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Acta zoológica mexicana
versão On-line ISSN 2448-8445versão impressa ISSN 0065-1737
Resumo
NAVA-GERVASIO, Sheirla M.; ORTIZ-ORDONEZ, Esperanza e URIA-GALICIA, Esther A.. Estudio anatomo-histológico del sistema digestivo de Stenomacra marginella (Eric-Schaeffer, 1850) (Hemiptera: Heteroptera: Largidae). Acta Zool. Mex [online]. 2007, vol.23, n.3, pp.49-57. ISSN 2448-8445.
The anatomical and histological study of the digestive system of Stenomacra marginella (Herrich-Schaeffer 1850), was made, to know its adaptations and understand the digestive and adsorptive processes. The results show, that the digestive tube of this specie has the same general structural pattern that is characteristic of the insects, present the following differences with other sap sucker Hemiptera: absence of gastric caeca and peritrofhic membrane, presence of granular unicellular glandular cells and glandular tissue surrounding the midgut. This, together with the direct observations of feeding from diverse sources (organic waste and sap), suggest that this specie is omnivore and not phytophagous or poliphagous.
Palavras-chave : digestive system; histology; anatomy; Stenomacra marginella; Hemiptera.