Actenoncus punctatus Tian and Deuve

Tian, Ming-Yi & Deuve, Thierry, 2009, A review of the genus Actenoncus Chaudoir (Coleoptera: Caraboidea: Orthogoniini), Zootaxa 2135, pp. 57-64 : 62-63

Actenoncus punctatus Tian and Deuve

( Figs. 3 , 6 and 9 )

Actenoncus punctatus Tian and Deuve, 2006b: 152

Diagnosis. Rather small, light dark brown, right mandible without median tooth, labrum emarginated at frontal margin, head and pronotum coarsely punctate, elytral striae shallow, punctures large and isolated; abdominal ventrite VII deeply emarginated at apical margin in male, aedeagus more slender.

Length: 13.5 mm; width: 5.5 mm.

Body light dark brown. Habitus as in Fig. 3 .

Surface very shiny, head and pronotum with sparse and small punctures, elytra glabrous. Microsculptural meshes densely isodiametric.

Head as long as wide; eyes large, extraordinary prominent, neck constricted, labrum slightly emarginated at frontal margin, frontal impressions deep and short, not extending the level of fore margins of eyes; clypeus bisetose, base slightly raised; mandibles strong, right mandible without median tooth; palpi similar to those of above species; ligula narrow, bisetose at apex; mentum without median tooth, asetose, submentum with a pair of setae; palpiger unisetose; antennae similar to those of A. wallacei , but extending to basal one-fourth of elytra.

Pronotum similar to that of above species (PW/PL=1.6), but lateral expanded margins wider, basal margin slightly produced backwards in median portion.

Elytra elongate ovate, EL/EW=1.5, convex; base unbordered, widest a little behind middle, paralleled at sides; apex broadly truncate, inner angle nearly rectangular, pointed; elytral striae shallow, strial punctures large, well-marked and isolated; intervals flat, equal in width at middle, without puncture and setiferous pore, except a row of tiny punctures at basal part of interval 8.

Prosternal process unbordered at apex. Hind tarsomere 4 slightly emarginated at apex. Abdominal ventrite VII slightly emarginated at apical margin in male ( Fig. 6 ).

Male genitalia. The median lobe of aedeagus slender and elongate, slightly expanded in median portion, the apical lamella slightly longer than wide, rounded at apex ( Fig. 9 ).

Female. Unknown.

Distribution. Indonesia and Malaysia, occurring in the islands of Borneo and Sumatra.

Materials examined. 1 male, the holotype, “Borneo Occ. Pontainak, 1899”, from west Borneo, Indonesia ( MNHN); 1 male, a paratype, “Borneo, 3412”, “Bowring, 63.47” and “ Actenoncus sp. n. ”( NHML); 1 male, a paratype, “Sumatra, 1979, E. W. Diehl”, “Sinder Raya, 14. X., 40 km, W. Dolok M.”, in ( NHMB); 1 male, “ Malaysia: Sabah Mt., Kinabalu Park, Poring Hot, Springs, 15–30. 12. 1995 ”, and “Coll. Natur. Museum Stuttgart, W. Schawaller” ( NHMS).

Figures

FIGURES 1 – 4. Habiti of Actenoncus. 1. A. ater, male, 2. A. wallacei, n. sp., female, holotype, 3. A. punctatus, male, holotype, 4. A. foersteri, male. scale bar: 10.0 mm.

FIGURES 5 – 10. Male abdominal ventrite VII (Figs. 5 – 7) and median lobes of aedeagus, lateral and dorsal views (Figs. 8 – 10) of Actenoncus. 5, 8. A. ater, 6, 9. A. punctatus; 7, 10. A. foersteri. scale bar: 10.0 mm, A for Figs 5 – 7; B for Figs. 8 – 10.