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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 94, No. 6, 1999, pp. 837-839
Bioline Code: oc99239
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 94, No. 6, 1999, pp. 837-839

 en Biology of Triatoma pallidipennis Stal 1945 (Hemiptera: Reduviidae: Triatominae) under Laboratory Conditions
Martínez-Ibarra, José Alejandro & Katthain-Duchateau, Gala

Abstract

Aspects related to hatching, life time, mortality, feeding behaviour and fecundity for each stage of Triatoma pallidipennis life-cycle were evaluated. The hatching rate observed for 200 eggs was 60% and the average time of hatching was 18 days. Eighty nymphs (N) (40%) completed the cycle and the average time from NI to adult was 168.711.7days. The average span in days for each stage was 18.0 for NI, 18.5 for NII, 30.0 for NIII, 35.7 for NIV and 50.1 for NV. The number of bloodmeals at each nymphal stage varied from 1 to 5. The mortality rate was 9.17 for NI, 5.5 for NII, 6.8 for NIII 4.17 for NIV and 13.04 for NV nymphs. The average number of eggs laid per female in a 9-month period was 498.6. The survival rates of adults were 357217.9 and 262.53167.7 for males and females respectively.

Keywords
Triatoma pallidipennis - biology - ethology - laboratory conditions

 
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