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destructive and that he could notice the daily decrease, in the wei ~ n :t and con- 
dition of cattle due to the annoyance of these flies. It has been dry here 
during the past three weeks and this may have had sone effect upon the increase 
in the number of flies. 
W» G. Bruce (August): Plies have been so generally troublesome, particularly^ 
Stomo xy s calci trans L. , that many cases of lameness in cattle was due to the 
animals being forced to stand in water and mud, reported from many localities. 
The condition was particularly bad in McZenzie and Dickey Counties. (Abstract, 
J.A.H. ) 
South Dakota. W. G. Bruce (August 1): Ranchers state that flies have never been 
so abundant in 30 years. The number of horn flics on cattle per head average 
from 200 to over 1,000; and the number of stable f^fcs per head estimated 
average from 25 to 100. Anthrax and a foot disease, probably foot rot, "nave 
been rather prevalent this season, and it is thought that the abundance of 
stable flics may have 'some bearing on this condition. 
W. G. Bruce (August ): The stable fly is extremely abundant in Columbia, 
Chamberlin, Pierre, Aberdeen, Rcdfield, Miller, and west to the Black Hills. 
(Abstract, J.A.H, ) 
Kansas. K. R. Bryson (August 15): There was an outbreak of biting flics this 
season. These included the horn flies and stable flies. The horn fly was 
particularly abundant. More requests for fly spray formulas have been re- 
ceived than have been sent in for many seasons. 
Missouri. L. Haseman (July 27): Dairymen .and others report fewer horn flies 
than usual. 
HORSE 
NOSE BOTFLY ( Gastroohllus haomorrhoidalis L. ) 
North Dakota. T7. G. Bruce (July): On jiily 7 the first nose botfly was observed 
in the vicinity of Grand Forks; practically every horse in harness is provided 
with a nose guard of some sort, to offer protection against the attacks of the 
nose fly. 
North and South Dakota. W. G. Bruce (August): Hose flics were so abundant early 
in August that practically every .horse botwaen ■ ' South Dakota and 
Winnipeg, Canada, was protected from the no'eofly by some sort of nose protector, 
(Abstract, J.A.H.) 
HQRS3 BOTFLY. ( Gastropilu s intestinal is DcG. ) 
North and South Dakota. 7. G* Bruce (August)-! The common botfly appeared in 
WOrth and South Dakota during the second week in August. They are not un- 
usually abundant. (Abstract, J.A.H.) 
HORSF FLI1S (Tabanidac) . 
North Dakota. . W. G. Bruce (July); Horse f lie's, Chrysops spp. , were especially 
numerous in the vicinity of Grand Forks during the early part c'f July, and it . 
was not uncommon t d sec 8 to 10 of these pests on one horse. 
