Omphra rotundicollis Chaudoir, 1872

Raj, Shiju T., Sabu, Thomas K. & Danyang, Zhao, 2012, The apterous endemic genus Omphra Dejean (Coleoptera: Carabidae: Helluonini) of the Indian subcontinent: taxonomy with notes on habits and distributional patterns, Insecta Mundi 2012 (206), pp. 1-15 : 10-11

Omphra rotundicollis Chaudoir, 1872

Figures 7 , 9 , 14

Omphra rotundicollis Chaudoir, 1872: 140 ; Andrewes 1930: 237; Csiki 1932: 1578; Lorenz 2005: 511; Zhao et al. 2008: 369.

Description. Color. Dorsal side black, ventral side brownish red; labrum, mentum and legs brownish red. Dorsal and ventral body setae grey.

Head. Labrum transversely not extended; clypeus 2-6 setose. Mentum round in shape, median tooth with 2 setae, base of mentum with 3 setae. Last maxillary and labial palpomere dilated. Last antennomere elongate oval.

Pronotum. Strongly convex, not rounded or wholly rounded, widest in middle or apical one-third. Lateral margins weakly sinuate in front of posterior angles, base weakly emarginate laterally.

Scutellum. Densely or sparsely punctated.

Elytra. Not oval, widest after middle; humerus not pronounced; intervals weakly convex. Apex obliquely truncate, without emargination.

Genitalia. Male: Apical lamella wide or narrow; pointed or rounded at apex. Female: Stylomere 1 without setae at apical rim; stylomere 2 with two setae at ventro-lateral margin.

Measurements. Male (n=7), TL = 14.0 and 17.0, TW = 5.0 and 5.7, PL = 3.2 and 3.7, PW = 3.9 and 4.5, EL = 8.0 and 10.0. Female (n=3), TL = 15.0 and 18.0, TW = 5.5 and 6.0, PL = 3.5 and 3.8, PW = 4.1 and 4.7, EL = 8.0 and 10.0.

Specimens examined (n=110). Holotype. INDIA: Eastern India, Coll. Chaudoir ex coll. Dejean, 1 female ( MNHN). Madura, Zolyndicottes , ex. coll. Courgouin, det. H.E. Andrewes, 1 male; Sco. Ent. Belg., Coll. Putzeys, det. H.E. Andrewes, 1 sex undetermined. INDIA: Bengale , Coromandel , Genji , Coll on Le Moult , Natuaraliste , Paris , Coll. M, 8 males, 2 females, 2 sex undetermined; Coromandel , Genji , 6-8, 1903, R.P. Autemard, 4 males, 3 females, 1 sex undetermined; Coromandel , Genji , Coll on Le Moult , Natuaraliste , Paris , Coll. M, 3 males, 1 female; Tamil Nadu, Trichinopoly [=Thiruchirapally], 1905, Leg. R.P. du Breuil, 37 males, 21 females, 18 sex undetermined; Trichinopoly, R.P. Castels, 1905, 2 males; Shanbaganur , Coll on Le Moult , Naturaliste , Paris , Coll. M, 1 female; St. Thomas Mount , XII-1950, P. Susai Narhan I.G. 17816, 1 male, 1 female; Madurai, unknown collector, 1 male; Madurai, Collection E. Rousseau, 1 sex undetermined ( ISNB).

Distribution. India.

Remarks. Omphra rotundicollis is most similar to O. hirta with grey colored body setae and pointed elytral apex. The less pronounced elytral humerus distinguishes it from O. hirta .

Figures

Figures 2–8. Habitus of Omphra species. 2) O. hirta syntype. 3) O. pilosa syntype. 4) O. rufipes syntype. 5) O. atrata syntype. 6) O. complanata holotype. 7) O. rotundicollis holotype. 8) O. drumonti n. sp. holotype.

Figures 9–12. Elytral apex. 9) Pointed and not emarginate. 10) Straight and not emarginate. 11) Oblique and weakly emarginate. 12) Straight and deeply emarginate.

Figures 13–14. Last antennomere 13) oval and 14) elongate oval.