Onthophagus (Serrophorus) rectecornutus Van Lansberge, 1883

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 : 370

Onthophagus (Serrophorus) rectecornutus Van Lansberge, 1883

Figure 4B

Material examined (1♂). India, West Bengal, Nadia, Karimpur (23°58′32″N, 088°37′49″E), B.P.Kharel leg., 10.XII.2018, KUZEN S0213 (1♂).

Identification (♂). It can be distinguished from other Onthophagus species by the head short and broad, with a pair of straight, backwardly directed, and divergent horns on the vertex; clypeus semicircular, with a short and acuminate anterior carina; clypeal margin entire and strongly reflexed; pronotum anteriorly granular, with a longitudinal sulcus present medially, laterally slightly curved, posteriorly strongly rounded, and anterior angles sharp; elytra deeply striate, with interstriae finely punctate.

Geographical distribution. Bangladesh, Bhutan, Malaysia, Myanmar, Sri Lanka, Thailand, and Vietnam ( Arrow 1931; Schoolmeesters 2019). India: Arunachal Pradesh, Assam, Bihar, Karnataka, Kerala, Nagaland, Tamil Nadu, Tripura, Uttarakhand, and West Bengal ( Arrow 1931; Biswas and Chatterjee 1985, 1986a; Chatterjee and Biswas 2000; Sewak 2006; AnithaRani and Sanjayan2013; Karimbumkara and Priyadarsanan 2013; Muhaimin et al. 2015; Sathiandran et al. 2015; Schoolmeesters 2019).

Remarks. This species is widely distributed throughout the country.