North American Range
Males perch on vegetation, usually on hilltops, seeking females. Some males appear to use the same perch throughout their lives (~ 2 weeks). Females lay eggs singly on the underside of a host plant leaflet. Caterpillars feed on leaves and live in shelters of rolled or tied leaves. Fully-grown caterpillars overwinter.
Slightly smaller than Northern Cloudywing. Hindwing is elongated. Upperside is dark brown; forewing has a wide band composed of aligned transparent spots. The Southern Cloudywing differs from the Northern Cloudywing by its more prominently angular white spots on the forewing, the largest of which is hourglass-shaped, and its silvery-gray palpi (dark brown in Northern Cloudywing). Male lacks a costal fold.
Only two known records: 10 June 2004 (J. Burkert) in Bellows Falls – 2 survey block and 16 June 2006 (K. Kluge and T. Rosenmeier) in Wallingford-1.
Distribution and Habitat
This species has extended its range eastward and northward since Scudder‘s time. In Massachusetts Forbes (1960) reported it “much commoner in recent years than in the early 1900s.” Larvae feed on various plants in the pea family (Fabaceae) including beggar’s ticks (Desmodium), bush clover (Lespedeza), clover (Trifolium), milkvetch (Astragalus), fuzzybean (Strophostyles), and wild bean (Glycine).