122 THE CANADIAN ENTOMOLOGIST. 



being subdorsal, two lateral ; on 12 only the two dorsals are present, on 

 13 neither; on the dorsum of 5 at posterior edge is a buff spot just out- 

 side the liiac spot and touching it. Under side deep ochre buff; feet and 

 legs greenish-brown ; head subovoid, bilobed, granulated, with a dull 

 gloss ; color olive-green. 



Gradually the larva changes, the specks disappear on the anterior and 

 also on the last segment, so that the extremities are solid green ; on the 

 middle segments the specks and marks become less distinct ; the ridge at 

 base becomes yellow, the whole under side port wine color ; all the lilac 

 spots change to bluish, the two spots on 5 to brown-buff. 



Finally, before suspension the whole surface becomes dull ochrey- 

 yellow, like P. Troilus at same period, the red of lower side becomes dull 

 and yellowish, or dull salmon, the lilac spots on back change to pale 

 black, but the spots below the basal ridge retain their blue color, but are 

 dull. One day after suspension the larva pupated. 



Chrysalis — Length 1.4 inch ; greatest breadth .38 inch ; the ventral 

 side highly arched, the dorsum much incurved, the former narrow at 

 summit, particularly on the thoracic segments, rounded, the sides sloping ; 

 the dorsum rounded, the sides somewhat flattened to the lateral ridge, 

 which is prominent, carinated, and extends from end to end ; head-case 

 long, flattened transversely and about equally on the two sides, narrowest 

 at base and widening gradually to the tips of the oc-ellar prominences ; 

 these are long, subpyramidal, divergent, the space between excavated 

 roundly ; mesonotum low, the sides very little convex, on the top a very 

 small pyramidal elevation ; surface all finely granulated ; color variable ; 

 one phase shows the whole dorsal side a delicate green, with a darker 

 green medio-dorsal stripe from mesonotum to last segment ; below meso- 

 notum two sub-dorsal low red tubercles, one on either side ; on either side 

 of the abdominal segments two rows of dull lilac points, forming a cross 

 row of four to each segment ; whole ventral side one shade of green, a 

 little darker than dorsum and less yellow ; the lateral ridge cream-color, 

 more or less marked by a red line, which broadens on the process of 

 head ; on the ventral side below the head two red dots near the middle 

 Hne ; a series of white dots along the margins of wing cases ; below the 

 ridge, on last segments, are traces of blue spots. 



Another resembles the above described, except that there is a yellow 

 shade over the dorsal elevation and the medio-dorsal stripe is red. 



