Coridius nigriventris (Westwood, 1837), 2024

Boyane, Swapnil S., Sen, Sandeep, Priyadarsanan, Dharma Rajan, Thunga, Pavan Kumar, Joshi, Nikhil U. & Ghate, Hemant V., 2024, Integrative taxonomy of the genus Coridius Illiger, 1807 (Hemiptera: Heteroptera: Dinidoridae) reveals hidden diversity and three new species from North-East India, PLoS ONE (e 0298176) 1807 (7), pp. 1-46 : 19

Coridius nigriventris (Westwood, 1837) ( Figs 7C and 8C) (Lectotype images).

Aspongopus nigriventris westwood, 1837: 26; Dallas, 1851: 349; Vollenhoven, 1868: 39; walker, 1868: 482; St å l, 1870: 85; Distant, 1879: 45; Atkinson, 1889: 89; Kirby, 1892: 88; Lethierry & Severin, 1893: 237; Breddin, 1900: 331, 332; Distant, 1901: 819; 1902: 284; Kirkaldy, 1909: 256; Schumacher, 1917: 446; Distant, 1921: 166; Hoffmann, 1935: 120; Villiers, 1952: 85; Yang, 1962: 48; Hsiao et al., 1977: 70, pl. 8, Fig 122; Datta et al., 1985: 5, Fig 8; Zhang & Lin, 1988: 85; Hua, 1989: 43.

Aspongobus [sic] nigriventris Dohrn, 1859: 21 .

Aspongopus (Aspongopus) nigriventris Schouteden, 1913: 8 .

Coridius nigriventris Yang, 1940: 7 , 10, 21, 22, Fig 6; Hoffmann, 1948: 23; Schaefer & Ahmad, 1987: 30; Zhang & Lin, 1987: 76.

Coridius nepalensis Durai, 1987: 198 ; Rolston et al., 1996: 42, 43, 100.

Material examined (images): Lectotype female. INDIA: Labels: TYPE wESTw. (HOPE), C. Hemipt. 1837, Part I, page 26, Distant, P.Z.S., 1900, p. 807–825 // Type // nigriventris, west // Ind. Orient. // aspongopus nigriventris westw. // TYPE HEM: No. 116, Aspongopus nigriventris , westwood, HOPE DEPT. OXFORD // Aspongopus nigriventris westwood, R. Kumar 1973, LECTOTYPE.

Diagnosis. Entire body blackish brown except coria and ocelli which are paler. Connexivum without yellow spots in between segmentation. Body oval, lateral margin of pronotum rounded; anterior margin slightly concave and posterior margin rounded; lateral margins raised and brown in colour. Antennae five segmented, first segment surpasses apex of head, second 0.84 times longer than third, fourth longest and laterally compressed. Femora slightly curved inwards. First segment of tarsus densely setose, second and third with very sparse long golden setae.

Geographical distribution. India (Kerala and Maharashtra) [ 42].

Remarks. This species was described as Aspongopus nigriventris (= Coridius nigriventris ) by westwood in 1837 from India. The exact type locality was not mentioned in the original description. Durai synonymized this species with C. nepalensis in 1987, considering the similarity of the aedeagus with the latter. However, in this study, we used the sequence deposited as C. nigriventris (accession #JQ387600) in GenBank for molecular analysis. we found that C. nigriventris and C. nepalensis form separate lineages (see Fig 4). Additionally, upon comparing type images, we noted some morphological differences. Therefore, we reinstate the status of C. nigriventris as a valid species.