. An historical and descriptive account of British America [microform] : comprehending Canada Upper and Lower, Nova Scotia, New Brunswick, Newfoundland, Prince Edward Island, the Bermudas, and the fur countries, their history from the earliest settlement, the statistics and topography of each district, their commerce ... : to which is added a full detail of the principles and best modes of emigration. Hudson's Bay Company; Compagnie de la Baie d'Hudson; Natural history; Sciences naturelles. nm- .. '* 268 NOTICES REGARDING THE PRINCIPAL Several species of Cieindela occur in Canada. We may here


. An historical and descriptive account of British America [microform] : comprehending Canada Upper and Lower, Nova Scotia, New Brunswick, Newfoundland, Prince Edward Island, the Bermudas, and the fur countries, their history from the earliest settlement, the statistics and topography of each district, their commerce ... : to which is added a full detail of the principles and best modes of emigration. Hudson's Bay Company; Compagnie de la Baie d'Hudson; Natural history; Sciences naturelles. nm- .. '* 268 NOTICES REGARDING THE PRINCIPAL Several species of Cieindela occur in Canada. We may here name the purple species ( C, purpurea, Oliv.), of which the green variety may be regarded as the American re- presentative of our C. campestris. It is found in many parts of North America, and is subject to a considerable diversity of aspect. A more recently discovered species is the white-lipped cieindela {C. albilabris, Kirby), of which the elytra ai'e broadly punctured, with three mar- ginal dots and a broken discoidal band of white. It was taken in Canada by Dr Bigsby, and somewhat resembles our C. sylvatica, but differs in wanting the silky lustre, as well as in being of smaller size. Of the BrachinidtE, the blue-winged bombardier (Bra- chinus cyanipennisy Say), is a Canadian species, closely allied to B. crepitans of Europe, but differing from it and other species in having the thin white membrane that terminates the elytra, especially at their inner angle, longer and more conspicuous. The most remarkable character of tliese insects consists in their secretion of a peculiarly caustic liquor, of an extremely penetrating odour. When propelled by them it evaporates with a detonating sound,—from whence their title of Bom- bardiers. The apparatus employed in the production of this fluid has been described by M. Leon Dufour,* and Rowlander informs us that the Brachini are capable of producing eighteen or twenty discharges consecutively. They may be regarded on the whole as so


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Keywords: ., bookcentury1800, booksubjectnaturalhistory, booksubjectsciencesn