80 MONTANA EXPERIMENT STATION-. 



ENTOMOLOGICAL DEPARTMENT. 



R. A. CooivEY, Entomologist. 



The experiences of the year have shown the great need of ento- 

 mological research in Montana. A large amount of damage is 

 being done by native insects, and very little light, comparatively, 

 has been thrown on their habits and the ways to combat them, 

 many species never having received more than passing mention in 

 entomological literature. These, as well as many introduced 

 species, well known elsewhere, for their destructiveness, demand 

 attention in order that their habits may be worked out and reme- 

 dies or preventive measures devised. 



Montana is enjoying with the rest of the country a season of 

 almost boundless prosperity, parallel with which is a great mer- 

 cantile activity. Many heavily loaded trains bearing agricultural 

 products and merchandise cross our borders from the outside each 

 day. The invariable experience of the past has been that such 

 mercantile practices are responsible to a great extent for the spread 

 of injurious insects from one country or section to another. We do 

 not hesitate to say that many insects are being deposited in the 

 state from other places each year. 



The following list gives the names of species that have been 

 detected in the state and which are believed not to be native of 

 Montana: 



