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INSECTS AFFECTING DOMESTIC ANIMALS 
CATTLE 
HORN FLY ( Haamatobia irritans L-) 
Texas 0« G* Babcock (April 17): The horn fly has been incraasing 
in numbers during the past two -.veeks in -vest Texas. Prospects 
are good for a fairly heavy infestation next month- 
Texas D. C Parman (April 20): Adults at Uvalde increased considerably 
up until the latter p^rt of January and the freezes practically 
killed all of the adults present, but at no time were they 
entirely absent- The increase has been quite noticeable during 
the last two weeks, espscially south in the sandy country. 
Texas F. C. Bishopp (April 23): During the last month there has been 
>a-.. Steady increase in the number of horn flies on cattle* They 
are about normal in number at the present time, the average 
ranging in the neighborhood of 50 per animal in Dallas- 
STABLE FLY ( StoT.oxvs calci trans L.) 
Texas F« C» Bishopp (April 23): The stable fly has increased 
considerably in numbers in Dallas during the last month and is 
now very annoying to all classes of live stock- 
BLACK BLOWFLY ( Phornia retina MeigO 
Texas F. C. Bishopp (April 23): The black blowfly is fully as 
numerous as is normal, and infestations of cattle following 
late dehorning are comron. This species makes up about 80 
per cent of the flies about abattoirs* 
0- G*> Babcock (April 17): Several cases of wool maggots 
starting have been noted, following the wet weather that has 
prevailed for several days* The prospects are good for a 
severe outbreak in ^vest Texas of this pest- Several sheep 
men are shearing now to avoid the trouble* 
GREEN-BOTTLE FLY ( Luc ilia sericata MeigO 
Texas F« C. Bishopp (April 23): This species has been comparatively 
scarce thus far this spring in Dallas- Only a few adults are 
seen about dead animals, and they constitute less than 5 per 
cent of the flies about slaughter houses- 
SCBEF" I7 0BM ( Chrvsomvia maceliaria Fab.) 
Texas Dm C. Parman (April 20) : Adults have been present all winter 
at Uvalde arid cases of worms have been found in most herds 
at all times. Adults were abundant 60 miles south on February 
13- The increase in adults has been very slight to date (April 20) , 
on account of cool, wet weather and ].ate freezes- 
