Genus. Geometra. Subg. Angerona, Duponch, Steph. Hipparchus p. Leach. Curt.
Geom. (Angerona) Serrata. Alis luteo-fulvis dentatis, fasciâ latâ apicali maculâ basali anticarum fasciâque basali posticarum ferrugineis. (Expans. Alar. 2 unc. 3 lin)
Syn. Phal. (Noctua) Serrata, Drury, App. v. 2.
Habitat: New York; taken on the 26th of June.
Upper Side. Antennæ and head of a reddish buff colour, the former setaceous. Tongue very small and spiral. Thorax and abdomen yellow buff colour; as are all the wings in general. The anterior having a bar of brown red colour, which begins at the tips, and runs across the wings, almost to the middle of the posterior edge; occupying all that space along the external margin. At the base is a small cloud of the same colour, but much fainter. Posterior wings with a broad marginal bar of the same brown red. A small faint line likewise crosses these wings. The buff ground is sprinkled all over with faint, irregular, dark brown spots, that in some specimens are scarcely visible. All the wings are dentated; the lower ones most deeply.
Under Side. Wings yellow buff, with brown red markings, as on the upper side, but less distinct. The irroration stronger and plainer, being also sprinkled over the brown bars.
PLATE XXI.
ARGYNNIS PHALANTA.
Plate [XXI]. fig. 1. 2.