LEPIDOPTERA. 281 



caterpillar has been copied in the illustrations accompanying 

 Cuvier's last edition of the " Regne Animal," and is there 

 referred to Latreille's genus Scricaria. This includes, besides 

 various other insects having no resemblance to the foregoing, 

 the true tussock caterpillars belonging to the next group ; but 

 from these the caterpillars of all the kinds of Lophocampa differ 

 essentially in being much more hairy, in not having the warts 

 on the sides of the first ring longer than the rest, and in being 

 destitute of the little retractile vesicles on the top of the ninth 

 and tenth rings ; moreover their chryealids are not covered 

 with short hairs in clusters or ridges. On the other hand they 

 agree with the Arctians in being covered with warts and 

 spreading bunches of hairs, in rolling up like a ball when 

 handled, and in the form and structure of their cocoons. The 

 position of the wings of the checkered tussock-moth, when at 

 rest, is almost exactly like that of some of the Lithosians; but 

 the other kinds of Lophocampa do not cross the inner edges 

 of the wings; and the bodies of all of them are mu.ch thicker 

 and more robust than those of the Lithosians. 



The third group or family of Bombyces may be called Li- 

 parians (Liparid.e*). Of the moths bearing this name, the 

 females have remarkably thick bodies, and are sometimes des- 

 titute of wnngs, while the males are generally slender, and 

 have rather broad wings. Their feelers are very hairy, and for 

 the most part are rather longer than those of the Arctians. 

 Their tongues are very short, and invisible or concealed. 

 Their antennae are short, and bent like a bow, and donbly 

 feathered on the under side, the feathering of those of the 

 males being very wide, and of the females mostly narrow. 

 When at rest, these moths stretch out their hairy fore legs 

 before their bodies, and keep their upper and lower wings 

 together over their backs, sloping a very little at the sides, 

 and covering the abdomen like a low or flattened roof. The 

 females, even of those kinds that are provided with wings, are 



* From Liparis, more properly Liparus, the name of a genus of moths, belong- 

 ing to this group. This name means fat or gross, and was probably assigned to 

 the genus on account of the thickness of the bodies of some of tlicse moths. 



36 



