Aspectos da biologia da reprodução e longevidade de Cochliomyia macellaria (Fabricius) (Diptera, Calliphoridae), em condições experimentais. I. casais agrupados

Biological aspects of the reproduction and longevity of Cochliomyia macellaria (Fabricius) (Diptera, Calliphorjdae) under experimental conditions. I. grouped pairs

Cochliomyia macellaria; bowlfy; rearing methods; reprodutive behavior; secondary screwworm

Aspectos da biologia da reprodução e longevidade de Cochliomyia macellaria (Fabricius) (Diptera, Calliphoridae), em condições experimentais. I. casais agrupados

Biological aspects of the reproduction and longevity of Cochliomyia macellaria (Fabricius) (Diptera, Calliphorjdae) under experimental conditions. I. grouped pairs

Sandra Lucia Cunha-e-Silva^I; Eliane M.V. Milward-de-Azevedo^II

^IDepartamento de Estudos Básicos e Instrumentais, Campus de Itapetinga, Universidade Estadual do Sudoeste da Bahia. 45700-000 Itapetinga, Bahia, Brasil

^IIDepartamento de Parasitologia Animal, Universidade Federal Rural do Rio de Janeiro. 23851-970 Seropédica, Rio de Janeiro, Brasil

ABSTRACT

In the present study we estimed the longevity and reproductive potential of Cochliomyia macellaria (Fabricius, 1775), in different densities of grouped pairs, as a function of time of collection. The study was divided into two phases and conducted in an incubator regulated at 27oC, 65±10% RH and 14 hours photoperiod. Forty and 20 pairs/replication were used, corresponding to the third and fourth generation originating from a laboratory colony. Egg masses were collected at 8:00 and 17:00 hours daily. The results obtained were influenced by the variables established. The ovipositing peak occurred 20 days after the emergence of females belonging to the third generation. This peak occurred earlier in fourth generation females, i.e., 11 days after imago emergence. These peaks corresponded to a total of 0,30 and 0,23g of egg masses, respectively. The survival curves for adults were estimated by the Weibull method.

Key words:Cochliomyia macellaria, bowlfy, rearing methods, reprodutive behavior, secondary screwworm

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Recebido em 20.VIII.1994; aceito em 28.XII.1996.

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Datas de Publicação

• Publicação nesta coleção
  13 Jul 2009
• Data do Fascículo
  1996

Histórico

• Recebido
  20 Ago 1994
• Aceito
  28 Dez 1996