Técnicas de criação e alguns aspectos da biologia de Chrysomya albiceps (Wiedemann) (Diptera, Calliphoridae), em condiçoes de laboraterio

Abstract

ABSfRACf. REARlNGS METHODS AND SOME ASPECfS OF THE BIOLOGY OF CHRYSOMYA ALBICEPS (WIEDEMANN) (DIPTERA, CALLIPHORlDAE) lN LABORATORY CONDITIONS. The colony of C. albiceps (Wiedemann, 1819) was established from lalVae and adults colected in the "Estação para Pesquisa Parasitológiea W.O. Neitz" area at UFRRJ and Seropediea Distriet, Itaguai, Rio de Janeiro. (Latitude: 22°45'S; Longitude: 43°41'W and Altitude: 33 metres). The biologieal aspects of this speeies were studied in c1imatized chambers regulated at 60±10 % RH and 14 hours photophase. The duration and the viability of the lalVal and pupal stages of C. albiceps was 5,2 and 4,53 days; 95,75% and 94%, respectively. An effeet of group was obselVed on the lalVae at the first and second instar. The average weight of mature lalVae was around 75 mg, val)'ing between 12,2 to 120 mg. Only mature lalVae with average weight higher than 42 mg have originated adults. Oviposition peaks between the sixth and tenth days pos-emergenee were obselVed. Survival eUlVes of the males and females were estimated using the Weibull model.

Temperature requirements of Chrysomya albiceps (Wiedemann, 1819) (Diptera, Calliphoridae) under laboratory conditions

“…The emergence rate of adults at this temperature, however, has not been considered. Queiroz and Milward-de-Azevedo (1991), working with C. albiceps at 27 o C, observed that the minimum weight needed for adult emergence was more than 42 mg, a value close to that reported by Levot et al (1979) for Chrysomya rufifacies.…”

The effect of different proportions of males and females over the Chrysomya albiceps (Wiedemann 1819) (Diptera, Calliphoridae) biotic potential and longevity under laboratory conditions

“…Copulation of C. albiceps confirmed the results obtained by Queiroz and Milward-de-Azevedo (1991) and by . These authors, working with this species, in the proportion of one male to one female, maintained at a temperature of 27ºC, observed that the mating started on the 2nd day post-emergence.…”

“…Results of this work did not match with Queiroz and Milward-de-Azevedo (1991) and , who found C. albiceps on a 1 male/1fe-male ratio, with a maximum oviposition period of 15 to 20 days, respectively.…”

“…Marchenko (1985) ascertained that at 27ºC, C. albiceps females complete maturation of their ovaries five to six days post-emergence. Queiroz and Milward-de-Azevedo (1991) observed that oviposition started on the 5th day post-emergence and the primary peak occurred on the 6th day (0.045 g of egg-masses/female) and the secondary on the 9th day (0.025 g of egg-masses/female). , working with isolated couples and grouped C. albiceps virgin females, under the same laboratory conditions, found that the oviposition started on the 7th and 10th day, respec-tively.…”

Melia azedarach L. extracts and their activity on Musca domestica L. (Diptera: Muscidae)

“…Aliquots of the extracts A and B, and of the fractions C and D were carefully dried, traces of organic solvents eliminated under vacuum, and the organic residues bioassayed on M. domestica, a cosmopolitan diptera with high degree of synanthropy that acts as a mechanical and biological vector for enteroviruses, enterobacteria, protozoan cysts, helminth eggs and larvae, and fungi (Cox et al, 1912, Coutinho et al, 1957, Greenberg, 1971, 1973, Harwood & James, 1979Oliveira, 1999;Oliveira et al, 2002). Insects used in this study were brought up in the colony maintained in laboratory (Queiroz et al, 1991). Samples were tested in triplicate by topic application at the concentration of 100 μg/μL on groups of 50 larvae (L1) of M. domestica and on egg masses (5 mg) at the concentration of 200 μg/mg (1 μL/mg).…”