Patrus gangeticus ( Wiedemann, 1821 )

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 : 1313

Patrus gangeticus ( Wiedemann, 1821)

( Figures 10 (f), 17(b))

Gyrinus gangeticus Wiedemann, 1821, p. 119 ; Perty 1831: 12.

Orectochilus gangeticus : Aubé 1838: 740; Régimbart 1882a: pl. 12, fig. 137; Régimbart 1892b: 714; Nowrojee 1912: 179.

Orectochilus (Patrus) gangeticus : Ochs 1930: 25; Vazirani 1984: 92, figs. 25E, 27A–D, 41B; Mazzoldi 2003: 29; Biswas et al. 1995: 133; Mukhopadhyay and Ghosh 2003: 22; Mukhopadhayay and Ghosh 2015: 464.

Patrus gangeticus : Hájek and Fery 2017: 28, 2019: 7, 2022: 7.

Type locality

Bengal, Ganges ( Wiedemann and Germar 1821).

Distribution in India ( Figure 17 (b))

Assam (Khairkhana), Bihar (Pusa), Jharkhand (Santal Parganas), Odisha (Berhampur), Sikkim, Uttar Pradesh (Allahabad, Mirzapur), and West Bengal (Mushidabad, Medinipur, Birbhum, Jalpaiguri, Darjeeling).

Global distribution

Bangladesh, India, and Indonesia.

Figures

Figure 10. Habitus (in dorsal view): (a) P. cribratellus cribratellus (Régimbart); (b) Patrus cuneatus (Régimbart); (c) P. desgodinsi desgodinsi (Régimbart); (d) Patrus discifer (Walker); (e) P. fletcheri (Ochs); (f) P. gangeticus (Wiedemann).

Figure 17. Map of India showing the distribution of Indian species of Gyrinidae: (a) P. discifer; (b) P. gangeticus, P. dilatatus; (c) P. figuratus, P. fletcheri; (d) P. haemorrhous haemorrhous.