1893.] 1»" [Packard. 



deep black. Also by the numerous close, broken, fine, dorsal, alternating 

 black and ochreous lines. 



Two specimens of the same larva were collected by myself in the middle 

 of June at Virginia City, Montana. It has the same markings, but the blue 

 patches on the side are not so distinct, as they merge into the blue of the 

 side of the body. On this account the black spots between the two blue 

 patches is more distinct. In one example, however, the lateral blue spots 

 are present. The markings on the head and the irregular ochreous-red 

 lines on the anterior part of the body are just the same in the Montana 

 example. 



Partial Life History of CLisiocAiiPA disstria Hiibner (sylvatica 



Harris). 



Of this caterpillar about a dozen described below were found on an 

 oak leaf at Providence, May 24. 



Stage IIl(J). — Length, 10 mm. Head not so wide as the body, black. 

 The shape of the body is as in G. americana of the same age. The 

 lateral prothoracic and other thoracic piliferous warts as in C. americana, 

 but the markings are already very distinct. The prothoracic shield much 

 as in the other species. There are four large, conspicuous, lateral, black, 

 raised spots, two on the second and two on the third thoracic segment. 

 The body is blue above, with two contiguous, parallel, broken, black lines, 

 each dorsal bordered externally by a broken, deep, straw-yellow line, 

 which widens on the sutures. IViese black lines are wide, and in most of the 

 specimens so encroach on the blue band, on abdominal segments 1-7, as to break 

 it up into a median row of more or less pear shaped blue spots, which are 

 diagnostic of the species ; thus the specific characters appear in this stage. 

 Two lateral, linear, white lines enclosing a broad, blue stripe, the latter 

 edged with a fine, broken black line. Abdominal segments 8 and 9 

 dull, livid blue. The body beneath is pale, livid, whitish. The thoracic 

 legs are black ; the abdominal legs with a black spot on the outside near 

 the end. 



The body is not quite so densely hairy as in C. americana, but the 

 hairs are ot about the same color, being p.ile brown above and whitish 

 on the sides of the body and beneath. 



In these examples the row of dorsal spots are seen to originate from the 

 breaking up of the median blue band, owing to the encroachment of the 

 black border. 



Life History op Clisiocampa californica (Pack.). 



I owe to the kindness of Mr. Cockerell a mass of eggs received from 

 West Clifi", Ouster county, Colo , and which hatched at Providence, April 

 14-15. 



Larva, Stage I. — Length, 3 mm. Head and body of nearly the same 

 proportions as in (7. americana, but decidedly thicker and stouter, though 



