Brachinus eucosmus Andrewes, 1937

Akhil, S. V., Divya, M. & Sabu, K. Thomas, 2020, Bombardier beetles of genus Brachinus Weber, 1801 (Carabidae: Brachininae Brachinini) from India, Zootaxa 4816 (4), pp. 576-600 : 581

Brachinus eucosmus Andrewes, 1937

Fig. 1i

Brachinus eucosmus Andrewes, 1937: 571 ; Hrdlička, 2003: 215; 2017: 476.

Type locality. India: Uttarakhand: Dehra Dun, coll. J. C. M. Gardner and G. D. Bhasin.

Type depository. BMNH .

Specimen examined (n=1). Holotype labelled “Type, Dehra Dun, U.P., coll. J. C. M. Gardner, 20.III.1933, ‘Ex. Descented termite mound’, ‘2328’, det. H. E. Andrewes, Brit.Mus.1937.548.”

Description. Length 18.0–19.0 mm. Head and pronotum brownish red; base and lateral margin of pronotum brownish black; palpi, antennae and legs reddish brown; elytra black with three reddish yellow spots.

Head convex; wide, shallow frontal foveae; surface finely punctate; eyes prominent; antennae stout, almost reaching the middle of elytra.

Pronotum convex, cordate, wider than head, wider than long; surface finely punctate, becoming coarse along base; base as wide as apex; lateral bead narrow; disc laterally with anterior two-thirds strongly convex, posterior third strongly sinuate, hind angles acute, sharp, projecting laterally; median groove fine, deeper near base; transverse impression present, shallow, clear.

Elytra convex, dilated behind, longer than broad, humerus rounded; apex with a re-entrant angle and glabrous membranous border; intervals convex with fine scattered punctures; three reddish yellow spots present, first fairly large, placed near to humerus and rounded, second irregularly rounded and just behind mid region, third small, oblique, near apex.

Distribution. INDIA: Uttarakhand: Dehra Dun.

Figures

FIGURE 1. Dorsal habitus of Indian Brachinus species: a) B. dryas Andrewes, 1936 (holotype, BMNH); b) B. inops Andrewes, 1932 (holotype, BMNH); c) B. hexagrammus Chaudoir, 1876 (syntype, MNHN); d) B. sexmaculatus Dejean, 1825 (syntype, MNHN); e) B. tetracolon Chuadoir, 1876 (syntype, MNHN); f) B. tetragrammus Chaudoir, 1876 (syntype, MNHN); g) B. pictus (Hope, 1833) (ZSIM); h) B. cinctellus Chaudoir, 1876 (syntype, MNHN); i) B. eucosmus Andrewes, 1937 (holotype, BMNH)