Key to Dichromorpha in the Southeastern United States
Adapted from Dakin and Hayes 1970 and Otte 1981
* note. Forewing length is variable in both species, ranging from not reaching the end of the abdomen to extending beyond the end of the abdomen.
|1||Lateral prontal carinae cut by two sulci; lateral lobes of the pronotum forming right angles with the dorsal surface|
|Lateral prontal carinae cut by one sulcus; intersection of lateral lobes and the dorsal surface of the pronotum rounded|