Brachinus (Cnecostolus) geiseri Hrdlička, 2019

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 : 582

Brachinus (Cnecostolus) geiseri Hrdlička, 2019

Brachinus geiseri Hrdlička, 2019: 80 .

Type locality. India: Pune ; coll. P. V. Joshi

Type depository. BMNH

Specimen examined. No specimens seen, description summarized from Hrdlička (2019).

Description. Length: 9.8 mm. Head, pronotum and mandibles rusty red; antennomeres 1–4 yellow, 5–11 yellow brown; elytra black with four yellow spots; legs yellow.

Head longer than wide, frons (anteriorly), neck (entirely) punctuate, sparsely pubescent.

Pronotum longer than wide; apical margin straight with lateral region projecting forward, basal margin sinuate; disc convex, slightly matt, punctated pubescent, laterally with anterior three-fourths convex, posterior fourth divergent; median groove uniformly deep, reaching the apical and basal margins.

Elytral disc matte, punctate, pubescent; base narrowed, apex wide, widest just before apex; humerus with corners rounded; apex without re-entrant angle.

Distribution. INDIA: Maharashtra: Pune.

Remarks. This species is close to B. illotus Chaudoir, 1876 among the described Indian Brachinus . Brachinus illotus differs by having a smaller form, elytra having lateral reddish yellow margins, elytral apex straightly truncate, reddish yellow spot near to elytral apex smaller, and flattened pronotal disc. For further description of the species see Hrdlička (2019).