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Morphological study of the hindgut in larvae of Anticarsia gemmatalis Hubner (Lepidoptera:Noctuidae)
被引:23
|作者:
Levy, SM
Falleiros, AMF
Moscardi, F
Gregório, EA
Toledo, LA
机构:
[1] Univ Estadual Paulista Julio Mesquita Filho, Depto Morfol, Inst Biociencias, BR-18618000 Botucatu, SP, Brazil
[2] UEL, Ctr Ciencias Biol, Dept Histol, Londrina, PR, Brazil
[3] Ctr Nacl Pesquisa Soja, Londrina, PR, Brazil
关键词:
digestive tube;
histology;
velvetbean caterpillar;
insect;
D O I:
10.1590/S1519-566X2004000400005
中图分类号:
Q96 [昆虫学];
学科分类号:
摘要:
The velvetbean caterpillar (Anticarsia gemmatalis Hubner) has great economical interest as it affects the soybean crop worldwide. This work describes the morphology of the hindgut in A. gemmatalis larvae emphasizing their histological aspects. Distinct morphological regions, identified as pylorus, ileum, colon and rectum, constitute the hindgut of A. gemmatalis. A thin cuticular intima, a simple epithelium and muscular layer compose the hindgut wall, independent of the region. Microspines project from the cuticular intima in the posterior interstitial ring, between the midgut and the hindgut, and the posterior pyloric region. A single circular layer of large fibers, differing from the other hindgut regions that present two layers of muscular fibers, forms the rectal musculature. The distal ends of Malpighian tubules cross the rectum wall and constitute the cryptonephric excretory system typical in Lepidoptera larvae.
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页码:427 / 431
页数:5
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