Macrocheilus niger Andrewes, 1920

Zhao, Danyang & Tian, Mingyi, 2012, Taxonomic notes on the Macrocheilus Hope (Coleoptera, Carabidae, Helluonini) from Oriental Region, with description of one new species from the Philippines, ZooKeys 228, pp. 77-100 : 84

Macrocheilus niger Andrewes, 1920 Figs 4, 12, 20, 29, 30, 39, 46

Macrocheilus niger Andrewes 1920: 499. Csiki 1932: 1574; Lorenz 2005: 512. Type locality: India (Nilgiri Hills), deposited in NHML.

Diagnosis.

Length 16.0-16.3 mm, width 6.0-6.2 mm. Labrum (Fig. 4) convex, with a short furrow on each side of base, narrowed and pointed in front, with three pairs of setae away from the margin; ligula thickened, apex truncate towards sides, apical margin slightly emarginate, deeply depressed towards base, with a small median impression near apex; mentum (Fig. 12) glabrous at base; median tooth shorter than lobes, rather narrow and with apex rather pointed, two pairs of setae at basal area; lateral lobes obtuse at apex. Palpi (Fig. 20) not dilated. Elytral spots transverse, close to the middle of interval 5, covering intervals 3-7.

Male genitalia. Median lobe stout, apical lamella short and round at apex (Figs 29-30).

Female genitalia. Gonocoxite subapically dilated, three setae on dorsal surface, sharp at apex (Fig. 39).

Remarks.

Similar to Macrocheilus asteriscus , but differs with the tooth of mentum plurisetose and elytral spot not cruciform.

Materials examined.

1 female, the holotype, labeled "type, 11, H. L. Andrewes, Nilgiri Hills, H. E. Andrewes Coll., B.M. 1945-97.; Macrochilus niger Type-, Andr., H. E. Andrewes det.; Macrochilus niger Andrewes, 1920", deposited in NHML. 1 male and 1 female, "Dehra-Dun 1940-45, Kumaon Himalaya, Liesenfeldt leg.", deposited in MNHN.

Distribution.

India (Nilgiri Hills, Malabar, Madras and Bombay) and Sri Lanka.