ENTOMOLOGY. 767 



is thought that native insects may soon learn to attack them. The 

 insects mentioned are classified according to the part of the tree 

 affected. In some cases very complete accounts of the life history and 

 habits of the insects are given, together with the principal, more or less 

 well-known, remedial measures. 



The peach tree borer (Sanninoidea exitiosa) promises to be one of the 

 worst insect enemies of the prune in the State. It was introduced into 

 the State nearly 20 years ago and is spreading rapidly. The Pacific 

 peach tree borer (N. opaleseens) is thought to be present in the State and 

 to take the place of 8. exitiosain southern Oregon. The flat headed-apple 

 tree borer (Ghrysobothris femorata), the cicada (Platypedia putnamij, 

 the branch and twig borer (Polycaon confertus), the San Jose scale 

 [Aspidiotus perniciosus), the bud moth (Tmetocera ocellana), the clover 

 mite (Bryobiapratensis), the red spider ( Tetranychus sp.), the prune leaf 

 weevil (Trieolepis inornata), plant lice [Aphis prunifoliw and Phorodon 

 luniudi), the peach twig moth (Anarsia Uneatella), and the box elder 

 plant bug (Leptocoris trivittatus), are the other prune pests mentioned. 



The bud moth appears to be recorded for the first time in Oregon. 

 where it has been found at Portland affecting the cherry. Although it 

 has not been found affecting prunes, it is included in the list on account 

 of its well-known fruit habits in the East. The remedy suggested for 

 it is under-spraying the leaves with Paris green between June 1 and 10. 



The peach twig moth has been found affecting both peach trees and 

 prunes. The insect was studied somewhat in detail. It was noted that 

 notwithstanding a rather extensive attack of the insect in June no 

 evidence was found during the summer, fall, and early winter months 

 of an attack on the prune by a second brood. From this and the fact 

 that in early fall strawberry plants were very badly attacked by an 

 apparently identical larva* the author infers that the .Inly brood of 

 moths deposits its eggs almost entirely upon the strawberry. A speci- 

 men of the moths raised from larvae taken from the strawberry was 

 identified by C. H. Fernald as A narsia Uneatella. The appearance of 

 the moths from larva- affecting the prune and those from larva* affect- 

 the strawberry is almost the same, save that the former are somewhat 

 larger and darker in color. The habits of the moths and the coloration 

 of the larval' are, however, very different and therefore the author thinks 

 that 2 distinct insects have been confused under the name Anarsia 

 Uneatella or that dimorphism occurs. Which is the true A. Uneatella 

 is a question left undetermined, but it is suggested that one of the 

 species may possibly be A. pruinella, which has been discarded as a 

 synonym of A. Uneatella. The moths reared from strawberry crowns 

 crawl down the vines into the crevices in the soil and when disturbed 

 run or flutter about with wings half spread, while moths from larvae 

 aflecting the prune take au elevated position in the breeding cage with 

 the fore part of the body somewhat raised and the labial palpi held 

 rigidly upward. When disturbed they dart rapidly away and alight 

 again in the same peculiar attitude. 



