Life Cycle and Reproductive Patterns of Triatoma rubrofasciata (De Geer, 1773) (Hemiptera: Reduviidae), under Laboratory Conditions

Memórias do Instituto Oswaldo Cruz

Marina Vianna Braga²  Zeneida Teixeira Pinto¹  Marli Maria Lima² 

[1] ,Instituto Oswaldo Cruz

关键词: Triatoma rubrofasciata;    temperature;    feeding;    colony;    reproductive pattern;   

DOI  :  10.1590/S0074-02761998000400022

来源: SciELO

【 摘 要 】

The life cycle and reproductive patterns of Triatoma rubrofasciata were studied along with laboratory conditions for the establishment of a prolific colony. The insects were divided into four groups: two of them were maintained at room temperature (20.5°C to 33°C and 85% ± 5% of relative humidity), the other two in a climatic chamber (CC) (temperature: 29°C, humidity: 80% ± 5%). The groups were fed weekly or fortnightly on Swiss mice. The females from the group kept in the CC and fed weekly had longer life span, as well as a higher number of eggs, fertile eggs and hatchings; the group kept in the CC and fed fortnightly had a shorter life span for the 1st, 2nd and 3rd instars and a lower mortality rate for all instars. It was concluded that a constant high temperature (CC at 29°C) is the most suitable condition for the maintenance of a colony of T. rubrofasciata regardless of the interval between repasts.

【 授权许可】

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