Macroscytus pfeifferi SIGNORET

Macroscytus pfeifferi SIGNORET

(Figs 244­250)

Macroscytus pfeifferi SIGNORET, 1883a: 468 ; LETHIERRY & SEVERIN 1893: 71; LIS 1994a: 224.

DESCRIPTION

Body 10.67­12.17 mm in length, 6.02­6.32 mm in width, almost black, corium brownish black.

Head dorsally impunctate; clypeus as long as paraclypei, without subapical setigerous punctures, each paraclypeus submarginally with a single preocular setigerous punctures (Fig. 245); ocular index 1.66­2.08; ocelli large, interocellar index 5.5­8.7; length of antennal segments (in mm): 0.43­0.55: 0.56­0.70: 0.85­ 1.13: 1.09­1.25: 1.15­1.35.

Pronotal disc with well visible puncturation; transverse discal impression behind calli present, accompanied by a row of coarse punctures; lateral margins with 4­6 submarginal setigerous punctures (Fig. 244). Propleuron punctate, anterior convexity dulled by numerous tiny punctures, depression and posterior convexity with larger punctures.

Scutellum sparsely punctate, its basal part and apex impunctate.

Corium distinctly punctate with punctures smaller than those on pronotum and scutellum; clavus with one complete and one partial row of punctures; mesocorial disc almost evenly punctate; costa moderately convex, almost entirely separated from exocorium, bearing 1­2 setigerous punctures (Fig. 244).

Male hind femora with large subapical tooth on dorsal margin, and numerous small teeth on the ventral (Fig. 246); hind tibiae with small subbasal tubercles (Fig. 246); female hind femora with small conspicuous subapical tooth on dorsal margin, hind tibiae without tubercles.

Abdominal sterna alutaceous, slightly wrinkled; sterna V­VII with patches of tiny punctures posterior and anterior to spiracle, sternum III and sometimes also sternum IV with very few punctures anteriorly of the spiracle.

Male genitalia as in Figs 247­250.

TYPE DATA

Lectotype female (designated by LIS 1994a: 225): Borneo ( NHMW) .

MATERIAL EXAMINED

Lectotype, and 11 other specimens: Indonesia: North Sumatra, Bivonac One, Mt. Bandahara , 9 exx. ( NNML, UO) . Malaysia: Borneo, Sarawak, Semongok , 1 ex. ( UO) . Vietnam: Tonkin, Montes Mauson , 1 ex. (NhMW) .

DISTRIBUTION

Borneo, Sumatra, Vietnam.