The study on biology of ُSarcophila meridionalis(Diptera:Sarcophagidae) parasitoid of Bradyporus latipes (Orthoptera:Tettigoniidae)in Chaharmahal& Bakhtiary province.
2005
Haqiqiyan, Farshad
During surveys that carried out in biology of B.latipes designe, one flesh fly species was separated as parasitoid on this grasshopper. The species was sent to natural historical museum of Sweden and identified by D. r. Thomas pape. Biology and effciency rate was studied in Dotu region of Shahrekord during 2003-2004. By starting the year, samplings were carried out weekly from different stages of parasitoid host. The speciemens were dissected in laboratory and different stages of parasitoid were studied on this grasshopper and in this surveys, larval stage numbers, larval period longevity, pupal period, adult appearance period, sex ratio, copulation method, egg incubation period, parasitism percent, number of generation in a year and hibernation were determined in this parasitoid. The larvae didn t form head capsule, therefore identification of different stages of larvae were conducted by larval color and larval length. The result indicated that this flesh fly had three larval stages, pupae stage, adult stage and egg stage. The longevity were 4-5 days for the first larval age, 6-8 days for the second larval age, 5-7 days for thirth larval age 11-9 days for pupal stage, 15-20 days for adult male stage and 17-22 days for adult female stage.This flesh fly had one generation in each year and activity period in field study and laboratory study were 49-80 days and 56-73 days respectively.Hibernation of parasitoid is as thirth larval stage in soil. The egg incubation period were 3.5 days. The parasitism percent were 22.7%.T he sex ratio were inclined to male. The highest longevity occurred in larval stage that in this period larvae active in head, thorax and abdomen of grasshopper and the highest actvity occurred in head and around digestive organs and other inner organs of grasshopper. The thirth larvae exit from grasshepper body by causing a hole and after 24-48 hours, the pupae formed in the soil. The larva had n , t canibalism manner because, numbers of larvae active in a period in a grasshopper.
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