cover image: The genera and subgenera of the sawflies of Canada and Alaska

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The genera and subgenera of the sawflies of Canada and Alaska

8 Mar 2010

I-HE INSECTS AND ARACHNIDS OF CANADA ]HE INSECTS AND ARACHNIDS OFCANADA PART 20 The Genera and Subgenera of the Sawflies of Canada and Alaska Hymenoptera: Symphyta Henri Goulet Centre for Land and Biologicai Resources Research Ottawa, Ontario Research Branch Agriculture Canada Publication 1876 1992 @ Minister of Supply and Services Canada 1992 Available in Canada through Associated Bookstores and [...] Sawflies are members of the suborder Symphyta, and adults are easily distinguished from those of all other Hymenoptera by the broad joint between the abdomen and the thorax and by the first tergum clearly associated with the abdomen rather than with the metathorax. [...] Inside the large boi is a large (0.5-0.7 cm) mesh screen about 5 cm above the bottom ofthe box, used to retain large- plant debris; from the bottom of the box to the edge of the common bpening a sloped surface of about 45' leads insects to the common opening. [...] Sawflies are distinguished from Apocrita (Hymenoptera that are not sawflies) by the anterior margin of the tergum 1, which appears as part of the abdomen rather than the thorax, though it is fused to the postnotum of the metathorax !(1F9ig. [...] The appendages consist of a pair of artennae usually between the compound eyes, a clypeus attached to the ventral margin of the head, a labrum attached [o the clypeus, a pair of mandibles found behind the labrum and attached lateially to the ventral margin of the head capsule, a pair of maxillae behind the mandibles, and a labium behind the maxillae.
biology botany insects plants zoology egg organisms taiga insect wing pupa siricidae fir sawfly sawflies symphyta cocoon tenthredinidae
Pages
240
Published in
Ottawa

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