Onthophagus ( Onthophagus ) circulifer Arrow, 1931

Kharel, Bhim Prasad, Schoolmeester, Paul & Sarkar, Subhankar Kumar, 2020, A first faunistic account on the Onthophagus Latreille, 1802 (Coleoptera, Scarabaeidae, Scarabaeinae) of the Nadia district, West Bengal, with a preliminary checklist from India, Check List 16 (2), pp. 361-381 : 365

Onthophagus ( Onthophagus) circulifer Arrow, 1931 Figure 2F, G

Material examined ( 1♂, 1♀). India, West Bengal, Nadia, Nabadwip ( 23°23′57″N, 088°22′08″E), S.K.Sarkar leg., 08.VII.2018, KUZEN S0134 ( 1♂), KUZEN S0135 ( 1♀).

Identification ( ♂). This species can be distinguished from other Onthophagus species by the uniform dorsal colour; head broad, with sparse punctures and a pair of backwardly inclined, and short parallel horns on the vertex, basally fused by a medially toothed carina; clypeus produced and bilobed anteriorly; pronotum strongly convex and annularly punctate; elytra shallowly striate, with interstriae flat and minutely granulate; pygidium coarsely and annularly punctate.

Geographical distribution. Myanmar ( Arrow 1931; Karimbumkara and Priyadarsanan 2013). India: Assam, Haryana, Jammu and Kashmir, Maharashtra, Meghalaya, Punjab, Sikkim, Uttarakhand, Uttar Pradesh, and West Bengal ( Arrow 1931; Chandra et al. 2012a, 2012c; Karimbumkara and Priyadarsanan 2013, 2016).

Remarks. This species is widely distributed throughout the country.