ORDER LEPIDOPTERA 



155 



caterpillars gnaw off the stems of succulent plants. The larvae of 

 the species of Apatela are hairy, and so closely resemble certain 

 Notodontian caterpillars as to be easily mistaken for them. 



Family Eombycidae. The species of this family differ in the usually 

 thick, hairy body, small head, pectinated antennas, and long, large 

 clypeus; in the weak palpi and often small, weak tongue; while the 

 caterpillars are usually hairy, and more or less tufted, or spiny. 

 They spin a cocoon, more or less dense, and the chrysalids are un- 

 usually short and thick. The group is divided into a number of 

 sub-families, regarded by some authors as families. 



The LacJineides (Lasiocampinse) embrace the genera Clisiocampa, 

 Gastropacha, etc. The larva of Clisiocampa americana Harris is 

 called the American tent-caterpillar; its webs are seen in apple and 

 cherry trees. 



The Ceratocampinm are represented by Anisota sanatoria (Abbot- 

 Smith), whose spiny black-and-red-striped larva? strip oaks; also by 

 two very large moths, Citheronia regalis (Fabr.) and Eacles imperial-is 

 (Drury); the Hemileucini by Hemileuca maia and Hyperchiria io Fabr. ; 

 while the giants of the family belong to the Attaci, which embrace the 

 American silk-worm, the caterpillar of Teleapolyphemus (Cramer); Ac* 



FIG. 191. The Chinese silk-worm, b, cocoon; o, moth. Natural size. 



tiaslun(i(Liur\.\ Plntymmm cecropia Linn., and Callosamin, prometJiea 

 (Drury). The Eoml>ycin<v are represented by the Chinese silk-worm, 

 Bombyx wion'Linn , and this group is succeeded by PUttyptf rices, of 

 which Platypteryx arcuata Walk, is a type. This group is succeeded 

 by theNotodontians (Ptilodontes), of which Schizura um'cornis (Abbot 



