18/01/2025
This handsome, colourful, creature is a member of the Bristil Fly family, namely, Rutilia (Ameniamima) Quadripunctata, and as such is the largest of the Parasitic Blowfly Species , measuring 20mm. In this adult form they feed mainly on nectar, and/or the sweet excretions obtained from scale insects and aphids, making them important members of the plant pollinators. They are often seen, December to February, sunning themselves on the trunks of eucalyptus trees, having fed upon the flowers. Females larviposit their eggs on the ground. The resultant hatched maggots bury into the ground in search of larval Coleoptera (beetle) especially Scarabaeidae (which amongst many, include Christmas beetles) on which they parasitise. Although very little is known of their life history they are deemed important, being "controllers of pests". Interestingly, the family name for blowflies is Calliphoridae, from the Greek, meaning "beautiful appearance" and although most Australians do not hold a love of the blowfly, I have to admit this particular blowfly lives up to that description