Scirtes luteomaculatus Pic, 1935

Yoshitomi, Hiroyuki & Ruta, Rafał, 2010, Revision of the Scirtes flavoguttatus species-group (Coleoptera: Scirtidae: Scirtinae) 2467, Zootaxa 2467 (1), pp. 1-74 : 14-16

Scirtes luteomaculatus Pic, 1935

Figs. 1 , 2B , 4D–E , 8 , 45F

Scirtes luteomaculatus Pic, 1935: 644 .

Type material. Lectotype (present designation), male ( BMNH): “B.N. BORNEO. Mt. Kinabalu , Lumu Lumu, 5500 ft., April 8 th 1929.”, on reverse: “ H. M. Pendlebury, coll. F.M.S. Museums. ”, “Brit.Mus. 1937- 197.”, “ Scirtes luteomaculatus n sp”, “-----” illegibly handwritten by Pic. Paralectotype (present designation), sex unknown ( MHNH): “B. N. BORNEO. / Mt. Kinabalu, / Kamborangah, / 7000 ft. / Mar 29th 1929 ” on reverse: „ H. M. Pendlebury / coll. / F.M.S. Museums. ”; “ Scirtes / luteomaculatus / n sp” . Lectotype is designated from series of syntypes of Scirtes luteomaculatus Pic in order to preserve the stability of nomenclature by selecting one specimen as the sole, name-bearing type of the taxon.

Additional material studied. 4 males ( USMB): “BORNEO Sabah, Crocker Mt. 500-1900 m, Gunung Emas , 6- 21.05.1995, leg. J. STOLARCZYK” . 2 males ( DBET): “ MALAYSIA – Sabah prov., Banjaran Crocker Mts. , GUNUNG ALAB peak, 30.IV.-27. V.1996, 1650- 1800m, M. Štrba & R. Hergovits leg.” . 24 males ( BMNH): same data as above . 2 males ( BMNH): “ MALAYSIA, Sabah 1993, 50 km E Kota Kinabalu, Crocker Mts. Gg. Emas, 16-27.4, leg. I. Jenis ” . 1 male ( BMNH): same data as above, leg. Strba & Jenis ; 1 male ( ITBC), “ Gn. Alab., Tambunan, Sabah, BORNEO 25. V. 2008 H. Takizawa leg.” ; 1 male ( ITBC), same data as above, 15-16. I. 2008 ; 1 male ( ITBC), “Kinabalu Park, HQ Ranau, Sabah BORNEO 27. VII. 2007 H. Takizawa leg.” .

Description. Male. Body oblong, slightly convex, shining, covered with brown setae. Coloration of head, antennomeres 1–3, pronotum, scutellum and legs yellowish-brown, hind legs are infuscate; antennomeres 4– 11 and mouthparts slightly darkened, brownish; elytra dark brown, but anterior margin, surrounding parts of scutellum and suture yellowish-brown. Each elytron with three transverse maculate areas; anterior ones consisting of five oval small spots, situated in basal 1/4; middle ones consisting of five small oval spots, situated just behind the middle of elytra; posterior spots circular, situated in apex.

Head moderate in size, slightly convex in dorsal surface, finely punctate; clypeus long, expanded anterolaterally, gently arcuate in front margin. Eyes moderate in size, prominent; the distance between the eyes ca. 1.9 times as long as the maximum diameter of an eye. Antennae filiform, reaching ca. proximal 1/4 of elytra. Pronotum slightly convex above in mesal part of the disk, finely punctate; antero-lateral corners almost acute, projecting anteriorly; front and lateral margins gently arcuate; postero-lateral corners right-angled; posterior margin slightly bisinuate; PW/PL 2.11–2.75 (2.31). Scutellum relatively small, finely punctate, equilateral-triangular. Elytra oblong-oval, widest at the middle, closely punctate; humeri elevated; EL/EW 1.36–1.63 (1.45); EL/PL 4.44–5.44 (4.98); EW/PW 1.33–1.57 (1.47); TL/EW 1.65–1.94 (1.76). Legs long. Hind tibial spurs long, dorsal spur almost straight, ventral spur curved; dorsal spurs ca. 2.1 times as long as ventral ones, ca. 0.7 times as long as hind tarsomere 1. Tergite VIII moderately sclerotized, trapezoidal, bearing a row of setae on apical margin, with a pair of long and stout apodemes; tergite IX lightly sclerotized, apical margin arcuate, bearing minute spines in apical part, with a pair of stout apodemes; sternite IX almost membranous, bearing dense setae in apical part. Aedeagus asymmetrical. Tegmen well sclerotized, connected with penis; basal part semicircular; parameres long and large, of different lenghts, the longer one is straight with outwardly hooked apex, almost as long as basal part, the shorter one is distinctly outwardly arcuate. Penis well sclerotized, simply lobed, as long as parameres of tegmen, connected with tegmen in apical part, not exceeding basal part of tegmen.

Female. Unknown.

Measurements. Lectotype: TL 4.25 mm; PW 1.60 mm; PL 0.70 mm; EL 3.55 mm; EW 2.45 mm. Males (n = 21): TL 4.40–5.45 (4.88) mm; PW 1.60–2.21 (1.89) mm; PL 0.65–0.93 (0.82) mm; EL 3.55–4.60 (4.06) mm; EW 2.40–3.25 (2.78) mm.

Distribution. Borneo Isl. (Sabah).

Notes. Sharing features of Scirtes maxi sp. n. (yellow pronotum with only slightly darkened disc, relatively small body). Differs from Scirtes teruhisai sp. n. (anterior elytral band consisting of oval spots). Certain identification possible on the basis of morphology of aedeagus with one of parameres hooked.

Figures

FIGURE 1. Mouthparts of Scirtes luteomaculatus Pic, male. A) mandible, B) maxilla, C) labium.

FIGURE 2. Abdominal segments. A) sternites III–VII of Scirtes schawalleroides sp. n., B) tergite VII of Scirtes luteomaculatus Pic.

FIGURE 4. Habitus of Scirtes spp. A) S. flavoguttatus Champion, B) S. decemnotatus Champion, C) S. septemmaculatus sp. n., D) S. luteomaculatus Pic, lectotype, E) S. luteomaculatus Pic, F) S. teruhisai sp. n., G) S. maxi sp. n., holotype, H) S. schawalleri sp. n., I) S. schawalleroides sp. n.

FIGURE 8. Scirtes luteomaculatus Pic, male. A) sternites V–VII, B) tergite VIII, C) tergite IX, D) sternite IX, E) 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.