The book Canadian Bark Beetles was written by author James Malcolm Swaine Here you can read free online of Canadian Bark Beetles book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Canadian Bark Beetles a good or bad book?
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Length, 2-5 mm. A large and very distinct species; connected with the nitidulus group through canadensis. Host trees. Pines. Distribution. Eastern United States; Nova Scotia. Pityophthorus canadensis Sw. ; Dom. Ent. Br. , Dept. Agric. , 14: 24, 1917. Of the size and shape of cariniceps Lee. , and apparently replacing that species in Quebec and Ontario. Host trees. White Pine and Red Pine. Distribution. Quebec, O/ntario. Breeding in dying small branches. Pityophthorus intextus Sw. ; Dom. Ent. Br.... , Dept. Agric. , Bull. 14: 29, 1917. The length, 1-8 mm. ; the width slightly more than one-third the length; the declivity sulcato-retuse, with long bristles. Host trees. Spruce and Larch. Distribution. Northern Alberta and northeastern British Columbia. Pityophthorus pulchellus Eichh. , Berl. Ent. Zeit. , 275, 1868; herticeps Lee. , Am. Phil. Soc. Proc. , 17: 623, 665, 1878; pusio Lee. , loc. Cit. P. Pusio Lee. Is known by the type and a short series from the Eastern United States. P. Herticeps Lee.
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