Macroscytus annulipes HORVÁTH, 1919

Macroscytus annulipes HORVÁTH

(Figs 22­28)

Macroscytus annulipes HORVÁTH, 1919: 242 ; FROESCHNER 1967: 17; LIS 1994b: 325, 1995b: 144, 1996: 220.

Macroscytus cheesmanae J.A. LIS, 1993b: 44 (as cheesmani), 1995b: 144 (emend.), syn. n.

DESCRIPTION

Body 7.61­8.83 mm in length, 4.02­4.96 mm in width, pale castaneous to almost black, posterior margin and umbones of pronotum, exocorium, basal part of mesocorium and clavus clearly yellowish brown.

Head dorsally slightly wrinkled in lateral parts of paraclypei; clypeus without a pair of subapical hair­like setae, each paraclypeus submarginally with a single preocular setigerous puncture (Fig. 23); ocular index 2.08­2.36, interocellar index 5.8­7.5; length of antennal segments (in mm): 0.35­0.42: 0.34­0.46: 0.58­ 0.67: 0.68­0.78: 0.74­0.84.

Pronotal disc without or with shallow transverse impression behind calli, dorsal surface of pronotum generally weakly punctate; lateral margins with 3­6 submarginal setigerous punctures (Fig. 22). Propleural depression with distinct large punctures.

Scutellum almost impunctate, bearing only few punctures in its middle.

Clavus with three rows of punctures (one complete and two partial); mesocorium evenly punctate; puncturation of exocorium denser than that of mesocorium; costa narrow, almost entirely separated from exocorium, bearing a single setigerous puncture (Fig. 22).

Legs clearly paler than remaining parts of the body, yellowish brown with broad dark brown stripe on femora; tibia darker near tarsus, spines castaneous, tarsi yellowish brown; hind tibiae with neither denticles nor emargination on inner margin, hind femora with a few small teeth (Fig. 24).

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

Male genitalia as in Figs 25­28.

TYPE DATA

Lectotype male (designated by LIS, 1999c: 207) of Macroscytus annulipes HORVÁTH : New Guinea, Friedrich­Wilhelmshafen [= Madang ] ( HNHM) .

Holotype male of Macroscytus cheesmanae J.A. LIS : Papua New Guinea, Kokoda ( BMNH) .

MATERIAL EXAMINED

Lectotype of Macroscytus annulipes , Holotype of Macroscytus cheesmanae , 17 paratypes of Macroscytus cheesmanae , and 54 other specimens: Bismarck Archipelago: 2 exx. ( MNHN) ; New Britain, Volupai , 1 ex. ( BMH) . Papua New Guinea: Kokoda, 16 paratypes of M. cheesmanae ( BMNH, UO) ; Madang District, Finisterre Mts., Moro , 1 paratype of M. cheesmanae : ( BMNH) ; Madang Province, Nagada Harbour , 51 exx. ( OXUM) .

DISTRIBUTION

Bismarck Archipelago (Mussau, New Britain), Papua New Guinea.

REMARKS

Personal examination of the type material of M. annulipes allowed to treat M. cheesmanae as a junior synonym of the former. Figures 10 and 11 in the paper on New Guinean species of Macroscytus ( LIS, 1993b: 45) actually represent M. annulipes (not M. astrolabicus ).