About Parnassius nomion Fischer De Waldheim, 1823
This species, Parnassius nomion, is similar to Parnassius apollo geminus but has several distinct features. The vitreous marginal band on its forewing is split into elongated arched spots or lunules. On the hindwing, there are dark marginal spots and more sharply defined submarginal spots; these submarginal spots develop into large vitreous half moons, particularly on the underside of the wing. The upper surface of the hindwing usually has a red basal spot. The entire upper wing surface has a distinct silky gloss, while the underside has a greasy gloss. Females are darker in color and have more prominent markings. The shaft of the antenna is whitish, the antenna club is black, and the abdomen is whitish except for a small dorsal section. In specimens that match the figure of the name-type, the costal and hind-marginal spots of the forewing have prominent red centers. Specimens with only the hind-marginal spot centered red, and all other forewing spots black, have been given the name venusi Schauf.
