Neotherina callas is a species of moth of the family Geometridae. It is a moderately common species is found at altitudes between 1,100 and 2,800 meters throughout Costa Rica. The forewing appear to be truncated at the tip. Females are noticeably larger than males. The wings are diaphanous and overlaid by a distinct pattern seen only in this species and in Neotherina xanthosa. It can be separated from the latter by the darker more greyish color and its smaller size, with a male forewing length of 18–22 mm. Females have a forewing length of 19–24 mm.