Orthogonius coomanioides Tian, Deuve & Felix

Tian, Mingyi, Deuve, Thierry & Felix, Ron, 2012, Orthogonius species and diversity in Thailand (Coleoptera, Caraboidea, Orthogoniini), a result from the TIGER project, ZooKeys 164, pp. 51-90 : 53-55

Orthogonius coomanioides Tian, Deuve & Felix sp. n. Figures 317

Diagnosis.

Medium sized, even elytra intervals wider than odd intervals, but less than twice as wide; similar to Orthogonius coomani Tian & Deuve, 2006, but a little larger, darker, and broader than the latter; in addition, head and eyes rather smaller and less prominent; middle tibiae strongly curved (not distinctly curved in Orthogonius coomani ); aedeagus stouter, and apical lamella distinctly broader than that of Orthogonius coomani .

Length: 13.0-14.0 mm; width: 6.5-6.7 mm. Habitus as in Figure 3.

Description.

Head and pronotum densely and intricately wrinkled, impunctate, microsculptural meshes densely isodiametric on head, pronotum and elytra.

Head moderate, slightly longer than wide, eyes rather small, less prominent, labrum distinctly emarginate at frontal margin, sexsetose, clypeus bisetose; palpi normal; mentum and submentum each with a pair of setae; palpiger asetose; antennae extended to the shoulders of elytra, densely pubescent from antennomere 4.

Pronotum strongly transverse, PW/PL=1.70-1.72, widest a little before middle; both fore and hind angles broadly rounded; lateral expanded margins wide, striate and more or less reflexed; transverse impressions well marked, median line clear.

Elytra broad, strongly convex; EL/EW=1.63-1.64; sides parallel; apex roundly truncate; even intervals well bordered at base; striae deep, punctate-striate; intervals convex, even intervals much wider than odd ones (but less than twice as wide) and with coarser punctures extended to apical 1/3 of elytra; interval 3 with only basal and apical setiferous pores, middle pore absent; interval 5 with two setae near base; interval 7 narrow, distinctly carinate, with eight to nine setiferous pores.

Legs moderate, fore tibia with outer angle very sharp and strongly protruded, outer margin hardly serrate; middle tibia distinctly dilated at apex, and strongly curved in median portion; hind tibia elongate, with tibial spurs moderately long, sword-like, sharp; hind femur moderately dilated, with four posterior setae; hind tarsomere 3 (1.2 times) longer than 4, tarsomere 4 deeply emarginate (a little more than half of the joint); all tarsal claws weakly pectinate.

Prosternal process bordered at apex, middle coxa with several setae; ventrite VII of male complete at apex.

Male genitalia (Figure 17): Short, and stout, ventral margin expanded strongly at middle portion, apex distinctly bent ventrally; dorsal opening very wide and long; apical lamella broad, but much longer than wide.

Female. Unknown.

Remarks.

This species is closely allied to Orthogonius coomani , with differences as mentioned above.

Material examined.

Holotype: male, "Thailand: Phetchabun: Thung Salaeng Luang NP, pine forest, 16°35.789'N, 100°52.769'E, 732 m, Malaise trap,15-22.vi.2007, Pongpitak Pranee & Sathit leg., T2059", in QSBG.

Paratypes: 4 males, "Thailand: Phetchabun: Thung Salaeng Luang NP, pine forest, 16°35.789'N, 100°52.769'E, 732 m, Malaise trap,15-22.vi.2007, Pongpitak Pranee & Sathit leg., T2059"; 4 males, "Thailand: Phetchabum, Thung Salaeng Luang NP, Gang Wang Nam Yen, pine forest, 16° 35.789N, 100° 52.769E, 723 m, Malaise trap, 6-13.vii.2007, Pongpitak Pranee & Sathit leg., T2068"; 1 male, "Thailand: Phetchabun: Thung Salaeng Luang NP, pine forest; Gang Wang Nam Yen, 16°36.284'N, 100°53.128'E, 749 m, 22-23.vi.2007, Pan traps, Pongpitak & Sathit leg., T2058"; 4 males, "Thailand: Phetchabum, Thung Salaeng Luang NP, Gang Wang Nam Yen, 16° 36.284N, 100° 53.128E, 749 m, Malaise trap, 29. vi– 6. vii.2007, Pongpitak Pranee & Sathit leg. T2069", in QSBG, MNHN, SCAU and CRF, respectively.

Etymology.

The name refers to the similarity of the new species with Orthogonius coomani , which occurring in Vietnam.

Distribution.

Thailand. Known only from the type locality and other nearby site in Thung Salaeng Luang NP.