Abstract

MARTINEZ SUAREZ, Claudia; ALMANZA RODRIGUEZ, Carlos  and  BEJARANO MARTINEZ, Eduar Elías. Estimation of development time for Lutzomyia evansi under experimental conditions. Salud, Barranquilla [online]. 2012, vol.28, n.2, pp.201-208. ISSN 0120-5552.

Objective: To estimate the mean development time for Lutzomyia evansi. Materials and methods: A laboratory colony of Lutzomyia evansi was started from sand flies collected in the urban area of the City of Sincelejo, Colombia. The colony was main-tained during three filial generations under experimental conditions of 26°C of mean tem-perature, and 94% of average relative humidity. Results: The duration of the development of Lutzomyia evansi was from 36 to 45 days. The development time for eggs was, on average, 6, 75 days (interval from 6 to 8 days). The mean duration of the different larval instars was 5,75 days in first instar (interval from 5 to 8 days), 5,75 days in second instar (interval from 4 to 7 days), 5 days in third instar (in-terval from 4 to 7 days) and 7 days in fourth instar (interval from 6 to 8 days). In the stage of pupa the development time was, on average, 9, 75 days (interval from 7 to 17 days). Conclusions: The mean development time for Lutzomyia evansi, from the female's blood meal to adult emergence, is 40 days.

Keywords : Sand fly; Lutzomyia evansi; biology; leishmaniasis; Colombia.

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