THE CANADIAN ENTOMOLOGIST. 143 



shining black ; the spines of 2 wholly black, a little recurved, directed 

 forward, but no longer than other dorsals ; the longest dorsals 14-100 

 inch; feet and pro-legs black ; head small, .14 inch wide, and equally 

 high, subcordate, the front flattened, finely tuberculated, the back much 

 rounded, the vertices sub-conic, and each on its anterior side giving a 

 small black conic process ; the face much covered with black hairs of 

 irregular length ; color of front dull dark brown, of back reddish-yellow. 

 Several larvae were as described, others showed much less yellow on the 

 spines ; the lower laterals always largely yellow, the upper laterals much 

 less so, the dorsals a little yellow at base from 3 to 6, after that less and 

 less, changing gradually to brown, and on n to 13 black. In from 2 to 

 3 days after maturity the larvae suspended, and in about 24 hours pupated. 



CHRYSALIS — Length 1.1 inch ; breadth at wing cases .4, of abdo 

 men .36 inch ; cylindrical, a little compressed laterally ; head case 

 prominent, nearly square at top, the vertices being but very slightly 

 elevated, transversely rounded to the ridge at summit, the sides bevelled ; 

 mesonotum moderately prominent, rounded, carinated ; followed by a 

 deep rounded depression ; the wing cases with prominent conical pro- 

 cesses at base, much elevated above surface of body, the outer edges 

 flaring, the middle part depressed ; on the abdomen two rows of small 

 tubercles corresponding to the dorsal spines of the larva, and which 

 extend to the head case ; one row of minute tubercles on each side ; the 

 whole surface finely corrugated ; color variable, being sometimes glossy 

 dark brown, with a fine mottling of reddish-orange, not distinct, over wing 

 cases and anterior parts ; or dark brown mottled with drab, this last pre- 

 vailing on the wing cases ; or dark brown mottled with lighter brown, most 

 distinctly light at margins of wing cases, where they pass down to surface ; 

 or almost wholly dead-leaf brown, a little obscure on wing cases ; the 

 anterior abdominal tubercles usually black in front, yellow behind, the 

 posterior tubercles wholly black. Duration of this stage 16 to 20 days. 



In Can. Ent., vi., p. 121, 1874, I gave a general account of breeding 

 the larvae of Cybele, Aphrodite and Diana. Since that date I have bred 

 Cybele as well as other species of this group, but before 1880 I always lost 

 the larger part of the larvae during the winter, or they died off at their 

 successive stages, or in chrysalis. I attempted to keep the larvae after 

 hatching, which occurs in September or October, in a cool room free from 



