American Rubyspot

Males are large with an iridescent red head and thorax. The abdomen is iridescent green getting darker with age. The caudal appendages are pale and the wings have at least the basal fourth red, although the whole wing of teneral individuals may be amber. A pterostigma is present, but see discussion below. Females are largely iridescent green but with wing color duller than in males. The abdomen is pale laterally, including ovipositor. There is a pale narrow mid-dorsal line running the length of the abdomen.