small proportion of them were living; they douhtless passed the winter in the 

 perfect state, and as the vines were exposed to unusually severe weather on the 

 trellises, many of the insects died; the dead specimens were passihly fit for 

 preserving, had it been desirable. I saw two male specimens, one dead, the 

 other living. The finding of the Amphicerus bicaudatus Say, under these cir- 

 cumstances, associated with A. aspericollis Germ., confirms the opinion of Dr. 

 LeConte, that the two are sexes of one species. Upon a subsequent occasion, I 

 found two A. bicaudatus just in the act of boring into grape vines immediately 

 above the buds : they had entered about once and a half their length in limbs 

 frost-killed during the last winter. These observations remind me that Dr. 

 John Hostetter, of Mount Carrol), about five years ago, informed me that he 

 had found a grape vine borer in its different stages. I find in the vines three 

 species of Coleopterous larv^ ; one rather rare, footless, yellowish-white, with 

 black horny mandibles, length .30 inch; from these, after eighteen days in pu- 

 jiarium, I bred Callidium amoenum Say. Another is a thick wrinkly grub, with 

 a hoary-brownish line an the upper part of the abdomem ; thorax extremely 

 heavy, body curved so that the extremities come together, legs quite hairy. I 

 placed about a dozen specimens into a box: they refused to eat. I never saw 

 them crawling, they were always curled up, and when handled, tumbled about 

 like balls, the feet were constantly in motion. These all died in the course of 

 two or three weeks without becoming pupae; their greatest length is .30 inch. 

 Still later, I obtained two much larger grubs; these are yet in the larval state 

 in the vine; I can only conjecture that they may be the larvae of Amphicerus 

 bicaudatus. A third larva, a grub somewhat similar to that noticed above, but 

 smaller and more slender, is very abundant; it is white, without the dark spot 

 on the abdomen, and curls up as the other when removed from the wood. 



May loth. — Many of these larvae have become pu]!*, and on the 10th of June 

 most of them were in the perfect state, and only one larva was seen. These 

 developed into Lyctus opaculus, Lee, and on the 1st of July I took the last ima- 

 go out of the grape wood. These were so numerous in many vines as to eat up 

 the wood entirely, the bark alone sustaining the vine. I am convinced that 

 they only feed on wood recently doaii, more especially because they are so 

 often huddled together so closely ; it is quite apparent that they do not inter- 

 fere with living sappy wood. I am inclined to believe the same regarding all 

 these three species of grape vine borers. If this is a correct conclusion, they 

 will not damage the vines. 



Associated with these borers, I found at least three distinct parasites ; two 

 identical with the undetermined Ichneumonide mentioned in my Notes on the 

 Prickly Ash insects; and a third a naked, black, footless pupa found in 

 early spring in the borings of the coleopterous larvae, which probably passed 

 the winter in the stems; these developed an undetermined species of Chalcid- 

 idse, which presents the following characters; — Head, thorax and anterior part 

 of abdomen greenish, with purple, golden and metallic reflections; posterior 

 part of abdomen steel-blue ; legs and first joint of antennae reddish ; remainder 

 of antennae black ; wings with two smoky transverse bands ; the antennae equal 

 one-fourth the anterior wing in length; length of body one-fourth of an inch. 



Several other insects were observed in connection with these, observations, 

 , but of which I did not learn sufficient to notice at present. 



MouxT Carroll, Ills.,, July 1, 1868. 



