The postembryonic development of the ocellar system of Triatoma infestans Klug (Heteroptera: Reduviidae)

Memórias do Instituto Oswaldo Cruz

Teresita C Insausti¹  Claudio R Lazzari¹ 

[1] ,Universidad de Buenos Aires Facultad de Ciencias Exactas y Naturales Departamento de BiologíaBuenos Aires,Argentina

关键词: Triatoma infestans;    ocelli;    development;    Chagas disease;   

DOI  :  10.1590/S0074-02762000000600024

来源: SciELO

【 摘 要 】

Simple eyes or ocelli coexist with compound eyes in many adult insects. The change in the morphology of the ocelli along the five larval instars of Triatoma infestans was studied by light and scanning electron microscopy. Our analysis showed that the development of the ocelli of these bugs occurs gradually along the larval life. The photoreceptor layer is present from the second-instar onwards. The cornea appears first at the imaginal stage and grows up to the 18-20th day after the last ecdysis, associated to an increase in the retinal mass. Findings are discussed in a comparative fashion and in relation to the functionality of the ocellar system in T. infestans.

【 授权许可】

CC BY   
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