埃及东北地区夏季暴露尸体上常见嗜尸性昆虫种类的鉴定(英文)

Identification of forensically important arthropods on exposed remains during summer season in northeastern Egypt

目的:首次鉴定埃及东北地区(东经32°15'和北纬30°36')常见嗜尸性昆虫种类及记录其演替规律。方法:观察被置于一空地上的动物尸体在夏季60 d内的腐败过程,同时捕捉出现的昆虫及记录每日的环境温度(最高及最低温度)和相对湿度(RH)。利用已知嗜尸性昆虫鉴别要点对所收集的昆虫进行分类及鉴定。结果:在研究期间的最高和最低的环境温度的均值分别为34.85℃和29.2℃,相对湿度的均值为53.5%。尸体的腐败过程主要分为4个阶段:新鲜期、肿胀期、腐败期和干化期。收集到的昆虫大部分为双翅目、鞘翅目和膜翅目昆虫。经形态学鉴定双翅目包括四科昆虫(家蝇科、厕蝇科、丽蝇科和麻蝇科),鞘翅目包括两科昆虫(皮蠹科和阎魔虫科),膜翅目仅包括厨蚁属小黑蚁。结论:为进一步研究埃及地区不同季节的嗜尸性昆虫演替奠定了基础。

To document the arthropod succession pattern and to identify forensically important species in northeastern Egypt （32° 15＇ E and 30°36＇ N） for the first time. Methods： Carcasses were exposed in an open area for 60 days during summer season. Ambient daily temperature （maximum and minimum） and relative humidity （RH） were recorded and existing keys were used for identification of different species. Results： During the period of study, the mean of maximum and minimum temperatures were 34.85 ℃ and 29.2℃ respectively, while the mean of RH was 53.5%. Four stages of decomposition were observed： fresh, bloat, decay and dry. The most abundant orders were found to be Diptera, Coleoptera and Hymenoptera. Arthropods were collected belonging to 4 families of Diptera： Muscidae, Fanniidae, Calliphoridae and Sarcophagidae. While there were 2 families of Coleoptera： Dermestidae and Histeridae. Monomorium species was the only Hymenoptera family in this study. Conclusion： The present work provided a basis for further studies dealing with insect colonization of carcasses in different seasons and locations in Egypt.