Behavior of triatomines (Hemiptera: Reduviidae) vectors of Chagas' disease: III. Influence of the number of matings on the fecundity and fertility of Panstrongylus megistus (Burm. 1835) in the laboratory

Memórias do Instituto Oswaldo Cruz

Marli Maria Lima¹  Pedro Jurberg¹  Josimar Ribeiro De Almeida¹ 

[1] ,Instituto Oswaldo Cruz Departamento de Biologia Rio de Janeiro,Brasil

关键词: Chagas' disease;    reproduction;    triatomines;    Panstrongylus megistus;    doença de Chagas;    reprodução;    triatomíneos;    Panstrongylus megistus;   

DOI  :  10.1590/S0074-02761987000100006

来源: SciELO

【 摘 要 】

A study of the effect of mating in the fecundity and fertility of females of P. megistus fed on pigeon blood every 14 days, was carried out in the laboratory. Two groups were constituted: I - females which mated only once; II - females which stayed always with the males. Only 56.7% of group I females laid fertile eggs, while as much as 90% of group II females laid fertile eggs. The duration of the fertile oviposition was greater in the females which stayed always with the males. Some females of this group were able to mate up to seven times throughout their life-span. This fact render useless sterile males in the control of these insects. It is suggested that the components of pigeon's blood used for feeding the triatomines could have an influence upon the fecundity and fertility of the female sof the two groups.

【 授权许可】

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