Sciomenida

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Sciomenida Gross, 1976

Photo © Matthew Bulbert, Australian Museum

Type species:

Sciomenida mcfarlandi Gross, 1976 by original designation.

Number of Australian species:

One.

Extralimital Distribution:

No.

Australian Distribution:

Temperate regions; New South Wales, South Australia and Victoria.

Biology:

Unknown.

Host(s):

Aspideurus mcfarlandi associated with Callitris preissi Miq. [CUPRESSACEAE] Native Pine, Callitris sp. [CUPRESSACEAE].

Diagnosis:

Colour

Dorsally and ventrally mottled pale to dark brown with darker punctations. Legs and antennae banded pale and dark brown.

Texture

Densely and uniformly punctate.

Vestiture

Glabrous.

Structure

Body - Elongate-ovoid, dorsally convex. Length 4.0 mm -8.6 mm; width 5.0 mm -6.7 mm.

Head - Subtriangular to subhemispherical, moderately dorsoventrally orientated, shorter than pronotum; jugae equal in length to clypeus, apically rounded, lateral edges carinate; antennifer processes absent; five antennal segments, first antennal segment shorter than distance between the eyes, inserted into head below mid-height but above ventral margin of eyes; bucculae elongate (posteriorly beyond antennifers); vertex cross-sectional shape convex; labium reaching between middle and hind coxae, first labial segment equal in length to bucculae; eyes not stylate, directed laterally.

Pronotum - Calli present; anterior lobe surface flat; humeral angles rounded; lateral margins carinate; anterolateral margins simple and straight to convex; posterolateral margins straight to slightly sinuate; posterior margin straight to marginally concave.

Scutellum - Triangular, broadly rounded; lateral calli present; medial callus absent.

Thoracic sterna - Prosternum flat; mesosternum with low raised keel; metasternum flat.

External efferent system - Evaporative scent gland covering half to most of the metepisternum; peritreme elongate, apically pointed.

Hemelytra - Macropterous, longer than abdomen; membrane veins linear and mostly subparallel.

Legs - Fore tibia sulcate.

Abdomen - Connexiva not visible or only marginally visible dorsally; laterotergites unarmed; abdominal sterna II with an elongate, narrow, anteriorly directed process.