Macroscytus astrolabicus HORVÁTH

Macroscytus astrolabicus HORVÁTH

(Figs 45­51)

Macroscytus astrolabicus HORVÁTH, 1919: 242 ; LIS 1994b: 322 & 325, 1995b: 144, 1996: 220.

Macroscytus annulipes , not of HORVÁTH: LIS 1993b: 45, figs 10 & 11.

DESCRIPTION

Body 7.57­8.12 mm in length, 4.25­4.46 mm in width, head, pronotum and scutellum from blackish brown to black, hemelytra castaneous or dark castaneous, entirely umbones and extreme posterior margin of pronotum clearly yellowish brown.

Head dorsally with numerous hardly visible tiny punctures, paraclypei striated and wrinkled, impunctate or bearing single clearly visible punctures; clypeus without a pair of subapical hair­like setae, each paraclypeus with two submarginal setigerous punctures (Fig. 46); ocular index 2.65­2.80, interocellar index 3.0­4.0; length of antennal segments (in mm): 0.37­0.42: 0.43­0.49: 0.52­0.55: 0.68­0.72: 0.83­0.85.

Pronotal disc without transverse impression behind calli, its surface punctate with small punctures behind head and in lateral parts, and with large punctures behind calli; lateral margins with 4­5 submarginal setigerous punctures (Fig. 45). Anterior convexity of propleuron with punctures only in its apical part, posterior convexity punctate only basally, propleural depression with a row or band of large coarse punctures.

Scutellar disc with a patch of few large punctures in its median part.

Clavus with two clearly visible rows of punctures (one long and one short); mesocorium sparsely punctate; exocorium with dense puncturation; costa narrow, almost entirely separated from exocorium, bearing a single setigerous puncture (Fig. 45).

Legs clearly paler than remaining body parts, yellowish brown with broad dark brown stripe on femora; each tibia getting darker towards tarsus, the latter yellowish brown; male hind tibiae with a row of very small tubercles on inner margin, male hind femora with a row of well visible small teeth on dorsal margin (Fig. 47); female hind tibiae simple, female hind femora with a row of small teeth on dorsal margin.

Abdominal sterna smooth and polished, with punctures close to sutures; each segment laterally wrinkled and bearing a triangular patch of dense fine punctures anterior and posterior to spiracle.

Male genitalia as in Figs 48­51.

TYPE DATA

Lectotype male (present designation): N. Guinea, Biró 1901; Mt Hansemann , Astrolabe B.; astrolabicus det. Horváth ; Lectotype Macroscytus astrolabicus Horv. , labelled by R.C. Froeschner ̕59 ( HNHM) .

MATERIAL EXAMINED

Lectotype, and 3 other specimens: Bismarck Archipelago: 1 ex. ( UO) ; Papua New Guinea: NE Morobe, Wau , 2 exx. ( BMH) .

DISTRIBUTION

Bismarck Archipelago (first record), Papua New Guinea.