Entomological Contributions. 147 



the spines ; spines pale green, with the tips or branches black. Legs 

 fuscous ; prolegs with a red patch exteriorly. 



Fourth molt — Date not noted. Head pale green, black beneath, 

 thence a black line extending upwards, dividing to inclose the eyes; 

 the clypeus marked with black inferiorly and with an abbreviated 

 black line external to it. Body pale green, with a pale yellow sub- 

 dorsal and lateral line, an orange-red stigmatal line bearing the 

 stigmata centrally, bordering which below is a narrow white stripe ; 

 the stripes commence on the third segment. Yentral region ocel- 

 lated, more conspicuously in two rows of brown dots which range 

 with the prolegs. 



Fifth molt — August 10th. The appearance of the larva immedi- 

 ately succeeding this molt was not noted. 



Mature larva. — Its length is two inches, and its diameter four- 

 tenths of an inch. Its head is smooth, round, pale green, with a few 

 short white hairs. The body tapers from the seventh segment 

 moderately toward the head, and more considerably posteriorly: 

 color of the body, white dorsally, pale green ventrally, with a yellow 

 green lateral stripe and a quadrangular patch resting thereon on the 

 posterior half of each "abdominal segment ; beneath this, commencing 

 on the fourth segment, a narrow, sanguineous, stigmatal stripe inclos- 

 ing the stigmata, having upon it some whitish piliferous dots, and bor- 

 dered beneath with a narrow white stripe which it overlaps, except on 

 the crown of each segment : ventrally ranging with the bases of the 

 prolegs and on the anterior half of the segment, two rows of triangu- 

 lar sanguineous spots dotted as the stripes ; the caudal plates are 

 also sanguineous in continuation of the stigmatal stripes, and the 

 prolegs are marked exteriorly with a similar colored spot. The 

 number of spines on the several segments are, i^^, 6^^, Y? V? V • 

 their trunks are green, of a conical form, with cylindrical green 

 branches which are black tipped ; those of the two superior rows are 

 of the same length with the lateral ones, and have their branches 

 contracted suddenly to an acute tip, except on the first segment 

 where the upper branches (black on their superior half or three- 

 fourths) are cylindrical throughout, and have implanted in their sum- 

 mits a bristle nearly or quite as long as the branch : on the second 

 segment, the spines have a few of the bristle-branches, and two or 

 three are also to be seen on the three superior spines of the twelfth 

 segment; the lateral spines have each three or four of these bristle- 

 branches, and the remainder like those of the dorsal rows ; in the 



