364 LEPIDOPTERA. 



pencils, of the same color, directed backwards, on the elev- 

 enth ring. The body is yellowish white, with dusky warts, 

 and the head is brownish yellow. These caterpillars leave 

 the trees towards the end of August, and conceal themselves 

 in crevices of fences, and under stones, and make their 

 cocoons, which resemble those of the hickory tussock ; and 

 from the middle of June to the end of July the moths come 

 forth. These moths are faintly tinged with ochre-yellow ; 

 their long, narrow, delicate, and semi-transparent wings lie 

 almost flatly on the top of the back ; the upper pair are 

 checkered with dusky spots, arranged so as to form five 

 irregular transverse bands ; the hind edge of the collar, and 

 the inner edges of the shoulder-covers, are greenish blue, and 

 between the latter are two short and narrow deep yellow 

 stripes ; the upper side of the abdomen and of the legs are 

 deep ochre-yellow. The wings expand about two inches. 

 The name of this beautiful and delicate moth is Lophocampa 

 tessettaris, the checkered tussock-moth. It is figured and 

 described in Smith and Abbot's " Insects of Georgia," where, 

 however, the caterpillar is not correctly represented. Mr. 

 Abbot's figure of the caterpillar has been copied in the illus- 

 trations accompanying Cuvier's last edition of the " Regne 

 Animal," and is there referred to Latreille's genus Sericaria. 

 This includes, besides various other insects having no re- 



* O 



semblance to the foregoing, the true tussock caterpillars be- 

 longing 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 chrysalids 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, 



