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THROA.T BOTFLY ( O^-stromhilus nasalis L. ) 
Ohio F. C. Bishopp (August 37): All horses are veil infested ith 
e.vrs of the threat bot fly at Columbus. The e.rrs of this species 
seem to be equally as abundant as those of Gastrophilus intcstin- 
alis . Much annoyance to horee is reported from the attack of 
this fly. 
HORSE EOT FLY ( &> strophulus ' intestinal is DeG-. ) 
Ohio F. C. Bishopp (August 27): The ndults of this species have- in- 
creased in numbers during August at Columbus and practically all 
horses are now well infested with eggs. The flies are reported 
as bothering horses considerably in the harvest fields. 
Illinois '.7. P. Flint (September 19': Adults of this insect have been very 
abundant during the last month. In one c^se an adult was observed 
to deposit six eggs on the hairs of the am of a man working in 
the field. -";'.'■ 
.CATTLF, 
STABLE FLY ( Stomoxys cal citrons L. ) 
Ohio J. C. Bishopp (August 27): Stable flies fell off slightly in 
numbers during August at Columbus but "ere still very annoying 
to stock at the end of the month. Some herds show an average 
of 100 per animal feeding at one time. 
Michigan R. K. Fettit (August 28): . Unusual numbers of stable flies are 
present in the vicinity of Grayling, where they male themselves 
conspicuous during the annual military c^mp held at that place. 
Texas 0. G-. Babcock (September 3): Flies are beginning to appear in 
snail numbers. 
HORN FLY ( Eaeratcbia irritons L. ) 
Ohio- F. 0. Bishopp (August 27): . The horn fly has continued to serious 
ly annoy all classes of cattle throughout August at Columbus, al- 
though there has been soma reduction in numbers during the latter 
h~lf of the month. Some dairy herds show an average of about 
1,500 per head on this date. Most dairymen arc using sprays. 
SCBmTJ 70E.I CCachlioryir. maccllarir. Fab. ) 
3hio F. C. Bishopp (August 27): Screw worm flies have increased some 
in this locality (Columbus) during August. At rendering plants 
