Abstract
New records of Coccinellidae in the Maritime Provinces of Canada are reported. The known fauna of the region consists of 47 species: 41 in Nova Scotia, 39 in New Brunswick, and 21 in Prince Edward Island. Of these, records are provided for 13 species newly recorded from Nova Scotia and 14 from Prince Edward Island. Two species, Diomus amabilis (LeConte) and Naemia seriata seriata Melsheimer, are newly recorded in Canada. Didion punctatum (Melsheimer) is removed from the fauna of PEI, and Coccidula lepida LeConte is removed from the fauna of NS, and Scymnus impexus Mulsant is removed from the faunas of NS and NB. Records of two adventive species not established in the region are also reported. Collecting effort in the three provinces and their sub-regions is briefly analyzed and compared. Biogeographic observations are provided in relation to the composition of the fauna as a whole, and of disjunct populations of six Nova Scotia coccinellids, several of which appear to be members of a coastal plain fauna that extends from New England to southern Nova Scotia. The potential vulnerability of the coccinellid fauna is discussed in the context of both adventive species in the region, and habitat loss and conservation.References
Boiteau, G., Bousquet, Y., & Osborn, W.P.L. (1999) Vertical and temporal distribution of Coccinellidae (Coleoptera) in flight over an agricultural landscape. Canadian Entomologist, 131, 269–277.
Chapin, E.A. (1956) On some Coccinellidae from Newfoundland and Nova Scotia. Psyche, 62, 152–156.
CIBC (1971) Biological control programmes against insects and weeds in Canada 1959–1968. Technical Committee No. 4. Commonwealth Institute of Biological Control, Trinidad. 266 pp.
Clarke, R.C. & Brown, N.R. (1961) Studies of predators of the balsam woolly aphid Adelges piceae (Ratz.) (Homoptera: Adelgidae) IX. Pullus impexus (Muls.) (Coleoptera: Coccinellidae), an introduced predator in eastern Canada. Canadian Entomologist, 93, 1162–1168.
Cormier, C.M., Forbes, T.A., Jones, T.A., Morrison, R.D., & McCorquodale, D.B. (2000) Alien invasion: the status of non–native lady beetles (Coleoptera: Coccinellidae) in industrial Cape Breton, Nova Scotia. Northeastern Naturalist, 7, 241–247.
Dearborn, R.G. & Donahue, C.P. (1993) An annotated list of insects collected and recorded by the Maine Forest Service: Order Coleoptera, Beetles. Maine Forest Service, Technical Report 32. August, Maine. 101pp.
Fernald, M.L. (1921) The Gray Herbarium expedition to Nova Scotia 1920. Rhodora, 63, 89–111, 130–152, 153–171, 184–195, 223–245, 257–278, 284–300.
Fernald, M.L. (1922) Notes on the flora of western Nova Scotia 1921. Rhodora, 24, 157–181, 201–208.
Gordon, R.D. (1976) The Scymnini (Coleoptera: Coccinellidae) of the United States and Canada: key to genera and revision of Scymnus, Nephus and Diomus. Bulletin of the Buffalo Society of Natural Sciences, 28, 1–369.
Gordon, R.D. (1985) The Coccinellidae (Coleoptera) of America north of Mexico. Journal of the New York Entomological Society, 93,1–912.
Gordon, R.D. & Vandenberg, N.J. (1991) Field guide to recently introduced species of Coccinellidae (Coleoptera) in North America, with a revised key to North American genera of Coccinellini. Proceedings of the Entomological Society of Washington, 93, 845–864.
Hoebeke, E.R. & Wheeler, A.G. (1996) Adventive lady beetles (Coleoptera: Coccinellidae) in the Canadian Maritime Provinces, with new eastern U.S. records of Harmonia quadripunctata. Entomological News, 107, 281–290.
Keddy, P.A. & Wisheu, I.C. (1989) Ecology, biogeography, and conservation of coastal plain plants: some general principles from the study of Nova Scotian wetlands. Rhodora, 91, 72–94.
