Brachinus flaviventris Chaudoir, 1876

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 : 581-582

Brachinus flaviventris Chaudoir, 1876

Fig. 2a

Brachinus flaviventris Chaudoir, 1876: 68 ; Andrewes, 1930a: 49.

Type locality. India: Tamil Nadu: Coromondel Coast, coll. Guerin.

Type depository. MNHN .

Specimen examined (n=1). Syntype labelled “‘Coromandel’, coll. Guerin, det. Chaudoir”.

Description. Length 5.0– 6.5 mm. Head, pronotum, antennae, scutellum and sutural line reddish brown; eyes black; elytra bluish black; legs pale reddish yellow.

Head broad, wider than long, punctate, pubescent, neck rough, wrinkled; eyes protruding; antennae stout, short, not reaching the middle of elytra, first four segments of lighter colour, segment 3 equals the combined length of segments 1 and 2, apical segment elongate oval.

Pronotum longer than broad, rough, wrinkled, pubescent; disc with apical and basal margin sinuate, with apical outwardly sinuate and basal inwardly sinuate, lateral edge of the apical margin not projecting forward; disc laterally with anterior two-thirds convex, posterior third divergent, hind angles blunt, acute, slightly projecting laterally; lateral bead narrow, lateral margin brownish black; median groove deep, deepest at basal and apical region; basal transverse foveae present, shallow.

Elytra long, sub-parallel, glossy, punctated, pubescent; humerus prominent, narrow, rounded; apex without reentrant angle, having membranous border; very weak, broad, rounded striations, narrow intervals.

Distribution. INDIA: Maharashtra: Nagpur; Tamil Nadu: Coromondel coast

Figures

FIGURE 2. Dorsal habitus of Indian Brachinus species (cont.): a) B. flaviventris Chaudoir, 1876 (syntype, MNHN); b) B. hazardi Andrewes, 1930 (holotype, BMNH); c) B. illotus Chaudoir, 1876 (syntype, MNHN); d) B. limbellus Chaudoir, 1876 (syntype, MNHN); e) B. limbicollis Chuadoir, 1876 (syntype, MNHN); f) B. modestus Schmidt-Göbel, 1846 (holotype, NMPC); g) B. peltastes Andrewes, 1931 (holotype, BMNH); h) B. reyi Andrewes, 1924 (holotype, BMNH); i) B. sordidus Andrewes, 1933 (holotype, BMNH)