v SYNOPSIS OF THE GENERA. XX? 



Antennae of the female pectinate. Cerura. 



Antennae of the female serrate. Notodonta. 



Antennae of both sexes pectinate. Ichthyura. 



Antennae of the male pectinate, naked at the apex. Heterocampa. 



Antennae of the male not pectinate to the apex. Edema 



Antennae setaceous, minutely ciliated. Budryas. 



Antennae of male minutely pectinated ; of female minutely serrated. 



Datana. 

 Antennae moderately pectinated. Nadata. 



Fam. XIV. Arctiidae. 



Stature robust ; stemmata conspicuous ; maxillae short ; antennas 

 moderate, those of the female, when not nearly obsolete, bipectinate 

 or ciliate, sometimes serrate or simple ; abdomen thick, often macu- 

 late ; frenulum conspicuous ; flight often heavy, nocturnal. 



Thorax not fasciculate, wings rounded. Arctia. 



Primaries not dilated ; body maculate. Spilosoma. 



Wings rather long, third article of palpi very short. Lophocampa. 



Body slender, third article of palpi globose. Nemeophyla. 



Antennae simple, ciliate ; abdomen not extending beyond the wings ; 



costa of primaries straight. Fhragmatobia. 



Primaries long. Ecpantheria. 



Antennae in both sexes simply ciliate, with two strong setas at each 



joint. Callimorpha. 



Body fusiform ; antennae minutely pectinate. Apantesis. 



Antennae deeply pectinate ; tibiae with only terminal spurs. Orgyia. 



Antennae simple in both sexes those of the male subpilose below. 



Deiopeia. 

 Antennae of male deeply pectinate of female moderately so. Dasychira. 



Fam. XV. Lithosiidae. 



Body slender, elongate ; no stemmata. Antennae usually ciliate 

 or simple. Thorax not crested. Abdomen not extending beyond 

 the wings, or very little. Wings often subelliptical, primaries nar- 

 row, secondaries often twice as wide as the primaries. Frenulum 

 conspicuous. In repose, the primaries plicate. 



Antennae setaceous, simple ; wings not long. Eustixia. 



Antennae setaceous, simple, shorter than the body ; wings narrow. 



Eubaphe. 

 Antennae setaceous, simple, minutely pubescent ; wings long, narrow. 



Mieza. 



