Species Notuchus oresbios Donaldson, 1988

Museums

Regional Maps

• Notuchus oresbios Donaldson, J.F. 1988. Further studies on Asiracinae (Homoptera: Delphacidae) in Australia and New Caledonia. Journal of the Australian Entomological Society 27: 133-141 [134].

  Type data:

   Holotype QM T.10912 ♂ (coll.: 29.iv-2.v.1983, rainforest, sieved litter, 1560 m, G.B. Monteith, D.K. Yeates), summit TV station, Bellenden Ker Range, N Queensland.

Introduction

A small cryptic species found in berlesates and sieved leaf litter at the top of Mt Bellenden Ker and Mt Bartle Frere in North Queensland.

Distribution

States

Queensland

IBRA and IMCRA regions

IBRA

Qld: Wet Tropics (WT)

Diagnosis

Colour. Mostly uniformly light to very dark brown with dorsal carinae and longitudinal veins of tegmen smooth and shining. Abdominal tergites mottled in some light specimens. Lateral areas of head, antennae, rostrum, apical half of coxae, legs, pygofer and ovipositor often paler. Head. Vertex elevated and acutely rounded apically, extending anterior to eyes 0.9–1.4 times length of an eye, total length in midline 1.3–1.6 times length anterior to eyes and 0.7–-0.85 times width at base, widest just behind anterior margins of eyes; lateral margins raised and slightly converging basally; posterior margin transverse, carinate; anterolateral carinae strongly raised, extending from anterior ends of lateral margins to apex, slightly convex in dorsal view, moderately to strongly convex in lateral view; marginal carina just visible dorsally near eyes, situated well ventral to anterolateral carinae; Y-shaped carina strong, arms ca 0.5 times length of basal stem. Frons concave, broadly triangular; length in midline 0.9–1.1 times greatest width, this at or just below antennal bases, slightly concave in lateral view; sublateral carinae extending from just apical of greatest width to meet marginal carina ca 0.25–0.33 from inner ends; mediolateral carinae very strong and elevated in basal fifth, positioned about midway between lateral margins and midline, apical ends slightly curved inwards to meet apical margin ca halfway from midpoint to outer ends; median area narrowly triangular, length in midline 1.7–2.2 times greatest width, median carina absent. Antennal segment one 1.9–3.0 times as long as wide with dorsal longitudinal ridge and anterior face somewhat flattened; segment two 0.75–0.95 times length of segment one, slightly expanded apically. Thorax. Pronatal carinae very strong, median carina in lateral view straight except at ends. Mesonotal carinae very strong, median carina in lateral view strongly convex. Tegmen. Subquadrate, reaching abdominal tergite 4, posterior margin transverse to slightly concave; venation coarsely reticulate, some strong longitudinal veins present; claval suture absent. Abdomen. Tergites 4–8 strongly carinate medially, mediolateral carinae strong on tergites 4–7, weak on tergite 8. Anal segment of ♂ ca as long as wide, collar-like. Pygofer with lateral angles acute, ventral margin broadly rounded to truncate. Genital styles in ventral view broad basally then narrowed (width of apical half ca half that of basal portion), contiguous in basal half then smoothly diverging before converging in apical quarter, apices rounded and not quite meeting. Dimensions. ♂ body length 3.1–4.7 mm, length of tegmen 1.2–1.4 mm; ♀ body length 4.5–5.5 mm, length of tegmen 1.3–1.6 mm. (Donaldson 1988)

ID Keys

Donaldson 1988: 133

Diagnosis References

Donaldson, J.F. 1988. Further studies on Asiracinae (Homoptera: Delphacidae) in Australia and New Caledonia. Journal of the Australian Entomological Society 27: 133-141 [135]

History of changes