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The Reproductive Biology of Flesh Fly, Boettcherisca Peregrina (robineaudesvoidy, 1830) (diptera:sarcophagidae)

MD. ZAHIDUR RAHMAN MAJUMDER
Radiation Entomology and Acarology Division, Institute of Food and Radiation Biology (IFRB),Atomic Energy Research Establishment (AERE), Ganakbari, Dhaka, Bangladesh

MOHAN KUMAR DASH
Department of Zoology, University of Dhaka, Dhaka‐1000, Bangladesh.

HUMAYUN REZA KHAN
Department of Zoology, University of Dhaka, Dhaka‐1000, Bangladesh.

RAFIA AKHTAR KHAN
Radiation Entomology and Acarology Division, Institute of Food and Radiation Biology (IFRB),Atomic Energy Research Establishment (AERE), Ganakbari, Dhaka, Bangladesh

Abstract/ Executive Summary:

The reproductive biology of the flesh fly, Boettcherisca peregrina (Diptera : Sarcophagidae ) was studied in the blowfly laboratory (25 ? 30ºC, 60 ? 80% RH and 12 hrs light and 12 hrs dark) of the Institute of Food and Radiation Biology, Atomic Energy Research Establishment, Dhaka. The female reproductive system of B. peregrina comprises of two ovaries, two lateral oviducts, a common oviduct, three spermathecae, and a pair of accessory gland, a bilobed incubation pouch, vagina and genital opening. The male reproductive system B. peregrina consists of a pair of testes, a pair of vasa deferentia, a pair of accessory gland, a median ejaculatory duct, an ejaculatory sac and aedeagus. There is a general trend of gradual development of different organelles of the male and female reproductive systems from adult emergence to reproductive maturity. Protein diet was essential for proper development of female reproductive system. Oocyte development was apparent in both protein fed and protein unfed females. The mean sex?ratio of male to female was 20.2 : 14.2.

Keywords: Reproductive biology, Flesh fly, Boettcherisca peregrina

Location: Radiation Entomology and Acarology Division, Institute of Food and Radiation Biology (IFRB), Atomic Energy Research Establishment (AERE), Savar, Dhaka

Start Date: 00-04-2010

End Date: 00-03-2011

Program Area: Pest Management

Commodity: Insects

Objectives:

1. In the present research the reproductive and behavioral biology of B. peregrina was conducted in the laboratory.

Methodology:

The reproductive biology of B. peregrina, was studied in the blowfly laboratory of Radiation Entomology and Acarology Division, Institute of Food and Radiation Biology (IFRB), Atomic Energy Research Establishment (AERE), Savar, Dhaka from April, 2010 to March, 2011. The adult flies collected from the stock culture of the laboratory were dissected under a stereoscopic binocular microscope (Nikon) to observe the structure of the reproductive system. The pertinent organs of the reproductive system were cleaned up and preserved in 70% ethyl alcohol. The different components of reproductive system were photographed by using a Nikon binocular microscope. In one experiment, the effects of food on the female reproductive system of B. peregrina were studied. Fifty virgin adult females were reared throughout life with bovine liver, sugar and water in one cage (30.48 × 20.32 × 20.32 cm) treatment. In another cages 50 virgin females from the same stock culture only in another cage of the same size. In another experiment, two cages each with 50 males and females at a ratio 1 : 1 were determined the effects of mating on the reproductive system of B. peregrina. These flies were supplied with bovine liver, sugar and water. Two other cages were similarly arranged as above except that the flies were provided with sugar and water as their food. The mated flies of the two tests were isolated in separate cages (20.32 × 15.24 × 15.24 cm) to above the fecundity of the females. The records were kept on the number of eggs laid by a single female and the percentages of maggots laid. Mosts of the time, the females gave birth to 1st instar larva. The total number and undeveloped larva were counted within 24 hrs. Thirty five eggs were placed in different larval rearing bowls for pupation and emergence of the adults. The total number of the adults emerged were recorded. The sexes of the adults emerged were determined under a microscopic observation.

Source of Information: Dhaka Univ. J. Biol. Sci. 23(1): 61‐67, 2014 (January)

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The sterile insect technique (SIT), also known as sterile male technique, in which sterile males have potentiality to transmit sterility to the fertile wild female through the process of sexual mating. The sterile male technique involves mass rearing of the pest irradiating them late in the pupal stage with gamma rays and releasing the adults usually from aircraft to compete with wild males in nature. The wild females mated with released males oviposit normally and the embryos initiate development, but die before hatching. The present study on the general biology of B. peregrina will be of great value towards the development of suitable control measures including sterile insect technique either singly or as an important component of intregated pest control methods (IPM).

Knowledge Management: Journal