Macroscytus honiarensis J.A. LIS

Macroscytus honiarensis J.A. LIS

(Figs 150­156)

Macroscytus honiarensis J.A. LIS, 1993a: 16 , 1995b: 145, 1996: 222.

DESCRIPTION

Body 7.95­8.67 mm in length, 4.16­5.10 mm in width, from dark castaneous to black brown; umbones and posterior margin of pronotum with narrow yellowish brown transverse band; exocorium, clavus and basal part of mesocorium yellow or yellowish brown, the remaining part of mesocorium castaneous or dark castaneous.

Head dorsally polished, sometimes slightly wrinkled and with several small punctures laterally; clypeus without subapical pair of setigerous punctures, each paraclypeus submarginally with a single preocular setigerous puncture (Fig. 151); ocular index 2.30­2.60; interocellar index 4.9­6.3; length of antennal segments (in mm); 0.32­0.40: 0.42­0.46: 0.58­0.66: 0.70­0.81: 0.84­0.94.

Pronotum without transverse discal impression behind calli, pronotal disc with several scattered punctures; lateral margins with 5­6 submarginal setigerous punctures (Fig. 150). Propleuron with numerous distinct punctures.

Scutellum with several punctures in the middle of its disc.

Clavus with one complete and two partial rows of punctures; mesocorium in its basal third punctate with large punctures, remaining two thirds with smaller punctures; exocorium with puncturation denser than that of mesocorium; costa narrow, almost entirely separated from exocorium, costal margin without (Fig. 150) or very rarely with a single setigerous puncture.

Femur from yellowish brown to yellow, bearing dark median stripe; male hind femora with small, sometimes indistinct, subapical spines (Fig. 152); male hind tibia with a few small denticles (Fig. 152).

Abdominal sterna glossy, each with a triangular patch of dense fine punctures posterior to spiracle; areas anterior to and mesad of spiracles with a few punctures; lateral parts of segments additionally irregularly wrinkled.

Male genitalia as in Figs 153­156.

TYPE DATA

Holotype male: Solomon Islands, Guadalcanal I., Honiara ( BMNH) .

MATERIAL EXAMINED

Holotype, 4 paratypes, and 4 other specimens: Bismarck Archipelago: New Britain, Volupai , 1 ex. ( BMH) . Solomon Islands: Guadalcanal I., Honiara , 1 paratype ( BMNH) ; Tulagi , 2 paratypes ( BMNH, UO) ; Guadalcanal, en route Gallego camp, 1 paratype ( BMNH) ; Bougainville, Kukugai Vill ., 3 exx. ( BMH, UO) .

DISTRIBUTION

New Britain (first record), Solomon Islands.