Onitis crassus Sharp, 1875

Karimbumkara, Seena Narayanan & Priyadarsanan, Dharma Rajan, 2024, Study on the genus Onitis (Coleoptera: Scarabaeidae: Scarabaeinae) of the Indian Subcontinent, with three new species from India, European Journal of Taxonomy 956, pp. 1-61 : 18-20

publication ID

https://doi.org/ 10.5852/ejt.2024.956.2657

publication LSID

lsid:zoobank.org:pub:9DCDD521-909D-4436-8495-086A11C50DA0

DOI

https://doi.org/10.5281/zenodo.13768276

persistent identifier

https://treatment.plazi.org/id/557187D2-FFE7-8915-9D7B-FEB8FB02FE12

treatment provided by

Plazi

scientific name

Onitis crassus Sharp, 1875
status

 

Onitis crassus Sharp, 1875 View in CoL

Figs 5D View Fig , 18 View Fig

Onitiscrassus Sharp, 1875: 48 (original description).

Onitis crassus View in CoL – Arrow 1931: 400 (keys and description). — Janssens 1937: 73 (revision). — Balthasar 1963: 45 (monograph). — Chandra 2000: 360 (distribution); 2008: 176 (distribution). — Bezděk & Krell 2006: 159 (distribution). — Chandra & Ahirwar 2007: 287 (distribution). — Chandra et al. 2012b: 29 (distribution). — Siddiqui et al. 2014: 299 (distribution). — Ali et al. 2015: 4 (distribution). — Gupta et al. 2015: 1037 (checklist). — Bezděk 2016: 179 (distribution).

Onitisvischnu – Preudhomme de Borre 1881: xxxix (synonymised by Arrow 1931). — Schoolmeesters 2022 (online catalogue).

Differential diagnosis

Onitis crassus is closer to O. castaneus in having hairy pygidium and uninterrupted clypeo-frontal carina but differs from the latter in having short scanty setae on the pygidium; frontal tubercle being placed behind the carina while in O. castaneus it is placed on the carina and the anterior margin of clypeus being gently excised in the middle while in the latter it is reflexed and straight. See diagnosis of O. brahma .

Type material examined

Holotype

INDIA • ♀; “ Onitiscrassus Type D.S.; Ex. Musaeo D. Sharp 1890, G. J. Arrow vid. 1928, A. Janssens vid., 1936: Onitiscrassus Sharp; Holotype (Red Label)”; MNHN EC4813 .

Additional material examined (4 specimens)

INDIA • ♂; “Determined from description G.J.A. Onitis Vischnu , de Borre ; Onitis Vischnu de Borre, Compared with type G.J.A., 6745, 7030”; BMNH (E) 1237163 ♀; “ Dehra Dun Coll. B.M. 1931– 2., River Suswa , Dehradun , U.P. C. Beeson . XI.’30; Cattle dung on sand ”; BMNH (E) 1237164 ♂; “A, Janssens vid. 1936: ONITIS crassus Sharp ; Onitiscrassus Shp. Revis. Arrow 1926; Onitiscrassus Shp. Compared with type G.J.A.; cf. Ann. Soc. Ent. Belg. Xxv, 1881, C.R. p. 39; Ex-Typis de Vischnu Borre ; det: Predhomme Borre, Onitis Vischnu Borre ; O. Vishnu, Reiche, India, 3050, Coll. J. Thomson ” ♀; same collection data as for preceding; IRSNB .

Description

MEASUREMENTS (in mm). TL=15.5–21; BW=9–10.5.

Male

Black; clypeus rugulose, anterior margin strongly elevated; gently excised in the middle; frontal carina entire, curved, with a tubercle behind; pronotum strongly and closely punctured, rugose anteriorly; elytra finely striate, intervals angularly elevated along the middle, finely, fairly closely punctured; pygidium opaque, rugulose with short setae; metasternal shield smooth, shining, feebly, sparsely punctured, sides of metasternum rugosely punctured, with long hairs; front legs elongate with a blunt process on its trochanter; hind femur with a hooked process at the middle of its lower edge.

Female

Clypeal margin scarcely excised in the middle; protibia broad with four blunt teeth and an articulated spur.

Distribution

India: Madhya Pradesh, Punjab, Uttarakhand, Uttar Pradesh. Other countries: Nepal; Pakistan ( Chandra 2000; Bezděk & Krell 2006; Chandra & Ahirwar 2007; Chandra 2008; Chandra et al. 2012b; Siddiqui et al. 2014; Ali et al. 2015; Gupta et al. 2015; Bezděk 2016; Schoolmeesters 2022).

MNHN

France, Paris, Museum National d'Histoire Naturelle

BMNH

United Kingdom, London, The Natural History Museum [formerly British Museum (Natural History)]

IRSNB

Belgium, Brussels, Institut Royal des Sciences Naturelles de Belgique

MNHN

Museum National d'Histoire Naturelle

IRSNB

Institut Royal des Sciences Naturelles de Belgique

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Scarabaeidae

Genus

Onitis

Loc

Onitis crassus Sharp, 1875

Karimbumkara, Seena Narayanan & Priyadarsanan, Dharma Rajan 2024
2024
Loc

Onitis crassus

Bezdek A. 2016: 179
Ali S. M. S. & Naeem M. & Baig F. & Shazad A. & Zia A. 2015: 4
Gupta D. & Chandra K. & Khan S. 2015: 1037
Siddiqui H. & Ahmed Z. & Khatri I. 2014: 299
Chandra K. & Ahirwar S. C. 2007: 287
Bezdek A. & Krell F. - T. 2006: 159
Chandra K. 2000: 360
Balthasar V. 1963: 45
Janssens A. 1937: 73
Arrow G. J. 1931: 400
1931
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