Christopherson C, Gibo D L
University of Toronto, Mississauga, Ontario, Canada.
J Forensic Sci. 1997 Jan;42(1):71-3.
Traditional entomological methods of estimating postmortem interval from developmental stages of fly larvae associated with the body are based on the premise that older larvae are not recruited from the surrounding environment. We found that food deprived second and third instar larvae of the fleshfly, Neobellieria bullata Parker, can locate beef liver over a distance of 33 cm, apparently by using chemical cues, and can crawl to the food within 90 min. The implications of these results are discussed with respect to methods of estimating postmortem interval by calculating rates of fly larvae development.
传统的通过与尸体相关的蝇幼虫发育阶段来估计死后间隔时间的昆虫学方法是基于这样一个前提，即较老的幼虫不会从周围环境中被吸引过来。我们发现，饥饿的麻蝇科新麻蝇属的二龄和三龄幼虫能够在33厘米的距离内找到牛肝，显然是通过化学信号，并且能够在90分钟内爬到食物处。本文结合通过计算蝇幼虫发育速率来估计死后间隔时间的方法对这些结果的意义进行了讨论。
