Evidence map›Paper›PMID 42604878›Full record

ArticleInternational journal of legal medicine2026

Geographical distribution and seasonality of insect species and gut microbiota of fly larvae from 65 real cases in China.

Fengqin Yang, Lele Tian, Yang Xia, Chengxin Ye, Hai Wu, Hao Wang, Yuanxing Wang, Shaojiang Guo, Nan Guo, Junbo Yang and 9 more

Abstract read
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Article in International journal of legal medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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4 · The record

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5 · Who and what money

Authors and funding

19 authors.

Fengqin Yang *Department of Forensic Science, Xiangya School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410013, China.
Lele Tian *Department of Forensic Science, Xiangya School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410013, China.
Yang XiaDepartment of Forensic Science, Xiangya School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410013, China.
Chengxin YeDepartment of Forensic Science, Xiangya School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410013, China.
Hai WuDepartment of Forensic Science, Xiangya School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410013, China.
Hao WangDepartment of Forensic Science, Xiangya School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410013, China.
Yuanxing WangPublic Security Forensic Center of Haidian, Haidian, Beijing, 100000, China.
Shaojiang GuoPublic Security Forensic Center of Haidian, Haidian, Beijing, 100000, China.
Nan GuoPublic Security Forensic Center of Haidian, Haidian, Beijing, 100000, China.
Junbo YangPublic Security Forensic Center of Haidian, Haidian, Beijing, 100000, China.
Jiasheng SunPublic Security Bureau of Changsha, Changsha, Hunan, 410005, China.
Yi LiPublic Security Bureau of Changsha, Changsha, Hunan, 410005, China.
Zhongxiu TaoPublic Security Bureau of Shaoyang, Shaoyang, Hunan, 422000, China.
Xinquan XiongPublic Security Bureau of Shaoyang, Shaoyang, Hunan, 422000, China.
Xiaojiang HuangPublic Security Bureau of Shaoyang, Shaoyang, Hunan, 422000, China.
Taotao XuPublic Security Bureau of Yancheng, Yancheng, Jiangsu, 224001, China.
Xiaohui LiuPublic Security Bureau of Zibo, Zibo, Shandong, 255000, China.
Yanjie ShangDepartment of Forensic Science, Xiangya School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410013, China. shangyj@csu.edu.cn.
Yadong GuoDepartment of Forensic Science, Xiangya School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410013, China. gdy82@126.com.ORCID https://orcid.org/0000-0001-7468-8061

Funding

National Natural Science Foundation of China 82402196National Natural Science Foundation of China 82572150Natural Science Foundation of Hunan Province 2024JJ6546
6 · The paper itself

Abstract

Forensic entomology can be pivotal for minimum postmortem interval (PMImin) estimation. Case-based studies can support forensic investigations and guide laboratory research, but systematic data from real cases in China remain limited. In this study, 65 forensic entomology cases collected from 2017 to 2024 in two regions of China, Beijing and Hunan, were analyzed to characterize necrophagous insect occurrence patterns and larval gut microbiota. A total of 30 colonizing insect species from 11 families were identified. Lucilia sericata, Chrysomya megacephala, and Sarcophaga crassipalpis were the most frequently recorded species. Diptera, especially Calliphoridae and Sarcophagidae, were mainly associated with shorter postmortem intervals, whereas coleopteran taxa were more often observed in longer-interval cases. In addition, insect occurrence showed clear geographical distribution and seasonality: L. sericata and S. crassipalpis predominated in Beijing cases, whereas C. megacephala and Sarcophaga peregrina were more frequent in Hunan cases. Overall species diversity was highest in summer, whereas only Calliphora vicina and Aldrichina grahami were observed in winter. 16S rRNA gene sequencing of larval gut microbiota revealed a stable core microbiome across diverse cases and species, including Ignatzschineria, Clostridium, Peptostreptococcus, Vagococcus, and Peptoniphilus. This study provides regional forensic entomology reference data and characterizes the gut microbiota of fly larvae collected directly from human remains in police casework, offering a useful basis for future forensic investigations and laboratory studies.

Indexed as

DipteraFeeding BehaviorGastrointestinal MicrobiomePostmortem ChangesSeasonsAnimalsCalliphoridaeChinaForensic EntomologyHumansLarvaLucilia sericataRNA, Ribosomal, 16SRNA, Ribosomal, 16SCaseworkForensic entomologyLarval gut microbiotaNecrophagous insectsPostmortem interval

Identifiers

PMID42604878

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.