PSYCHE Psyche 1687-7438 0033-2615 Hindawi Publishing Corporation 910286 10.1155/2011/910286 910286 Research Article Histology of the Larval Neodiprion abietis (Hymenoptera: Diprionidae) Digestive Tract Lucarotti Christopher J. clucarot@nrcan.gc.ca 1, 2 Whittome-Waygood Beatrixe H. whittome@uvic.ca 3 Levin David B. levindb@cc.umanitoba.ca 3, 4 Matthews Robert 1 Natural Resources Canada Canadian Forest Service Atlantic Forestry Centre 1350 Regent Street P.O. Box 4000 Fredericton NB Canada E3C 2G6 gsc.nrcan.gc.ca 2 Faculty of Forestry and Environmental Management University of New Brunswick Fredericton NB Canada E3B 6C2 unb.ca 3 Department of Biology University of Victoria Victoria, BC Canada V8W 2Y2 uvic.ca 4 Department of Biosystems Engineering University of Manitoba E2-376 EITC Winnipeg MB Canada R3T 5V6 umanitoba.ca 2011 18 12 2011 2011 18 04 2011 17 08 2011 06 09 2011 2011 Copyright © 2011 Christopher J. Lucarotti et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

The alimentary canal of Neodiprion abietis larvae is a straight tube divided into foregut, midgut, and hindgut. Posterior to the mouth, the foregut is further divided into the pharynx, esophagus (crop), and proventriculus, all of which are lined with cuticle. A pair of muscular, chitin-lined pouches branch off the anterior foregut and lie lateral to the alimentary canal. Gastric caeca are located at the anterior end of the midgut, where the peritrophic membrane is formed and was observed throughout the midgut. A single layer of midgut columnar epithelial cells abuts on the basal lamina at one end with microvilli extending into the gut lumen at the other. Nidi of regenerative cells were observed between columnar epithelial cells at the basal lamina. Malpighian tubules are attached to the posterior end of the midgut. The hindgut consists of the pylorus, a muscular ileum connecting to a bulbous rectum, which then opens to the anus.

Erratum to “Histology of the Larval Neodiprion abietis (Hymenoptera: Diprionidae) Digestive Tract” dx.doi.org/10.1155/2012/984138