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1 March 2000 Comparative Anatomical and Histological Study of the Alimentary Canal of the Dendroctonus frontalis (Coleoptera: Scolytidae) Complex
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Abstract

In this study we compared the anatomy and histology of the alimentary canal of Dentroctonus approximatus Dietz, D. mexicanus Hopkins, D. frontalis Zimmermann, and D. brevicomis LeConte. The results show that these species share similar characteristics, and their structural pattern is comparable to that observed in other Dendroctonus species. These 4 species have characteristics not found in other bark beetle genera in the esophagus, crop, proventriculus, and hindgut. The close relationship of the Malpighian tubules to posterior foregut, anterior midgut, and distal hindgut is also different. Additionally, the midgut of the D. frontalis complex species shows a great cellular diversity, which suggests that this region may be involved in pheromone production.

Elba Díaz, Ramón Cisneros, and Gerardo Zúñiga "Comparative Anatomical and Histological Study of the Alimentary Canal of the Dendroctonus frontalis (Coleoptera: Scolytidae) Complex," Annals of the Entomological Society of America 93(2), 303-311, (1 March 2000). https://doi.org/10.1603/0013-8746(2000)093[0303:CAAHSO]2.0.CO;2
Received: 1 December 1998; Accepted: 1 June 1999; Published: 1 March 2000
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