COMMON GREEN BOTTLE FLY : Lucilia sericata
Wiki tells us that this fly has brilliant, metallic, blue-green or golden coloration with black markings. It has short, sparse, black bristles (setae) and three cross-grooves on the thorax. The wings are clear with light brown veins, and the legs and antennae are black. Our example is more golden than green.
It is found over much of the temperate and tropical regions of the planet.
The lifecycle of L. sericata is typical of flies in the family Calliphoridae. After the female deposits the egg, it hatches into a larva that passes through three instars as it grows, then enters prepupal and pupal stages (which can eclose quickly or overwinter depending on temperature) before emerging into the adult stage or imago. To start, the female lays a mass of eggs in carrion. The eggs hatch between nine hours and three days after being deposited on the host, with eggs laid in warmer weather hatching more quickly than those in cooler weather.
The larvae of L. sericata feed exclusively on dead organic tissue; as the eggs are laid directly into carrion, they are able to feed on the corpse on which they hatch until they are ready to pupate. The adults are more varied in their diets, eating carrion and feces, as well as pollen and nectar, as they are important pollinators in their native range and important agents of decomposition.
it has much in common with the common blue bottle fly, but is usually easily distinguishable. However it is very like the L. cuprina, and identification between them requires microscopic examination.
All glitzy for a day on the flowers.
NATURE SPOT : https://www.naturespot.org.uk/species/lucilia-sericata#:~:text=A%20green%20metallic%20%27greenbottle%27%20fly%20is%20the%20commonest,dorsocentral%20bristles%20after%20the%20suture%20on%20the%20thorax.
WIKIPEDIA : https://en.wikipedia.org/wiki/Common_green_bottle_fly#:~:text=The%20common%20green%20bottle%20fly%20%28Lucilia%20sericata%29%20is,metallic%2C%20blue-green%20or%20golden%20coloration%20with%20black%20markings.