In addition to the genus diagnosis, the following features characterize the species:MALEBody: Markings: Opistosoma with dark or bright spots . basic colouring dark. Eyes: AER: dorsal edge recurve. Labium: Length: longer than wide. Tegulum: Shape of proximal half: proximal tegulum lobe present. Embolus: Shape: circular curved. bent counterclockwise. Distribution: Geographical Distribution: North America.COMMENTSUndescribed northern species (close to C. brevispina) that ranges from southern Mexico to Guatemala and Belize, Corythalia bicincta ranges from Panama to northern South America.They can be distinguished as follows: Northern species: a weak yellow stripe beneath the white dot on the abdomen | whitish scales on the carapace that go around the PLE | no marginal band on the carapace Corythalia bicincta: a strong yellow stripe that is split in the middle beneath the white dot on the abdomen |yellowish scales on the carapace that don't go underneath the PLE | a thick white marginal band on the carapace |