Beuter L, Mendes J
Lab de Entomologia, Instituto de Ciências Biomédicas, Univ Federal de Uberlândia, Uberlândia, MG, Brasil.
Neotrop Entomol. 2013 Aug;42(4):426-30. doi: 10.1007/s13744-013-0134-4. Epub 2013 Apr 26.
Chrysomya albiceps (Wiedemann) has been encountered breeding in animal carcasses and human bodies in many geographical regions. This species is considered an important postmortem indicator for Medical Legal Forensic Entomology. Studies have also demonstrated its capacity to develop in various natural and semi-synthetic substrates. The present study was undertaken to examine the development of immature C. albiceps in four different pig tissues. Eggs of this fly were deposited in flasks containing liver, abdominal fat, meat, and brain tissues. The flasks were maintained in an incubator at 25 ± 1°C, 70 ± 10% humidity, and 12-h/12-h photoperiod until emergence of the imagoes. Samples of the larvae were taken from different tissues/substrates to be weighed and measured. Their respective rates of development were accompanied. Comparisons among data from the different tissues indicated differences in the size and rate of development of larvae of the same age. Males emerged, on average, 1 day before females. Considerations as to the differences encountered for the estimate of postmortem interval were elaborated and consequences for the accuracy of the inferences discussed. The results indicate that such inferences should consider the disparities in the development of larvae presented by this species in different tissues.
白头丽蝇（Chrysomya albiceps (Wiedemann)）在许多地理区域的动物尸体和人体中都有繁殖现象。该物种被认为是法医昆虫学中重要的死后指标。研究还表明其能够在各种天然和半合成基质中发育。本研究旨在考察未成熟的白头丽蝇在四种不同猪组织中的发育情况。将这种苍蝇的卵产在装有肝脏、腹部脂肪、肌肉和脑组织的烧瓶中。将烧瓶置于温度为25±1°C、湿度为70±10%、光周期为12小时光照/12小时黑暗的培养箱中，直至成虫羽化。从不同组织/基质中采集幼虫样本进行称重和测量，并记录其各自的发育速率。不同组织数据的比较表明，同龄幼虫的大小和发育速率存在差异。雄性平均比雌性提前1天羽化。阐述了在估计死后间隔时遇到的差异，并讨论了对推断准确性的影响。结果表明，此类推断应考虑该物种在不同组织中幼虫发育的差异。
