tz THIRD ANNUAL REPORT OP 



black, with bristle-bearing warts of same color. Stigmataoblong-oval and pale. Thoracic legs Black," 

 prolegs with black extremities. Such is the normal appearance. of this larva, but it is very varia- 

 ble. In some the yellow seems to predominate over the black, and there is a more or less distinct 

 dorsal line. In some this dorsal line forms a mere speck at the incisures of the middle joints. 

 The transverse crimson band is often entirely obsolete, and the warts distinctly separated, while 

 in others where this band is distinct, the warts Frequently coalesce. 



Pupa— Almost black, and shagreened with the exception of a smooth and polished rim, at pos- 

 terior border of. joints, which becomes reddish, especially ventrally, on the three joints immediately 

 below wini;- -heaths. Terminal joint horizontally compressed, squarely cut off, and furnished with 

 a little brush of short evenly-shorn, stiff rufous bristles. 



THE PYRAMIDAL GRAPE-VINE WORM.— AmpMpyra pyrami- 



doides, Guen. 



(Lepidoptera, Arophipyridas.) 



Another worm, never hitherto mentioned as injurious to the 

 Grape-vine, is often found resting upon it in the posture shown in 

 f F '£- 31 d Figure 32, and may be at once distin- 



guished from all others that are known 

 to attack it, by having a pyramidal 

 hump near the end of its body. This 

 worm I have also found upon the Red 

 Bud (Cere is canadensis), the Rasp- 

 berry and the Poplar, but it is only as a 

 ™ vine-teeder that it can be considered 



injurious. It was more abundant in the summer of 18139 than it has 

 been since. According to the experience of Mr. G. Pauls, of Eureka, 

 it takes the Hartford, Israella and Iona first, and the Concord and 

 North Carolina next, and devours the blossoms as well as the 

 leaves. It is of the form shown in the iigure and of a delicate green 

 color, marked with pale yellow or cream-colored lines and spots, as 

 there indicated. It is found on the vines during the month of May 

 with us, and during the forepart of June descends to the surface of the 

 ground, where it spins a loose cocoon of whitish silk, generally con- 

 structed between some fallen leaves. Within this cocoon it remains 

 some time in the larva state, but eventually becomes a shiny mahog- 

 ony-brown chrysalis from which emerges a moth (Fig. 31), with the 

 front wings bark brown and x [ p '£- 32 -3 



glossy and marked with dark 



brown and pale grayish-brown __ -• - 



as in Ihe cut; and with the hind* 2 A - "■■ 



wings of a lustrous copper color, 



from which character it may be called in popular language the Amer- 

 ican Copper Underwing. In Chicago, Illinois, this insect is single- 



