Catocala nuptialis Walker, 
Range: Wisconsin south through Illinois west through the Dakotas and Oklahoma.
Larval Hostplant(s): Leadplant (Amorpha canescens).
NENHP Ranking: Tier 1, S2
Broods/Flight Times: A single brood peaking in July.
Habitat: Prairies and meadows with Leadplant.
Avg. Wingspan: Smaller Underwing, 1 1/2 – 2 Inches.
Overwintering: As an egg on woody stems.
Identification: FW nearly faintly marked with the exception of the prominent black “teardrop shaped” reniform spot. HW ground color yellow, the black outer marginal band unbroken but indented near the anal angle.
Notes: Identifying features illustrated.