Patrus productus ( Régimbart, 1884 )

Gupta, Devanshu, Sonali, Shipra, Wani, Irtiza, Ghosh, Priyanka, Ghosh, Asim Kumar & Ghosh, Sujit Kumar, 2025, A comprehensive taxonomic review of Indian Gyrinidae (Coleoptera): new combinations, geographic distribution, and annotated species checklist, Journal of Natural History 59 (17 - 20), pp. 1267-1338 : 1321

Patrus productus ( Régimbart, 1884)

( Figures 12 (b), 19(b))

Orectochilus productus Régimbart, 1884, p. 422 , pl. 12, fig. 130; Régimbart 1888: 623; Régimbart 1889: 156; Régimbart 1891: 552; Regimbart 1893: 104; Régimbart 1903: 334; Zimmermann 1917: 167; Peschet 1923: 12; Ochs 1927b: 244; Ochs 1928: 100; Ochs 1929b: 245; Ochs 1929c: 402; Vazirani 1958: 15; Vazirani 1977a: 251; De (Pal) and Sengupta 1993: 116; Ghosh et al. 2000: 37; Khan and Ghosh 2001: 66, fig. 31.

Orectochilus (Patrus) productus : Ochs 1930: 31; Vazirani 1984: 51, figs. 8, 10E, 11E, 12E, 19A, 36A, 46A; Biswas et al. 1995: 129; Mazzoldi 1995: 165; Das et al. 2014: 459.

Patrus productus : Dutta and Bhattacharya 2008: 182; Miller and Bergsten 2012: 706–746; Liang et al., 2021: 31 .

Type locality

India ( Régimbart 1884).

Material examined

INDIA: Jharkhand: Godda, Manoharpur , 24.92643°N, 87.327654°E, 9 exs ., 26 February 1954, leg . A .P . Kapur [11527/H4]; Hazaribagh , 23.99247°N, 85.363676°E, 1 ex ., 11 February 1954, leg . A .P. Kapur [11528/H4]. Madhya Pradesh: Anuppur, Amarkantak , 22.68223°N, 81.753222°E, 1 ex ., 1 January 1927, leg . H .S. Pradhan [994/H4]. Maharashtra: Nasik, Dindori , 20.20451°N, 73.832436°E, 1 ex ., 6. June 1927 [885/H4] – 14 ex., 23 . v .1927 [886– 890/H4], 10 exs., 8 June 1927 [901–909/H4], leg . B .N. Chopra. Meghalaya: West Garo Hills , 25.49974°N, 90.333291°E, 1 ex ., 1 March 1917, leg . S . Kemp [983/H4]. West Bengal: Kolkata , 22.56386°N, 88.346952°E, 1 ex ., 6 December 1925, leg. R.B.S. Sewell [884/H4], 8 exs., 26 October 1949, leg . A .P. Kapur [8061–8066; 8044/H4].

Distribution in India ( Figure 19 (b))

Assam (Dibrugarh, Mangaldai), Bihar (Pusa: Bankipur), Chhattisgarh, Jharkhand (Singhbhoom, Manbhum, Konbir, Godda, Hazaribagh), Kerala ( Cochin, Thiruvananthapuram, Vembanaad Lake , Kozhikode ‘Calicut’), Madhya Pradesh (Amarkantak, Annuppur, Mandla, Dindori, Umaria: Jaithari Range, Jabalpur), Maharashtra (Nasik), Meghalaya (Garo Hills, Damalgiri, Ganool Riveri), Puducherry (Mahe), (‘Madras’ Chennai), Tripura (Rudra Sagar), and West Bengal (‘Calcutta’ Kolkata: Garia; Darjeeling, Sunderban, Siliguri, 24 Brahmani River, Medinipur, Nadia, Botanical Garden) .

Global distribution

Borneo, Cambodia, China, Cochinchina, India, Indonesia, Malaysia, Myanmar, Sri Lanka, Thailand, and Vietnam.

Figures

Figure 12. Habitus (in dorsal view): (a) Patrus oblongiusculus oblongiusculus (Régimbart); (b) P. productus (Régimbart); (c) P. punctulatus (Régimbart); (d) P. ritsemai (Régimbart); (e) P. semivestitus (Guérin-Méneville).

Figure 19. Map of India showing the distribution of Indian species of Gyrinidae. (a) P. oblongiusculus oblongiusculus, P. orissaensis, P. punctulatus; (b) P. productus; (c) P. horni, P. kempi, P. lucidus, P. rivularis, P. volubilis; (d) P. semivestitus.