DescriptionThe face is dark with brilliant green eyes. The thorax is metallic green-bronze and, unlike those of many Striped Emeralds, has no pale marks on the sides. The abdomen is black after segment 4 and the male’s is widest at segment 8. Male’s appendages are forked in views from below and the side. Female’s vulvar lamina shown in figure. Length: ♂ 45mm, ♀ 46mm.
Flight PeriodB.C., early May to early September; Yukon, late May to early August.