FIFTEENTH ANNUAL EEPORT OF STATE ENTOMOLOGIST !!•!» 



Horse Flies {Tabanidae). In the mountainous localities, horse- 

 fiies were abundant most of the summer, causing" considerable incon- 

 venience to campers and people whose business required their pres- 

 ence in the mountains. 



Currant Fruit Fly {Epochra canadensis Leow.). Very few cur- 

 rants were gathered in parts of Montana this year due to the injuries 

 caused by this insect. Some poison bait sprays have been used with 

 some success. 



Wheat Sheath Miner {Cei-odontha f em oralis Meig.). The losses 

 caused by this insect were not as great as previously. Control 

 measures carried on in one locality seemed to have greatly decreased 

 them. 



Stem Maggot of Wheat {Meromyza ni^iiventvis Alacq.). This 

 insect, in localities where the control of Cerodontha f em oralis was 

 carried out, was effectively controlled at the same time. The damage 

 done in other places was difficult to estimate due to the losses through 

 drought. 



The Nose Fly (Gastrophilas liaem orrlioi dalis Linn.). The nose 

 fly has gradually spread over the entire State and causes more and 

 more trouble in the using of horses. A solid piece of leather from 

 Int ring to bit ring just wide enough to protect the lips is the best 

 protection. 



Onion Maggot (Phorhia cepariim Meade). The onion maggot 

 was a serious pest of both onions and radishes this year, wherever 

 they were grow^i. 



The Cabbage Maggot {Phorhia hrassicae Boche). Caljbages 

 growai in the northwestern portion of the State Avere severely injured 

 by this maggot. Other parts of the State were almost free from 

 any loss of this kind. 



THE FLEAS (SIPHONAPTERA) 



Fleas (Siphonaptera). Inquiries for flea control measures were 

 leceived this year. The human flea, Pnlex irrifans, was the most 

 common offender. This also lives on mice, which were in some 

 cases the original source of infection. 



THE BEETLES (COLEOPTERA) 



The Larder Beetle [Derinestis lardariiis Linn.). IMic usual 

 inquiries regarding this pest of food products were receixcd in this 



