64 THE CANADIAN ENTOMOLOGIST. 



dorsal tubercles, from 5 to 12, is a small and paler yellow oval spot; so 

 that in all there are four longitudinal rows of these spots, the outer pair 

 large, the inner small ; legs black, pro-legs greenish-brown ; head shaped 

 as before, black, rough, with many scattered short hairs. Duration of this 

 stage 15 days, in the only example which reached 2nd moult. 



After Second Moult. — Length at 24 hours, .24 inch; in all respects as 

 at second stage, except that the spots which were then yellow are now 

 white. Before the third was completed the larva died. 



The inflated skin of Parnassius Apollo spoken of above will 

 serve to show what the mature larva of Sinmthejis would be like. The 

 Apollo is black, covered thickly with short stiff black hairs. Where in the 

 larva of Smintheiis at ist moult, is a row of yellow spots, m Apollo there 

 is a row of large red ones, extending from 2 to 11, with smaller ones on 

 12 and 13. Instead of a dorsal row of smaller spots as in Stnintheus. in 

 Apollo the small spots are in line with the large ones, one on the front of 

 each segment, and between 2 and 3, 3 and 4, is a small spot in addition. 

 It is possible that the spots of Smmthcics may again change color (having 

 once changed from yellow to white, at 2nd moult) but I apprehend the 

 white spots will remain till maturity. 



The larva of Parnassius at every stage is unlike that of a Papilio, the 

 only resemblance being in the presence in both of the scent organs, and 

 the young larva seems to me more like that of certain Erycinidae, for 

 example, Lemonias Nais, as figured in But. N. A., V. 2. The egg is like 

 Lemonias and Lycaena, and as is well known, the. chrysalis is like that of 

 a Hesperid, or some of the Heterocera, and very unlike the typical 

 Papilionidae. The more I see of the Parnassians, the more satisfied am I 

 that their place is not with the Papilionidae, but at the other end of the 

 series, and near the Erycinidae, where they should rank as a Family. I 

 believe that the egg, larva in its stages, and the chrysalis is a better guide 

 to the relationship of butterflies than the characters of the imago. 



P. CLODIUS, Men. 



Egg. — Nearly plano-convex, the top being arched, the base flat, the 

 edge about base rounded ; at the summit a depression about the micro- 

 pyle ; when magnified to one inch diameter, the shape is very like that of 

 a wooden button ; color diluted coffee-brown ; the upper surface covered 

 by a crust, which is pitted with little round cells. (This egg much 



