INSECTS INFESTING DOMESTIC ANIMALS 
HORN FLY ( Haernatobia irri+.ens L.) 
Texas F. C. Bishopp (October 28). "Horn flies have not given the usual 
amount of trouble to dairy and range stock this fall owing to continued 
dry weather. The average number of flies per animal on dairy herds 
in the vicinity of Dallas ranges from 10 to 300." 
HORSE BOT-FLY ( Gastromhilus intestinal is DeG . ) 
Texas F. C. Bishopp (October 28). "This fly has increased in numbers 
materially during September and is still depositing eggs in great 
numbers at this date." 
Maryland J. A. Hyslop. "This insect has been more troublesome this year than 
during the past three years in southeastern Montgomery County. Clip- 
ping of the eggs from horses was necessary up to the middle of October.'" 
NOSE BOT-FLY (Ga stroohilus nasal is L . ) 
Texas F. C. Bishopp (October 28). "The nose botCfly began to appear in the 1 
vicinity of Dallas in August and became very numerous toward the latter 
part of September. They are still annoying horses to some extent on 
this date." 
SCREWORM ( Chrvsomva mac e liar i a Fab.) 
Texas F. C. Bishopp (October 28). "Mr. D. C. Parman reports comparatively 
few cases of the screwworm in live stock in Uvalde and adjacent counties. 
There were more cases in September and early October following shearing 
of sheep and goats in the hilly country north of Uvalde than with many 
other classes of live stock on the ranges to the south. Mr* 0. G. 
Babcock reports very few cases of the screwworm in Sutton and adjoining 
ccounties this fall. This is due to drought, the flies being practically 
killed out during the summer months. Screwworm flies are comparatively 
scarce in the vicinity of Dallas, and cases of screwworm injury very 
few." 
BR0\7N DOG TICK ( Rhipiceohalus sanguineus Latr.) 
Texas F. C. Bishopp (October 28). "This very troublesome pest was found 
for the first time in Dallas this fall. It was not known heretofore 
north of San Astcnio* In this instance the infested animal was 
introduced from South Texas several months ago and the ticks have been 
thriving and multiplying here." 
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