121 



The following species were examined : 

 Halisidota tesscllaris Smith and Abbot, caryae Harris 

 Buchaetias cgle Drury 

 Haploa clymene Brown 

 Utetheisa bella Linnaeus 

 Ctenucha virginica Charpentier 

 Bstigmene acraea Drury 

 Diacrisia virginica Fabricius 

 Hyphantria cunea Drury 

 Bcpantheria deflorata Fabricius 

 Apantesis virgo Linnaeus, michabo Grote, arge Drury, phyllira 



Drury, nais Drury 

 Isia isabella Smith and Abbot 



Family Liparidae 



This family, like the Arctiidae, is characterized by the presence 

 of setae arranged around the scars of the larval verrucae. In the 

 Liparidae the setae are long and coarse, and easily visible to the un- 

 aided eye. With the exception of Porthetria all the genera examined 

 show a characteristic arrangement of appendages (Fig. 105). In Por- 

 thetria the labial palpi were usually concealed by the maxillae, al- 

 though a large number of pupae show them present, as in Figure 

 105. The epicranial suture is never present. The maxillae are always 

 short, never more than two fifths the length of the wings. The legs 

 are usually shorter than in most pupae, the mesothoracic legs never 

 reaching the caudal margin of the wings. The antennae are pectinate 

 and are longer and broader in the male than in the female. The cre- 

 master is always present, smooth, longer than broad, and bears short 

 hooked setae at the distal end. 



Most of the species examined show a remarkable uniformity of 

 characters, and considerable difficulty was encountered in separating 

 the genera. The difficulty lies in the fact that there is considerable 

 difference between the sexes, not only in the length and breadth of 

 the antennae, but in the size and arrangement of other appendages. 

 In Hemerocampa the adult females are apterous, and the wings in 

 the pupa are not as long as in the males. The wings of the females 

 reach slightly over the cephalic margin of the fourth abdominal seg- 

 ment, while in the male they reach to the caudal margin of that seg- 

 ment. In Hemerocampa the dorsum of the first three abdominal seg- 

 ments is covered on each side of the meson with small vesicles. The 

 following table will serve to separate the genera of Liparidae : 



