A complete morphological characterization of all life stages of the phorid fly Megaselia scalaris

Author:

Pallavi Jayakumar,Snehal Harshita,Kolipakala Rakshita Sukruth,Salazar Daniela,Hanbar Mrunal,Chiramel Larina Bejoy,Alok Jha Khushi,Venkatesh Sai Bhumica Lakshmi,Shetty Tanishka Dayanand,Madhusudan Navya,Mohan Amrutha,John Amulia,D’souza Naomi Deep,Sheet Priyanka,Nagarajan Deepesh

Abstract

AbstractMegaselia scalaris, commonly known as the scuttle fly, is a cosmopolitan species in the family Phoridae. It is an easily cultured fly species that is an emerging model organism in the fields of genetics and developmental biology. Its affinity for carrion and its predictable life cycle makes it useful in the field of forensic science for estimating the post-mortem interval (PMI) of human remains. Cases of human myasis caused by M. scalaris have also been reported in the medical literature. Despite its ubiquitous prevalence and its relevance across multiple fields, its morphology has not been adequately characterized. Here, we report the complete morphological characterization of all lifestages of M. scalaris, ranging from egg to adult. Scanning electron microscopy has enabled us to uncover morphological features and developmental processes that have previously not been reported in the literature. Our data lays the groundwork for future genetic studies: a morphological characterization of the wild type must be performed before mutants displaying different phenotypes can be identified. In this vein, we also report the observation of a acephalic, or 'headless’, adult phenotype whose study could yield insights into the process of cephalogenesis. Finally, all morphological features observed have been compiled into an ’atlas’ that should be of use to all workers in the field.

Publisher

Springer Science and Business Media LLC

Subject

Multidisciplinary

Reference36 articles.

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4. Teileche, T. D., Petrone, S., Mancuso, R. G. & Mariani, R. Taphonomic processes in a contemporary inhumation context. Megaselia scalaris (diptera, phoridae) larvae as a disturbing agent?. J. Archaeol. Sci. Rep. 47, 103734 (2023).

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