Golden Blowfly, Calliphora (Neocalliphora) stygia
Calliphora stygia males have the upper facets of their eyes distinctly larger than the lower facets, a feature also shared with the similar looking C. fulvicoxa, but lacking in males of C. hilli. Both males and females of C. hilli can be separated by having two presutural acrostichal bristle pairs (ie medial pairs before the transverse thoracic suture) instead of the three present for C. stygia and C. fulvicoxa (click here for comparison). C. fulvicoxa differs principally from C. stygia by having the postocular region adorned with golden pruinescence instead of silver, and by having the coxae concolorous with the femora whereas in the latter species they are darker.
Early April 2015
Feeding on the mystery green substance (possibly the chewed Acacia plug from a wasp burrow entrance) with a Tachinid fly, Chaetophthalmus sp. (upper).