Sarcophagid abdominal pattern data [dataset]

Abstract

Although well observed in the literature, the colour pattern and inversion thereof on the abdomens of Sarcophaga spp. have not been studied in detail. These features were described through the use of light photography and scanning electron microscopy in this study. The structural colour mechanism responsible for this colour pattern and inversion was identified to be due to diffraction gratings, where dense, specifically-oriented microtrichosity resulted in ordered, repeated nanostructures that produce the colouration. Three microsetae morphs were described. It is theorised that the colour pattern and inversion thereof may serve a functional value as a form of crypsis and/or disruptive colouration. It may also serve a thermoregulatory function. These theories require further study. The observed abdominal colour pattern and inversion have also been recorded in other species and genera of flies, which should be prioritised for future research to expand upon this study.