CALIFORNIAN LEPIDOPTERA. 105 



seament placed in regular order, but there are no black dots on the apex of 

 the tubercles as seen in the allied species. Length ^^ inch. 



CLISIOCAMPA. 



C. thoracica Stretch. Larva. — Body obscure brown, dorsal ridge orna- 

 mented with a row of conspicuous ochre-colored spots, two spots on 

 each segment, the one placed in front always much the larger; the spots are 

 attended by numerous short waving lines of reddish-brown, running longi- 

 tudinally, and there is a sub-dorsal line of the same color, and a spiracular 

 Hue of a much lighter shade. Its whole length above the feet is occupied 

 with numerous tufts of grayish hair. 



The dorsal line of spots is its most particular feature, as it conti'asts with 

 the sombre tone of the body color. Length If^ to 2 inches. 



Natural food plant the native willow, upon which it is 

 found feeding at Berkeley, but it has taken to the foliage of 

 different kinds of orchard trees, upon which great damage 

 has been done. 



