Thermal summation model and instar determination of all developmental stages of necrophagous beetle, Sciodrepoides watsoni (Spence) (Coleoptera: Leiodidae: Cholevinae).
Thermal summation model and instar determination of all developmental stages of necrophagous beetle, Sciodrepoides watsoni (Spence) (Coleoptera: Leiodidae: Cholevinae).
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作者：
Jakubec P
食尸甲虫在法医昆虫学研究中的代表性不足，尽管它们在该领域的不可否认的实用性。在本文章中，信息介绍了有关的发育生物学和龄测定的Sciodrepoides watsoni（斯宾塞，1813年），一个非常常见的物种发生在整个泛北极地区。将野生收集的甲虫保持在恒温（12、15、18、21和28 °C）的气候室中，并定期记录它们的发育。计算了各发育阶段的热积累模型参数和标准误差。这些模型在当地人群中进一步验证后，可用于法律的调查中死亡时间的估计。华生尼。一个额外的方法，为今后的研究，基于尺寸的特性，解决龄识别偏差。该方法提供了S的估计值（平均值、标准误和标准差）。用于初步确定幼虫龄期的沃森氏幼虫头囊宽度。该方法可以与其他形态特征一起使用，以提高龄期确定的准确性。
Necrophagous beetles are underrepresented in forensic entomology studies despite their undeniable utility for the field. In the present article, information is presented regarding the developmental biology and instar determination of Sciodrepoides watsoni (Spence, 1813), a very common species occurring across the Holarctic region. Wild collected beetles were kept in climate chambers at constant temperature (12, 15, 18, 21 and 28 °C) and their development was regularly documented. Parameters of thermal summation models and standard errors were calculated for each developmental stage. These models may be used for an estimation of post-mortem interval in legal investigations after further validation on local populations of S. watsoni. An additional methodology is introduced for future studies of size-based characteristics, addressing instar identification bias. The methodology provided estimations (mean, standard error and standard deviation) of S. watsoni larval head capsule width for preliminary larval instar determination. The methodology may be used with other morphological features to improve instar determination accuracy.