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E Generally larger than other species in this group, male about 26 mm long, female about 34 mm; light bands on tegmina which form "V"; tegmina spotted irregularly; male hind tibiae blue, female hind tibiae blue-grey; widespread in eastern Colorado.
[The only other large species in this group with a light colored "V" is Hippopedon capito, which has distinct bands or large spots on the tegmina, and yellow hind tibiae.]
E' Smaller species, lacking "V" except in Hippopedon capito and the much smaller Trachyrhachys coronata.
F Anterior and posterior margins of lateral lobes of pronotum not parallel; tegmina brown with darker spots, especially along edges; wing discs yellow or red with black band; eyes disproportionately large; hind tibiae yellow-brown; size small to medium; widespread.
F' Anterior and posterior margins of lateral lobes of pronotum nearly or quite parallel.