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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 93, No. 4, 1998, pp. 539-542
Bioline Code: oc98104
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 93, No. 4, 1998, pp. 539-542

 en Life cycle and reproductive patterns of Triatoma rubrofasciata (De Geer, 1773) (Hemiptera: Reduviidae), under laboratory conditions
Marina Vianna Braga; Zeneida Teixeira Pinto & Marli Maria Lima

Abstract

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. {P}

Keywords
Triatoma rubrofasciata - temperature - feeding - colony - reproductive pattern

 
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