Megaselia scalaris (Loew, 1866) (Diptera, phoridae) is a cosmopolitan fly species used in forensic science, and has been developed as a laboratory model species. They feed on decaying corpses as well as a wide variety of organic matter, and previous studies have even found them feeding on liquid paint or shoe polish, suggesting the possibility that they could breakdown industrial compounds. To test this possibility, we fed M. scalaris on a variety of industrially obtained materials and found that it was unable to complete its life cycle, dying at the larval stage, with the majority of compounds tested. However, when fed on modeling clay, a substrate that contains starch and inedible compounds, it was able to complete its life cycle. On this diet we observed increased larval development time, decreased pupal development time and a shortened adult life span. Additionally, pupae and adult flies were smaller than control flies. Contrary to previous reports, we find no evidence that M. scalaris is able to survive on modern formulations of liquid paint.
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http://dx.doi.org/10.7717/peerj.1085 | DOI Listing |
Insects
October 2024
Teramo, Diagnostic Laboratory, Istituto Zooprofilattico Sperimentale dell'Abruzzo e Molise (IZSAM), 86100 Campobasso, Italy.
The and parasitoid flies of the honeybee were found to infest apiaries of different European and Mediterranean countries but their prevalence and impact on apiary health are little known. Therefore, in this study, quantitative PCR (qPCR)-based methods were developed for their rapid detection directly in hive matrices. The newly developed qPCR assays were targeted at the mitochondrial cytochrome oxidase subunit I () gene for the and the cytochrome B (B) gene for the The tests were preliminarily applied to 64 samples of adult honeybees and hive debris collected in the Abruzzo and Molise regions, Central Italy, and the Republic of Kosovo showing that both flies occur in the two countries and more frequently in Italy.
View Article and Find Full Text PDFInsects
September 2024
College of Life Science and Engineering, Shenyang University, Shenyang 110044, China.
Necrophagous phorid flies are common insects found on buried corpses, and their developmental data play a crucial role in estimating the post-burial interval (PBI). This study aimed to investigate the effects of soil type and moisture content on some life cycle parameters of two forensically important insects, (Loew, 1866) and (Bigot, 1857) (Diptera: Phoridae). Larval and pupal survival, development time, and larval body length of and were observed in three different soil types (loamy sand, sandy loam A, and sandy loam B) with six moisture contents (0%, 20%, 40%, 60%, 80%, and 100%).
View Article and Find Full Text PDFSci Justice
September 2024
National Autonomous University of Mexico, National School of Forensic Sciences, Mexico City, Mexico. Electronic address:
J Med Entomol
November 2024
Toxicology and Chemistry Laboratory, National School of Forensic Sciences, National Autonomous University of Mexico (UNAM), Mexico City, Mexico.
Forensic entomology plays a crucial role in estimating the minimum postmortem interval through the study of insect larvae found at crime scenes. The precision of this estimation relies on various biotic and abiotic elements that simultaneously influence insect growth and development, encompassing factors such as temperature, humidity, photoperiod, diet, and the existence of xenobiotics in decomposing tissues. Despite numerous studies on the influence of these factors, including the impact of xenobiotics, there are currently no robust tools available for making corrections to this estimation considering concurrently all variables.
View Article and Find Full Text PDFJ Arthropod Borne Dis
September 2023
Department of Vector Biology and Control of Diseases, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Background: flies are smooth, low upkeep and safe model organisms, they can be effortlessly used in different fields of life sciences like genomics, biotechnology, genetics, disease model, and -based approaches to fight vectors and the pathogens they transmit.
Methods: Fruit fly specimens were collected in 25 districts (14 provinces) of Iran and their morphological recognition was proven by molecular analysis based on sequence homology of mitochondrial COI barcode region. Essential information and specific requirements ere provided for laboratory rearing of .
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