Comparative fly species composition on indoor and outdoor forensic cases in Malaysia

Syamsa Rizal Abdullah, Baharudin Omar, Firdaus Mohd Salleh Ahmad, Hidayatul Fathi Othman, Shahrom Abd Wahid

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Forensic entomology refers to the science of collection and analysis of insect evidence in order to determine the minimum time period since death. This study aimed to investigate the occurrence of forensically important flies on 34 human remains referred to Universiti Kebangsaan Malaysia Medical Centre over a period of three years. Entomological specimens were collected at the death scenes and/or during autopsies. Live specimens were reared into adults while preserved specimens were processed for species identification. Five families, seven genera and nine species of flies were identified from human remains. The results of the study showed Chrysomya megacephala (Calliphoridae) maggots occurred on corpses with the highest frequency (70.6%), followed by Ch. rufifacies (Calliphoridae) (44.1%), sarcophagid fly (Sarcophagidae) (38.2%), Synthesiomya nudiseta (Muscidae) (20.6%), Megaselia scalaris (Phoridae) (14.7%), Lucilia cuprina (Calliphoridae) (5.9%), Ch. nigripes (Calliphoridae) (5.9%), Eristalis spp. (Syrphidae) (5.9%) and Hydrotaea spinigera (Muscidae) (2.9%). The greatest fly diversity occurred on remains recovered indoors (eight species) compared to outdoors (three species). Whilst, single and double infestations were common for both indoor and outdoor cases, multiple infestation of up to six species was observed in one of the indoor cases. Although large numbers of fly species were found on human remains, the predominant species were still those of Chrysomya, while S. nudiseta was found only on human remains recovered from indoors. The present study provides additional knowledge in the context of Malaysian forensic entomology and the distribution of forensically important flies which is of relevance to forensic science.

Original languageEnglish
Pages (from-to)41-46
Number of pages6
JournalJournal of Forensic and Legal Medicine
Volume45
DOIs
Publication statusPublished - 1 Jan 2017

Fingerprint

Malaysia
Diptera
death
science
Entomology
Muscidae
Sarcophagidae
Forensic Sciences
evidence
Cadaver
Larva
Insects
Autopsy
Body Remains
time

Keywords

  • Chrysomya
  • Death
  • Flies
  • Forensic entomology
  • Malaysia

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Law

Cite this

Comparative fly species composition on indoor and outdoor forensic cases in Malaysia. / Abdullah, Syamsa Rizal; Omar, Baharudin; Ahmad, Firdaus Mohd Salleh; Othman, Hidayatul Fathi; Abd Wahid, Shahrom.

In: Journal of Forensic and Legal Medicine, Vol. 45, 01.01.2017, p. 41-46.

Research output: Contribution to journalArticle

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abstract = "Forensic entomology refers to the science of collection and analysis of insect evidence in order to determine the minimum time period since death. This study aimed to investigate the occurrence of forensically important flies on 34 human remains referred to Universiti Kebangsaan Malaysia Medical Centre over a period of three years. Entomological specimens were collected at the death scenes and/or during autopsies. Live specimens were reared into adults while preserved specimens were processed for species identification. Five families, seven genera and nine species of flies were identified from human remains. The results of the study showed Chrysomya megacephala (Calliphoridae) maggots occurred on corpses with the highest frequency (70.6{\%}), followed by Ch. rufifacies (Calliphoridae) (44.1{\%}), sarcophagid fly (Sarcophagidae) (38.2{\%}), Synthesiomya nudiseta (Muscidae) (20.6{\%}), Megaselia scalaris (Phoridae) (14.7{\%}), Lucilia cuprina (Calliphoridae) (5.9{\%}), Ch. nigripes (Calliphoridae) (5.9{\%}), Eristalis spp. (Syrphidae) (5.9{\%}) and Hydrotaea spinigera (Muscidae) (2.9{\%}). The greatest fly diversity occurred on remains recovered indoors (eight species) compared to outdoors (three species). Whilst, single and double infestations were common for both indoor and outdoor cases, multiple infestation of up to six species was observed in one of the indoor cases. Although large numbers of fly species were found on human remains, the predominant species were still those of Chrysomya, while S. nudiseta was found only on human remains recovered from indoors. The present study provides additional knowledge in the context of Malaysian forensic entomology and the distribution of forensically important flies which is of relevance to forensic science.",
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