June '[f)th. — I found only a few pupae in their holes in the wood ; but a few 

 dnys later I took a number of specimens of the perfect insect by beating the 

 Prickly Ash bushes. Examinations of old bushes show the work of former 

 vears. From these observations I conclude that they breed in wood recently 

 dead, never in living wood, nor yet in wood dead for several years. In many 

 of the holes in the body of the trees, I find a small, white silky cocoon, and 

 where this is I never find the pupae of the Liopus. From these, June 20th — 

 25th, I bred an undetermined species of Ichneumonidae. I also find a white 

 maggot preying on some recently dead larvae. One of these maggots, not yet 

 half erown, appears to have just killed its victim, which is still quite plump, 

 the posterior part a little shrivelled from the sucking of the maggot; these 

 parasites were probably deposited this spring. They soon became pupae, with 

 the naked white legs free. From these — June 15th — I obtained a beautiful 

 little Ichneumonide — also undetermined. I find many small beetles {Lcumoph- 

 Iceus adustus Lee., and Sacium fasciahim Say) crawling about slowly on the 

 bark of the Prickly Ash bushes. 



May 2'ird. — Saw several of the Sacium fasciatum in the holes of the borers. 

 Observing a small round hole, like a pin hole, in a dead Prickly Ash bush. 

 I cut out two specimens of a Scolytide, which Dr. LeConte informs me he has 

 recently named Micracis suturalis.'^ Upon several occasions, up to the present 

 time, I have beaten Prickly Ash bushes in different localities in the groves 

 within two miles of Mount Carroll, but never found either Micracis saturaliH, 

 Liopus xantho.ryli, Lcemophlceus adustus or Sacium fasciatum, except in the one 

 locality on the creek a mile west of the town; no dead trees were, however, ob- 

 served in the other localities. The Ending oi Sacium fasciatam frequently in 

 the borer holes, might lead us to conclude that they feed on the excrements or 

 exuvia of other species. Among the Coleoptera obtained by beating the 

 Prickly Ash bushes, I observe numerous specimens of a small, grey snout- 

 ]3eetle — an undescribed species of Cenirinus. I find the trees in fruit, and have 

 collected them from no other trees. 



Since making the above observations on Micracis suturalis, I have succeeded 

 in obtaining a small number by cutting in the dead wood, where the bark was 

 adherent and where the Liopus larvje had not worked. They are only found 

 in imago now, and in this state appear to have entered ; their holes are en- 

 tirely free from chips, and I usually found them with their heads inward; their 

 holes frequently intersect, and wind in various directions; sometimes they 

 have several external openings, and when approached they usually go deeper 

 in, if possible. I never took one by beating on the bushes. I saw one on the 

 trunk of a Prickly Ash, but it escaped by falling to the ground. 



June \^th. — I obtained from beneath the bark, a small species of Chalcididre ; 

 also a larva of a species of Scymmus from the holes of the borers. 



I am indebted to Dr. LeConte for determining the Coleoptera above 

 noticed. 



Mou.NT Carroll, Illinois, July 1, 1868. 



A brief Extract from Notes on Grape Vine Borers. 



April 2bfh, 1868. — When examining dead wood of Isabella and Clinton Grape 

 vines, I find many of the vines literally riddled by some kind of borer; and in 

 these galleries I observe many specimens of Amphicerus bicaudatus. Say. A 



Trans. Am. Ent. Soc. ii, 165. 



