Scirtes malayanus Champion, 1918

Yoshitomi, Hiroyuki & Ruta, Rafał, 2010, Revision of the Scirtes flavoguttatus species-group (Coleoptera: Scirtidae: Scirtinae) 2467, Zootaxa 2467 (1), pp. 1-74 : 57-58

Scirtes malayanus Champion, 1918

Figs. 31F , 36 , 45H

Scirtes malayanus Champion, 1918: 267 .

Type material. Holotype, male ( BMNH): “Type H. T.”; “ Perak ”; “ Doherty ”; “ Scirtes malayanus Ch. ”; “Fry Coll. 1905.100”.

Description. Male. Body oblong, slightly convex. Coloration dark brown, antennomeres 1–3 and mouthparts somewhat lighter, yellowish.

Head of moderate size, slightly convex dorsally, covered with deep, dense punctures; clypeus long, expanded antero-laterally, gently arcuate in front margin. Eyes moderate in size, moderately prominent; the distance between the eyes ca. 2.3 times as long as the maximum diameter of the eye. Antennae filiform. Pronotum slightly convex in mesal part of the disk, moderately to densely punctate; antero-lateral angles somewhat acute, slightly projecting anteriorly; front and lateral margins almost straight; postero-lateral angles right-angled; posterior margin slightly subtrapezoidal; PW / PL 2.34 . Scutellum relatively small, moderately punctate, equilateral-triangular. Elytra oblong-oval, widest at the middle, in paratype with more rounded sides, punctation stronger or similar to that on pronotum, dense and deep; humeri elevated; EL/EW 1.28; EL/ PL 4.53 ; EW/ PW 1.52 ; TL/EW 1.56. Legs relatively long. Last abdominal ventrite with a shallow concavity. Tergite VIII moderately sclerotized, trapezoidal, bearing a row of long setae on apical margin, with a pair of long apodemes; tergite IX lightly sclerotized, apical margin arcuate, bearing indistinct setae in apical part, with a pair of stout apodemes diverging posteriorly; sternite IX almost membranous, consisting of two hemisternites, bearing sparse but distinct setae in apical part. Aedeagus symmetrical. Tegmen well sclerotized, connected with penis; basal part semicircular; parameres short, relatively wide, straight in basal portion, only apices incurved, of identical lengths. Penis well sclerotized, short, apex subtriangular, as long as parameres, connected with tegmen in apical part, apex not reaching beyond basal part of tegmen .

Female. Unknown.

Measurements. Male (n = 1): TL 2.93 mm; PW 1.24 mm; PL 0.53 mm; EL 2.40 mm; EW 1.88 mm.

Distribution. Malayan Penins. (Perak).

Notes. Small, uniformly brownish species, externally resembling Scirtes cameroni sp. n. differing in the shape of parameres.

Figures

FIGURE 31. Habitus of Scirtes spp. A) S. balehensis sp. n., holotype, male, B) S. maramagensis Klausnitzer, C) S. sulcigerus Champion, syntype, male, D) S. crassicornis Champion, holotype, male, E) S. patkainus Champion, holotype, male, F) S. malayanus Champion, holotype, male, G) S. cameroni sp. n., holotype, H) S. sabahensis sp. n., holotype, male, I) S. brancuccii sp. n., holotype, male.

FIGURE 36. Scirtes malayanus Champion, holotype, male. A) tergite VIII, B) tergite IX, C) sternite IX, D) tegmen and penis in ventral aspect.

FIGURE 45. Type labels of selected Scirtes spp. A) S. basifasciatus Pic, holotype, B) S. crassicornis Champion, holotype, C) S. curtelineatus Pic, holotype, D) S. curvipes Champion, holotype, E) S. dichrous Champion, holotype, F) S. luteomaculatus Pic, lectotype, G) S. patkainus Champion, holotype, H) S. malayanus Champion, holotype, I) S. rufotinctus Champion, holotype.