About Compsomyiops callipes (Bigot, 1877)
Compsomyiops callipes is a species of fly in the order Diptera, a group defined by having two forewings and small balancing structures called halteres, which gives the order its name meaning "two wings". As a member of the family Calliphoridae, it has bristles on its meron, a plumose arista on its antennae, and two to three notopleural bristles. As part of the subfamily Chrysomyinae, it has a setose (bristled) stem vein on its wings. This is a relatively large fly, with a total body length of approximately 6–12 mm. Its abdomen and thorax are a metallic blue color. It has a bright yellow gena, and four longitudinal lines on its pronotum. The setae along the posterior margin of its hind coxa are long and dark. Its palp, an appendage located near the mouth that functions in sensation, movement, and feeding, is clavate, meaning it is club-shaped. Its anterior spiracle and calypters are brown. Compsomyiops callipes is very similar in appearance to flies in the genus Cochliomyia, but it can be distinguished from these flies by the shape of its palp, the color of its calypters, and the arrangement of its setae (its chaetotaxy).
