%\t Canadian tt0m0l0gisi 



YoL. I. TOEONTO, JUNE 15, 1869. m. 11. 



ENTOMOLOGICAL NOTES. 



PAPER NO. VI. 



BY W. SAUNBERS, LONDON, Ont. 



Pyrameîs cardui. — Larva found feeding on ttistle, June 15th, full grown. 

 Length 1 J to If inches. 



Head black, reddish in some specimens, above sprinkled with fine whitish 

 hairs, and a few small black tubercles. 



Body above greyish-brown, variegated with yellow and black. Second, 

 third, fourth, fifth, and terminal segments, black, with many whitish dots. 

 A broken dorsal stripe, white anteriorly; yellow from fifth to terminal seg- 

 ments : second segment without spines but covered with fine whitish hairs; 

 third and fourth segments have four spines each; the others have seven, 

 excepting the terminal ones, which have two pairs, one placed behind the other. 

 The spines are much branched and vary in color from yellowish to brownish- 

 white tipped with black ; base of spines along sides of body from fifth to 

 twelfth segments of a reddish-orange color. Body thickly sprinkled with fine 

 whitish hairs arising from minute white or yellow dots ; a pale yellowish 

 broken stripe on each side close to under surface. Spiracles black, ringed 

 with dull yellow. 



Under surface greenish-grey, excepting on second, third, and fourth seg- 

 ments where it is dull black. Fifth, sixth, eleventh, and twelfth segments 

 with tufts of whitish hairs springing from elevated tubercles. Feet dark 

 brown, slightly hairy ; prolegs yellowish grey. 



The larvaa of Cardui vary vei'y much — one young specimen was entirely 

 black, excepting the dorsal and lateral yellow lines; another, full grown, was 

 black throughout marked with yellow dots and transverse lines between the 

 rows of spines — others with very little black, the yellow predominating, but 

 these have some black about the anterior segments. The ridge of tubercles 

 in which the spines are set is bluish-grey in the more yellow-specimens, 

 and the same color intermixed with black in the darker ones. Some of the 

 lighter specimens have the base of nearly all the spines reddish, or reddish- 

 orange ; others have this color only on segments from fifth to terminal ; one 



