Scirtes cameroni Yoshitomi & Ruta, 2010

Yoshitomi, Hiroyuki & Ruta, Rafał, 2010, Revision of the Scirtes flavoguttatus species-group (Coleoptera: Scirtidae: Scirtinae) 2467, Zootaxa 2467 (1), pp. 1-74 : 59-60

Scirtes cameroni Yoshitomi & Ruta , sp. n.

Figs. 31G , 37

Type material. Holotype ( DBET): 1 male, “MALAYSIA-W; PAHANG, 35 km SEE IPOH, 1500m; Cameron Higlands , 4°28’N, 101°23’E, TANAH RATA, 21-24 IV 2001, M. Riha leg.” . Paratype ( DBET): same data as holotype .

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 (only antennomeres 1–4 present in studied specimens). 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 2.40–2.42 (2.41). 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 1.36–1.38 (1.37); EL/PL 4.63–4.70 (4.67); EW/PW 1.40–1.43 (1.42); TL/EW 1.65–1.67 (1.66). 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, inwardly curved, of identical lengths. Penis well sclerotized, short, apex subtriangular, slightly shorter than parameres, connected with tegmen in apical part, apex not reaching beyond basal part of tegmen.

Female. Unknown.

Measurements. Male (n = 2): TL 2.85 & 2.93 mm; PW 1.21 & 1.25 mm; PL 0.50 & 0.52 mm; EL 2.35 & 2.41 mm; EW 1.73 & 1.75 mm.

Distribution. Malayan Penins. (Pahang).

Etymology. This species is named after William Cameron, who discovered the Cameron Highlands plateau during a mapping expedition in 1885.

Notes. Small, uniformly brownish species, externally resembling Scirtes sabahensis sp. n., differing in denser punctation of dorsum. Parameres incurved, penis very short, shorter than parameres. Resembling Scirtes malayanus Champion , differing in the shape of parameres, which are distinctly curved.

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 37. Scirtes cameroni sp. n., holotype, male. A) tergite VIII, B) tergite IX, C) sternite IX, D) tegmen and penis in ventral aspect.