An Important Elm Insect, 



F. H. HiLLMAN, M. S. 



The present brief bulletin is issued as a preliminary report upon an 

 injurious insect new to Nevada, whose depredations are sufficiently- 

 serious to demaiid early attention in at least a single locality. Our 

 present knowledge of the insect in relation to its history in Nevada, 

 will admit only of an account oi its single known attack within the 

 State, together with a brief statement of the insect's history in this 

 country, its nature and more important life-habits, and the result of 

 ■preliminary experiments leading towards its control or eradication. It 

 is hoped that the investigations of another year will better prepare us 

 for the presentation of reliable information relative to remedies; also 

 further facts regarding the extent of the attack of the pest in Nevada. 



Of the few trees thus far used for shade and ornament in Western 

 Nevada each has some insect enemy, with the possible exceptions for 

 our region at the present time of the maples and box-elder. The 

 majority of these insects, however, have appeared in sufficiendy small 

 numbers to escape popular notice, and so, continue to -appear from 

 year to year unmolested and generally unknown. 



The most popular of our ornamantal trees, the elms, represented by 

 two species, principally the white elm {Ulmus Americana) and the 

 Goi'k elm {Ulmus racemosa), have shared, with others, this immunity 

 from destructive insects, until now these trees are threatened by a 

 most destructive insect of comparatively recent introduction to this 

 country. 



This insect has made its appearance at Carson City upon the elms in 

 the State Capitol grounds and on the streets in the immediate vicinity. 

 So far as is known, this is the only locality within the State in which 

 this insect has made its appearance. 



Early in October of the present year the writer's attention was called 

 to the presence of the insect upon the elms about the Capitol by Mr. C. 



