THE CANADIAN ENTOMOLOGIST. 347 



similar. They grow very slowly, as the eggs hatch in late August and the 

 larvje do not attain maturity until the latter part of April and early May. 



Mature Z^/t'^j;.— Onisciform, attenuated at the extremities, with the 

 posterior end well rounded; thickly pilose, hairs somewhat clavate ; colour 

 light whitish-green, but slightly darker than the under side of the leaves of 

 the food-plant. Segments sharp ; head minute, pale, retractile within the 

 first segment. Dorsal surface convex, with a wide but faint dorsal band 

 in which is contained a narrower darker line ; ventral surface flat, hiding 

 legs and prolegs, somewhat lighter than above ; a creamJsh-white lateral 

 stripe just above the spiracles. Length about i8 mm.; width about 8 mm. 

 Pupation takes place on the under side of the lower leaves and in the 

 leaves and rubbish on the ground. The pupa is suspended by the anal 

 extremity and with a median loop. Two of my larvae pupated freely 

 among the leaves in their boxes. 



Pupa. — Short, stout, of the same general colour as the larva, slightly 

 ashen posteriorly ; abdomen with numerous rather faint black points, 

 arranged in longitudinal series. Length, lo mm.; width, 5 mm. I had 

 but three pupae, and as these emerged during my absence, my description 

 is drawn from a few rough notes. The imagoes vary considerably in 

 colour, the females particularly. One specimen which emerged from a 

 pupa, the larva of which was obliged to pupate prematurely on account of 

 lack of food, expanded but a little over one inch. The average expansion 

 is from i. 25-1.30 inch. I have also in my collection a striking ^ aber- 

 ration, in which the spots of the under surface are greatly produced into 

 long black dashes, somewhat after the fashion of the inferior surface of the 

 secondaries of LyccBua sagittigera ; above it is quite normal. 



The Larva and Pupa of Lyccena piasus, Boisd. 

 As far as I am aware nothing is known of the life-history of pt'asus, 

 except that Lembert (Entom. News, VI, 138, 1895) writes of its ovi- 

 position, "on the racemes of the Lupimis de?isiflora, and on the bracts 

 oi L. chamiso7iis dAxtx they have fruited." He also writes, '-Lyccefta vdiV. 

 on the inner side of the unopened buds of the thrysus of the yEsculus 

 Californicus (Buckeye)." The latter is also probably //d;j2/5, as I have 

 several times this season found the larva on ^sculus blossoms. On the 

 first of June, while on a collecting trip, I found several full-grown larvie, 

 which 1 collected, intending to get a description of them. Both had 

 pupated, however, before I returned home. The larva, as I remember it, 



