Gyrinus smaragdinus Régimbart, 1891

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 : 1298

Gyrinus smaragdinus Régimbart

( Figures 7 (c), 15(a))

Gyrinus smaragdinus Régimbart, 1891, p. 547 ; Zimmermann 1917: 164; Peschet 1923: 7; Ochs 1924: 230; Ochs 1930: 8; Vazirani 1977c: 291; Vazirani 1984: 34, figs. 5, 10D, 11D, 12D, 15D, 32C, 35B; Mazzoldi 1995: 159; Mukhopadhyay et al. 2000: 82; Hájek and Fery 2019: 5; Suksai et al. 2021: 99 , figs. 1B, 2, 3C–E, 7A–B, 8A; Hájek and Fery 2022: 3.

Type locality

Assam, Khasi Hills ( Régimbart 1891).

Material examined

INDIA: Andaman and Nicobar Islands: South Andaman, Port Blair , 11.63431°N, 92.736294°E, 1 ex ., 1 April 1969, leg. T.D. Soota [5645/H4A] . Meghalaya: Shillong, Bishnupur, 25.5788621°N, 91.8929922°E, 4 exs ., 5 October 1960, leg . S .N . Prasad [30493/ H4A]; Shillong, Bishnupur , 25.5788623°N, 91.8929924°E, 2 exs ., 5 July 1960, leg. T. G. Vazirani [30494/H4A]; West Khasi Hills , 25.58333°N, 91.633333°E, 1 ex ., 20 November 1926, leg . S .L. Hora [1005/H4].

Distribution in India ( Figure 15 (a))

Andaman and Nicobar Islands and Meghalaya (Khasi Hills, Shillong).

Global distribution

China, India, Myanmar, Thailand, and Vietnam.

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.