Resumen

FLOREZ MARTINEZ, Mónica; ROJAS RODRIGUEZ, Jaime Leonel  y  ANGULO SILVA, Víctor Manuel. Biology of Eratyrus mucronatus (Hemiptera, Reduviidae, Triatominae) in laboratory conditions. Bol Mal Salud Amb [online]. 2015, vol.55, n.1, pp.69-85. ISSN 1690-4648.

Eratyrus mucronatus is a secondary vector of Chagas disease with domicilary reports in Colombia and Venezuela. There are few studies in this specie and show under laboratory conditions low hatching rates and high mortality rates. The purpose of this study was to establish conditions that will improve the fertility of this species for laboratory rearing. A laboratory colony of E. mucronatus was used and bioassays were conducted to: estimate nymphal development times, compare hatching in different environmental conditions and compare fertility using two food sources and various types of support. The average development time from egg to adult was 127.6 days, with a survival rate of 67.4 %; egg mortality was 20% and that of nymph I 16%. 60 females produced 744.5 ± 120.77 eggs weekly, and the daily oviposition rate per female was 1.19 to 2.69. The best hatching rates (80 %) were obtained in stable conditions of temperature and relative humidity (65%). The fecundity differences using two food sources and various types of support, showed no statistical significance. The present study reports data useful for knowing vital statistics such as the cycle of life, fecundity, fertility and population dynamics of Triatominae species, especially those anthropophilic or suspected of invading the home environment, it is important to assess their potential for colonization capacity as well as in studies where the use of a large number of nymphs is required.

Palabras clave : Triatominae; life cycle; fecundity; Chagas disease; biological assay.

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