Gyrinus cavatus Atton 1990
Gyrinus cavatus Atton, 1990 Gyrinus cavatus was reported from Nova Scotia by Atton (1990) and Roughley (1991). In Nova Scotia it has only been found on Cape Breton Island (Fig. 9). Prior to Atton’s (1990) description of the species, separating it from the Gyrinus minutus Fabricius, 1798 (a Holarctic...
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Zenodo
2009
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| Online Access: | https://dx.doi.org/10.5281/zenodo.3790677 https://zenodo.org/record/3790677 |
| Summary: | Gyrinus cavatus Atton, 1990 Gyrinus cavatus was reported from Nova Scotia by Atton (1990) and Roughley (1991). In Nova Scotia it has only been found on Cape Breton Island (Fig. 9). Prior to Atton’s (1990) description of the species, separating it from the Gyrinus minutus Fabricius, 1798 (a Holarctic species recorded by him in North America from northern sites in British Columbia and the Yukon Territories east to Labrador and northern Newfoundland), previous records of G. cavatus were reported under the name of G. minutus . Roughley (1991) appears to have confused Atton’s (1990) findings, reporting both species from Nova Scotia and treating G. cavatus in the subgenus Gyrinus (s. str.) rather than in Gyrinulus Zaitsev. Oygur and Wolfe (1991) were apparently unaware of Atton’s (1990) separation of G. minutus ( sensu lato ) into two species. Kenner (2000) subsequently reported G. cavatus from Ontario, Québec, and Maine. Gyrinus minutus is consequently removed from the faunal list of New Brunswick and Nova Scotia. The ecology of this G. cavatus has not been documented, however, Oygur and Wolfe (1991) reported G. minutus from woodland pools, rocky pools, semi-peaty lakes, peat-ringed bogs, and dystrophic habitats. Presumably G. cavatus is found in similar habitats. We have not been able to find voucher specimens of this species from New Brunswick in any Canadian collection. Consequently, further research should be conducted to ascertain if this species actually occurs in the province as reported by Roughley (1991). : Published as part of Majka, Christopher & Kenner, Rex, 2009, The Gyrinidae (Coleoptera) of the Maritime Provinces of Canada: new records, distribution, and faunal composition, pp. 355-372 in ZooKeys 22 (22) on pages 360-361, DOI: 10.3897/zookeys.22.216, http://zenodo.org/record/576544 : {"references": ["Atton, FM (1990) Gyrinus (Gyrinulus) cavatus sp. nov. from North America described and compared with Gyrinus (Gyrinulus) minutus Fabricius (Coleoptera: Gyrinidae). The Canadian Entomologist 122: 651 - 657.", "Roughley RE (1991) Family Gyrinidae: Whirligig Beetles. In: Bousquet Y (Ed) Checklist of Beetles of Canada and Alaska. Ottawa, Ontario: Agriculture Canada, publication 1861 / E: pp. 72 - 673. http: // www. canacoll. org / Coleo / Checklist / PDF files / GYRINIDAE. pdf [accessed 29 June 2009]", "Oygur S, Wolfe GW (1991) Classification, distribution and phylogeny of North American (north of Mexico) species of Gyrinus Muller (Coleoptera: Gyrinidae). Bulletin of the American Museum of Natural History 207: 1 - 97.", "Kenner RD (2000) Gyrinus cavatus and G. minutus (Coleoptera: Gyrinidae) in British Columbia with comments on their nearctic distributions. Journal of the Entomological Society of British Columbia 97: 67 - 71."]} |
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