Klimaszewski, J., Majka, C.G., & Langor, D. (2006) A review of Nearctic Tarphiota Casey, with a description of a convergent seashore-inhabiting species Atheta novaescotiae sp. n. (Coleoptera, Staphylinidae, Aleocharinae). Journal of Entomological Science, 9, (in press).
Majka, C.G. & McCorquodale, D.B. (2006) The Coccinellidae: Lady Beetles (Insecta: Coleoptera) of the Atlantic Maritime Ecozone. In: McAlpine, D.F. and Smith, I.M. (Eds.), Assessment of Species Diversity in the Atlantic Maritime Ecozone. National Research Council of Canada. Ottawa, Ontario. [in press]
McCalla, R.J. (1988) The Maritime Provinces Atlas. Maritext Ltd., Halifax, NS. 96 pp.
McCorquodale, D.B. (1998) Adventive lady beetles (Coleoptera: Coccinellidae) in eastern Nova Scotia, Canada. Entomological News, 109, 15–20.
McNamara, J. (1991) Family Coccinellidae: ladybird beetles. In: Bousquet, Y. (Ed.), Checklist of the Beetles of Canada and Alaska. Agriculture Canada Publication 1861/E. pp. 229–237.
National Atlas of Canada, 6th Edition (1995) Natural Resources Canada. Ottawa, Ontario. Available from http://atlas.gc.ca/site/index.html (accessed 10 January 2006)
Percy, J.A. (1996) Dykes, dams, and dynamos: the impacts of coastal structures. Fundy Issues 9. Bay of Fundy Ecosystem Partnership. Available from http://www.bofep.org/coastal.htm (accessed 10 January 2006)
Percy, J.A. (1999) Whither the waters? – tidal and riverine restrictions in the Bay of Fundy. Fundy Issues 11. Bay of Fundy Ecosystem Partnership. Available from: http://www.bofep.org/Publications/Fundy%20issues/restrict.htm (accessed 10 January 2006)
Putman, W.L. (1955) Bionomics of Stethorus punctillum Weise (Coleoptera: Coccinellidae) in Ontario. Canadian Entomologist, 87, 9–33.
Roland, A.E. & Smith, E.C. (1969) The Flora of Nova Scotia. Nova Scotia Museum, Halifax, NS. 746 pp.
Rytwinski, T. (2004) Plant use by native and non–native lady beetles (Coccinellidae) in Cape Breton Island, Nova Scotia. Honours thesis, University College of Cape Breton. 39 pp.
Schaeffer, C. (1912) Coccinella undecimpunctata LinnJ in Massachusetts. Psyche, 19, 104–105.
Turnock, W.J., Wise, I.L., & Matheson, F.O. (2003) Abundance of some native coccinellines (Coleoptera: Coccinellidae) before and after the appearance of Coccinella septempunctata. Canadian Entomologist, 135, 391–404.
Vandenberg, N.J. (1990) First North American records for Harmonia quadripunctata (Pontoppidian) (Coleoptera: Coccinellidae); a lady beetle native to the Palearctic. Proceedings of the Entomological Society of Washington, 92, 407–410.
Vandenberg, N.J. (2002) Coccinellidae Latreille 1807. In: Arnett, R.H., Jr., Thomas, M.C., Skelley, P.E. & Frank, J.H. (Eds.). American Beetles, Volume 2: Polyphaga: Scarabaeoidea through Curculionoidea. CRC Press, Boca Raton, USA. pp. 371–389.
Watson, W.Y. (1979) North American distributions of Coccinella u. undecimpunctata L. (Coleoptera: Coccinellidae). Coleopterists Bulletin, 33, 85–86.
Wheeler, A.G. & Hoebeke, E.R. (1981) A revised distribution of Coccinella undecimpunctata L. in eastern and western North America (Coleoptera: Coccinellidae). Coleopterists Bulletin, 35, 213–216.
Wheeler, A.G. & Hoebeke, E.R. (1995) Coccinella novemnotata in northeastern North America: historical occurrence and current status. Proceedings of the Entomological Society of Washington, 97, 701–716.
Wisheu, I.C. & Keddy, P.A. (1989) The Conservation and Management of a Threatened Coastal Plain Plant Community in Eastern North America (Nova Scotia, Canada). Biological Conservation, 48, 229–238.