Description
On average, the Southern Cloudywing is usually slightly smaller than the North Cloudywing (Thorybes pylades) and about the same size as the Confused Cloudywing. The palps are whitish with a white ring around the eye. There is a white spot on the bend of the antennal club. Males lack a fore wing costal fold. The upper side of the wings is dark brown with the fore wing submarginal area having an aligned row of glassy white spots. Near the fore wing costa is a conspicuous spot in the shape of an hourglass (in spring forms this spot is lacking). In the subapical area there are three to four spots that are either all connected as if they were one mark (summer form) or with the bottom spot slightly offset (spring form). The underside of the wings is mottled dark brown with two darker brown bands. In some cases the hind wing may have a variable amount of frosting near the margin. Its wingspan measures 32–38 mm (1.3–1.5 in).
Read more about this topic: Thorybes Bathyllus
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