LEPIDOPTERA. 257 



many years ago by Drury, who named it Egle. Though marked 

 and colored like some of the Arctias (for example, the luctiftra of 

 Europe), it cannot with propriety be included in the same genus, 

 and therefore I have proposed to call it Euchcetes Egle ; the first 

 name, signifying fine-haired, or having a flowing mane, is given to 

 it on account of the long tufts of hairs overhanging the forepart of 

 the caterpillar like a mane. This moth, in some of its characters, 

 approaches to the Lithosians, but seems, in others, too near to 

 the Arctians to be removed from the latter tribe, and it is evi- 

 dently, in the caterpillar state, nearly allied to the following 

 insects, which are undoubtedly Arctians, but lead apparently to 

 the Liparians. If our Arctians are grouped in a circle, with the 

 larger kinds, such as the great American tiger and leopard moths 

 in the middle, and the others arranged around them, then will 

 these species, which are here described last, be brought round to 

 the Callimorphas with which the series began, and thus a natural 

 order of succession will be preserved. 



During the months of August and September, there may be 

 seen on the hickory, and frequently also on the elm and ash, 

 troops of caterpillars, covered with short spreading tufts of white 

 hairs, with a row of eight black tufts on the back, and two, long, 

 slender, black pencils on the fourth and on the tenth ring. The 

 tufts along the top of the back converge on each side, so as to 

 form a kind of ridge or crest ; and the warts, from which these 

 tufts proceed, are oblong oval and transverse, while the other 

 warts on the body are round. The hairs on the forepart of the 

 body are much longer than the rest, and hang over the head ; the 

 others are short, as if sheared off, and spreading. The head, 

 feet, and belly, are black ; the upper side of the body is white, 

 sprinkled with black dots, and with black transverse lines between 

 the rings. These neat and pretty caterpillars, when young, feed 

 in company on the leaves ; while not engaged in eating, they bend 

 down the head and bring over it the long hairs on the forepart of 

 the body ; and, if disturbed or handled, they readily roll up like 

 the other Arctians. When fully grown, they are nearly one inch 

 and a half long. They leave the trees in the latter part of Sep- 

 tember, secrete themselves under stones, and in the chinks of 

 walls, and make their cocoons, which are oval, thin, and hairy, like 

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