THE CANADIAN ENTOMOLOGIST. 



flattened at the base. When viewed with a magnifying glass they appear 



Fur - 1 - very beautiful. See figure i, 



>JHBSHP'- , ' vncre a represents the egg 



much enlarged, while at c it is 



; 



c 



f 



i 



shown of natural size and in 

 its usual position on the un- 

 derside of the leaf. On this 

 egg there are about twenty- 

 five raised longitudinal lines, 

 and about the same number 

 of cross lines between each. 



so that the whole appears covered with a regular and beautiful net work, 

 as shown in the figure, which has been drawn from nature, as these also 

 have which are to follow, by our esteemed friend, Prof. C. V. Riley, of 

 St. Louis, Mo. 



In about six or seven days the egg matures, producing a minute 

 caterpillar one tenth of an inch long, with a large black head, and yellow- 

 ish-white body, with a few black hairs on each segment, as shown at c and/, 

 fig. i. This larva grows very rapidly, and soon finds that its skin will 

 bear no further stretching, when it conveniently disrobes itself and 

 appears in garb gay and new by crawling out of its skin through a rent 

 down the back, which takes place just at the proper time, which process 

 is repeated three times during its growth. At b, fig. i, the head and 

 anterior segments of the larva just before its last moult is figured for the 

 purpose of showing how the long fleshy horns with which the mature 

 caterpillar is furnished are conveniently coiled up when buried beneath 

 the old skin. 



The full grown larva, fig. 2, is about one and three quarter inches long. 



Its head is yellowish 

 w i t h a triangular 

 black stripe in front 

 below, and another 

 of a similar shape 

 above. 



The upper surface 

 of the body is beau- 

 tifully ornamented with transverse stripes of black, yellow and white, the 

 white covering the greater part of each segment, and having a wide black 



Fisr. 



