)), Summit of Mt Tibrogargan, Queensland.

Introduction

This species was described from a series of male and female adults, plus two nymphs, collected from the summit of Mt Tibrogargan, in SE Queensland. It was collected on the mat rush Lomandra confertifolia (Bailey) Fahn (Lomandraceae). Woodward (1960) describes the environment in which the specimens were collected as a volcanic neck rising sharply to almost 1200 feet and having arid zone characteristics quite different from the surrounding coastal plains.

Distribution

States

Queensland

IBRA and IMCRA regions

IBRA

Qld: South Eastern Queensland (SEQ)

Ecological Descriptors

All stages: phloem feeder (associated flora: Lomandra confertifolia (F.M.Bailey) Fahn [LOMANDRACEAE]).

Diagnosis

A small ovoid species a little more than half as wide as long. Size. Length 2.6–2.8 mm. Width 1.4–1.5 mm. Colour. Males above more or less infuscated brown; dorsal carinae and raised veins of tegmina paler; ventral surface and legs more deeply fuscous; eyes more or less infuscated reddish brown. Females above with background colour paler brown than in males, so that dark patches on either side of median carina of head, marginally and in four rows on abdominal terga, are more obvious. Head. Total length 0.67–0.70 mm. Width across eyes 0.72–0.75 mm. Crown 1.2–1.3 times as long as wide at base (0.57–0.63 : 045–0.48 mm); here 3.3–3.9 times as wide as an eye (0.13–0.14 mm). Eye 0.30 mm long. Head process anterior to eyes 0.37–0.40 mm, 0.6–0.8 times as long as entire crown (usually 0.6). Thorax. Pronotum 5.0–5.6 times as wide at base as long in middle (0.97–1.05 mm : 0.18–0.20 mm). Length of mesoscutellum 0.33–0.35 mm. Tegmina reaching on to abdominal tergum III; 0.73–0.82 mm long. Male abdomen and genitalia. Posteror segments ventrally deflected, so that from above (in normally retracted condition of terminalia) the last visible tergum is VII, which posteriorly slopes ventrad; terga VIII and IX facing posteriorly. Median carina most strongly raised on terga VI and VII. Outer lateral carinae obscolescent on tergum VII, and both pairs of lateral carinae obscolescent or absent on terga VIII and IX. Segment IX has form of large, ovoid, ventral plate, with a central ellipsoid opening. Segment X small, not produced into a supragenital anal flap. Claspers nearly rectangular, with inner (dorsal) surface longitudinally grooved where it embraces phallus; lateral (dorsal) margin with a long recurved hook. Theca elongate, slightly curved ventrad toward apex, which is acute. Female abdomen and genitalia. Relationships of abdominal terga and development of carinae as in male. Posterior margin of tergum IX deeply concave, directed postero-ventrally. Segment X short, not produced into a supragenital flap. Sternum VIII membranous except for a median sclerotised region between bases of the large, lobe-like, heavily sclerotised first valvifers, which are conspicuous plates behind sternum VII. First valvulae subtriangular, with long setae basally; semi-membranous except marginally, its thickened dorsal margin with seven teeth, the apical one longest, spine-like, recurved, the second close to it, separated from a row of four, which decrease in size toward base; seventh spine at abouit half-length, curved toward apex. Third valvulae each divided into a triangular, membranous dorsal lobe, normally concealed below anal segment, and a subtriangular, strongly sclerotised ventral lobe with outer surface broadly convex, apex rounded, and mesial margin fringed by long setae; ventral lobe with outer surface broadly convex, apex rounded, and mesial margin fringed by long setae; ventral lobe in repose covering toothed dorsal margin of first valvula and apex contiguous with sternum of anal segment. Second valvulae completely concealed by first and third valvulae; comprising a broad transverse sclerite formed of their fused bases and two partly membranous, narrowly triangular processes widely separated basally but apically converging. (Woodward 1960)

Diagnosis References

Woodward, T.E. 1960. Studies on Queensland Hemiptera, Part IV. The first record of Orgeninae (Fulgoroidea; Dictyopharidae) from Australia. University of Queensland Papers, Department of Entomology 1(10): 149-156 [151]

General References

Woodward, T.E. 1960. Studies on Queensland Hemiptera, Part IV. The first record of Orgeninae (Fulgoroidea; Dictyopharidae) from Australia. University of Queensland Papers, Department of Entomology 1(10): 149-156 [155]

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