Orectochilus murinus murinus Régimbart

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 : 1300-1301

Orectochilus murinus murinus Régimbart

( Figures 7 (f), 15(c))

Orectochilus murinus Régimbart, 1892b, p. 709 ; Régimbart 1907: 215; Zimmermann 1917: 168; Peschet 1923: 17; Vazirani 1958: 17.

Orectochilus (Orectochilus) murinus : Ochs 1930: 18; Vazirani 1977c: 292, 1984: 39, figs. 17B, D; Biswas et al. 1995: 128; Mukhopadhyay et al. 2000: 82; Mazzoldi 2003: 28; Mukhopadhyay and Ghosh 2010: 271; Mukhopadhyay and Ghosh 2003: 21; Hájek and Fery 2017: 27, 2019: 6; Liang et al. 2021: 20 , figs. 9A–10; Hájek and Fery 2022: 6.

Type locality

Sikkim, Kunleong, 1904–205 ( Liang et al. 2021).

Material examined

INDIA: Arunachal Pradesh: West Kameng, Bomdila , 27.26449°N, 92.415931°E, 1 ex ., 20 March 1973, leg . S .K. Mondal [25094/H4A]. Himachal Pradesh: Solan , 30.90593°N, 77.097321°E, 3 exs ., 05 May 1997, leg . H .P. Agrawal [20746/H4A]. Sikkim: West Sombaria , 27.14077°N, 88.146218°E, 9 exs ., 02 May 1994, leg . S .K. Saha [25707/H4A]. Uttarakhand: Rampur, Jamuna River, Dehradun , 30.368558°N, 77.833132°E, 6 exs ., 19 May 1965, leg. T. D. Soota [30492/H4A]; Almora, Hawalbagh Village , 29.64285°N, 79.63269° E, 1 ex ., 08 October 2001 [19346/H4A]; Almora , 29.59731°N, 79.665338°E, 2 exs ., 08 October 2001 [26330/H4A], leg . P . Mukhopadhyay and Party . West Bengal: Jalpaiguri, Ghumti , 26.52046°N, 88.719625°E, 2 exs ., 1 June 1914, leg . Lord Carmichael [986, 989/H4]; Darjeeling, Peshok , 27.07267°N, 88.393382°E, 3 exs ., 1 October 1913, leg . Lord Carmichael [996/H4]; Darjeeling, Rangpo , 27.16978°N, 88.526476°E, 1 ex ., 29 May 1997, leg . S . Biswas and Party [25708/H4A].

Distribution in India ( Figure 15 (c))

Arunachal Pradesh (West Kameng), Assam (Kaziranga: Mikir Hills), Himachal Pradesh (Shimla: Valley of Sutlej , Dharampur, Solan), Meghalaya (Khasi Hills, Shillong), Punjab (Gurdaspur: Ghuman), Sikkim (Sombaria, Rongpo), Uttarakhand (Almora, Kumaon, Mussorie, Nainital, Chakrata, Dehradun, Rishikesh), and West Bengal (Darjeeling: Kalimpong, Pashok, Kurseong) .

General distribution

Bhutan, China, Indochina, India, and Myanmar.

Remarks

This is the first record of this species from Arunachal Pradesh.

Figures

Figure 7. Habitus (in dorsal view): (a) Gyrinus (Gyrinus) convexiusculus (Macleay); (b) G. (G.) distinctus Aubé; (c) G. smaragdinus Régimbart; (d) Metagyrinus arrowi (Régimbart); (e) Orectochilus castesi Régimbart; (f) O. murinus murinus Régimbart.

Figure 15. Map of India showing the distribution of Indian species of Gyrinidae: (a) Gyrinus convexiusculus, G. distinctus, G. smaragdinus; (b) Orectochilus assimilis, O. castesi, M. arrowi; (c) Patrus ahlwarthi, O. murinus murinus, O. murinus occidentalis, O. nuristanicus himalayensis, O. orbisonorum; (d) P. aenipennis, P. andamanarum, P. annandalei, P. brincki, P. cavernicola.