XXIV SYNOPSIS OF THE GENERA. 



Fore wings denticulated ; 



With silvery streaks and angulated. Calliomma pars. 



Without silvery streaks, not angulated. Smerinthus. 



Fam. X. Drepanulidae. 



Body slender ; proboscis inconspicuous, palpi very short, antennae 

 longer than the thorax, feet slender, naked ; wings wide, primaries 

 falcate ; antennae of the males moderately pectinated — of the female 

 scarcely longer. Drepana. 



Fam. XL Saturnidae. 



Antennae setiform, "bipectinate in the male ; no stemmata ; se- 

 condaries wide, fringe short, without a frenulum ; body thick, densely 

 pilose. 



Antennae of males bipectinate, females unidentate. Saturnia. 



Antennae of both sexes strongly pectinate ; wings with vitreous, 



diaphanous spots. Attacus. 



Antennae of the male deeply pectinated to much beyond half the 



length, minutely serrated from thence to the tips — of the female, 



simple. Dryocampa. 



Antennae of the male merely serrated for more than one-third ; of 



the female, simple. Ceratocampa. 



Fam. XII. Bomftycidae. 



Antennae in both sexes pectinated, strongly in the males ; body 

 robust, pilose ; wings strong ; cocoons of the larvae silky, hence called 

 spinners. 



A. Limb of the wings denticulate ; 



a. Antennae very short. 



a. Body thick. Gastropacha. 



B. Limb of the wings not denticulate ; 



a. Antennae of the male equally pectinate, 

 f Primaries with veins not punctate. 

 o Primaries with no pale discal spot ; subacuminate at 



the apex. Clisiocampa. 



— Primaries rounded at the apex. Pimela. 



ff Primaries, veins punctate. Artace. 



Fam. XIII. Notodontidae. 



Body usually robust, pilose, extending beyond the wings ; anten- 

 nae of the male usually pectinate, rarely simple— of the female, 

 simple, rarely pectinate ; wings entire, often long. 



