A study of sarcosaphagous insects from Arthropod in Yongzhou district of Hunan Province
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Key Words：Yongzhou,sarcosaphagous insects and Oncomelania,successions,postmortem interval
Abstract： In order to study the major species and succession of sarcosaphagous insets and Oncomelania on rabbit’s carcasses in Yongzhou district,nine rabbits were killed and placed outdoors at the same place from June to September of 2007-2009.Some species of sarcosaphagous insects and Oncomelania that appeared on the cadavers were observed and identified.14 main species belonging to 6 families were identified.The families were Museidae(Musca larvipara,Ophyra chalcogaster,Ophyra spinigera),Calliphodae (Lucilia sericata,Lucilia caesar,Lucilia illustris,Chrysomya megacephala,Chrysomya rufifacies，Chrysomya albiceps),Sacrophagidae (Boerttcherisca peregrina, Sarcophaga dux); one species from the Sepsidae,Agromyzidae (Phytomyza thalictrella),Drosophilidae (Drosophila cuaso).8 main species belonging to 5 families were from the Coleoptera.These families were the Silphidae (Nicrophorus concolor,Silpha carinata,Nicrophorus fossor,Eusilpha bicolor), Scarabaaeussaeer(Scarabaeus rugosus); Carabidae (Harpalus rufipes,Dolichus halensis), Tenebrionidae (Goncephalum pusillum) and Staphilinidae (Cafius seminitens,Aleochara pacifica).3 main species belonging to 2 families were from Hymenoptera.These were the Formicidae (Tetramorium rothneyi) and Vespidae (Vespa velutina,Vespa bicolor).One Lepidopteran species,Tegeticula altiplanella and one Oncomelanian Gastropod were found.Different species of sarcosaphagous insects appeared on different parts of the carcasses at different times.These results may be useful for estimating the time since death in Yongzhou district.