Shiravi Ah, Mostafavi R, Akbarzadeh K, Oshaghi Ma
Department of Biology, Islamic Azad University, Damghan Branch, Iran.
Iran J Arthropod Borne Dis. 2011;5(1):54-62. Epub 2011 Jun 30.
The aim of his study was to determine development time and thermal requirements of three myiasis flies including Chrysomya albiceps, Lucilia sericata, and Sarcophaga sp.
Rate of development (ROD) and accumulated degree day (ADD) of three important forensic flies in Iran, Chrysomya albiceps, Lucilia sericata, and Sarcophaga sp. by rearing individuals under a single constant temperature (28° C) was calculated using specific formula for four developmental events including egg hatching, larval stages, pupation, and eclosion.
Rates of development decreased step by step as the flies grew from egg to larvae and then to adult stage; however, this rate was bigger for blowflies (C. albiceps and L. sericata) in comparison with the flesh fly Sarcophaga sp. Egg hatching, larval stages, and pupation took about one fourth and half of the time of the total pre-adult development time for all of the three species. In general, the flesh fly Sarcophaga sp. required more heat for development than the blowflies. The thermal constants (K) were 130-195, 148-222, and 221-323 degree-days (DD) for egg hatching to adult stages of C. albiceps, L. sericata, and Sarcophaga sp., respectively.
This is the first report on thermal requirement of three forensic flies in Iran. The data of this study provide preliminary information for forensic entomologist to establish PMI in the area of study.
本研究的目的是确定三种蝇蛆病苍蝇，即白头丽蝇、丝光绿蝇和麻蝇的发育时间和热需求。
通过在单一恒温（28°C）下饲养个体，使用特定公式计算伊朗三种重要法医苍蝇，即白头丽蝇、丝光绿蝇和麻蝇在四个发育事件（包括卵孵化、幼虫阶段、化蛹和羽化）中的发育速率（ROD）和积温（ADD）。
随着苍蝇从卵发育到幼虫再到成虫阶段，发育速率逐步下降；然而，与麻蝇相比，丽蝇（白头丽蝇和丝光绿蝇）的发育速率更大。所有这三个物种的卵孵化、幼虫阶段和化蛹时间分别约占成虫前期总发育时间的四分之一和一半。总体而言，麻蝇发育所需的热量比丽蝇更多。白头丽蝇、丝光绿蝇和麻蝇从卵孵化到成虫阶段的热常数（K）分别为１３０－１９５、１４８－２２２和２２１－３２３度日（DD）。
这是关于伊朗三种法医苍蝇热需求的首次报告。本研究数据为法医昆虫学家在研究区域确定死亡时间间隔提供了初步信息。
