Macroscytus borneensis J.A. LIS

Macroscytus borneensis J.A. LIS

(Figs 87­93)

Macroscytus borneensis J.A. LIS, 1994a: 215 .

DESCRIPTION

Body 8.95­12.05 mm in length, 4.70­6.08 mm in width, from castaneous to almost black, corium usually more brownish than pronotum and scutellum.

Head dorsally with numerous evenly spaced and almost invisible tiny punctures; clypeus without subapical pair of setigerous punctures, each paraclypeus with a single preocular submarginal setigerous puncture (Fig. 88); ocular index 1.73­2.38; interocellar index 5.7­8.4; length of antennal segments (in mm): 0.45­ 0.52: 0.52­0.68: 0.81­0.97: 0.99­1.29: 1.18­1.32.

Pronotum with transverse discal impression behind calli deep and distinct only laterally, bearing numerous punctures; anterior lobe of pronotal disc with a patch of punctures behind head and several punctures laterally, posterior lobe with numerous scattered punctures; lateral margins with 3­5 submarginal setigerous punctures (Fig. 87). Propleural depression and posterior convexity with large punctures, anterior convexity dulled by numerous tiny punctures.

Scutellum distinctly punctate, except anterolateral angles; apex with a few small punctures.

Clavus with one complete, and 1­2 partial rows of punctures; mesocorium almost evenly punctate; exocorium almost impunctate; punctures on corium smaller than those on pronotum and scutellum; costa narrow, almost entirely separated from exocorium, bearing 1­2 setigerous punctures (Fig. 87).

Hind femora with numerous small teeth on ventral margin, and distinct subapical tooth on the dorsal (Fig. 89); male hind tibia with several well visible tubercles on inner margin (Fig. 89).

Abdominal sterna wrinkled laterally, and with tiny punctures anterior and posterior to spiracles; segmental sutures with tiny punctures.

Male genitalia as in Figs 90­93.

TYPE DATA

Holotype male: Malaysia, North Borneo, Samarang, Nr Sandakan ( BMNH) .

MATERIAL EXAMINED

Holotype, 24 paratypes, and 7 other specimens: Brunei: Ulu , Temburong, 2 paratypes ( BMNH, UO) . Malaysia: Malaya, Kuala Lumpur , 17 paratypes ( BMNH, UO) ; Malay Peninsula, Selangor, Bukit Kutu , 1 paratype ( BMNH) ; Sarawak, Kuching , 1 paratype ( BMNH) ; Sabah nr Long Pa Sia , 1 paratype ( NNML) ; Sabah, Beaufort , 2 paratypes ( NNML) ; Borneo, Sabah , 5 exx. ( MNHN, UO) ; Sabah, Sipitang, Mendolong , 2 exx. ( MZLU) .

DISTRIBUTION

Brunei, Malaysia (Malaya, Borneo).