330 AMKEICAlf POMOLOGY. 



Then come, in Dr. Harris' classification, the Zeuzerians, 

 a group of moths which, like ^gerians among the Sphin- 

 ges, pierce the roots and stems of trees. Among these is 

 ^yleutes {Cossus) robinioB, or the Locust-tree Boring- 

 moth. 



The Saturnians are a group of large, naked caterpillars, 

 which are generally short, thick, clumsy, and cylindrical ; 

 they are leaf-eaters, and some of them, when young, keep 

 together in families, but separate as they become older, 

 when they spin large silky cocoons sometimes among 

 leaves, which they secure by silk to the twigs, sometimes 

 attaching them to the stems and limbs, and at others at, or 

 beneath, the surface of the ground. This group contains 

 some of the largest and most beautiful moths, with large 

 woolly bodies, and widely extended, highly colored and 

 ornamented wings. They lay a great many eggs ; some 

 females deposit several hundreds. Still they are seldom 

 so numerous as to commit serious devastations. 



" Among these are the Telea Polyphemus, TropoB'oluna, 

 CaUoaamia Promethea, Platysamia cecropia, (formerly 

 known under the genus AUacus, which is now restricted 

 to 'the immense A. Atlas, and another species of China), 

 and Xh^' Michronia Maia, and Hyperchiria varia, (for- 

 merly known under the genus Sainirnia, which is now re- 

 tained for several European species). The latter species, 

 (2r. varid), has been generally known among us under the 

 name of Satumia To, but,according to Dr. Packard, (who 

 published ' a Synopsis of the Bombycidse of the United 

 States,' in the Third Volume of the Proceedings of the 

 Entomological Society of Philadelphia), our species has 

 been confounded by authors with Cramer's species ' Jo,' 



