The females are quite readily recognized by the prominent yellowish veins along the leading edge of the wing. In males this coloration may fade as they mature, and the legs range from light brown to dark. The abdomen is mostly red, with variable black dorsally and laterally on the terminal segments.
This combines to make them resemble Autumn Meadowhawks; the author wonders whether additional vagrants may be missed among the hordes of that species in late summer and early fall. Definitive ID of some individuals would depend on critical examination of secondary genitalia.