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AMERICAIT DOG TICK ( Derma centor variabi lis Say) 
Maryland. 3. "J. Cory (April 2Q): Young wood ticks arc abundant in low 
herbage at Public Landing. 
CATTLE 
5 CREW WOHMS ( Coch li omyia spp. ) 
Florida. J. R.- Watson (May 21): Screw worm damage is on the increase 
and the complaints are coming from farther south in the State than 
during the last 2 years. It appears likely that damage will be fully 
as severe as it has been for 2 years. 
General. S. C. Gushing (June 5): ^'« &• 3ruce states that in Florida 
sere 1 " worm cases arc increasing rapidly in most counties. Fifteen 
hundred cases have been reported from Alachua County and the outbreak 
extends as far south as the Caloosahatchee River and Saint Lucie Coun- 
ty. F.. A. Roberts states that in Georgia, the outbreak is centered 
in the south-central counties, with scattered cases as far north as 
Lincoln County. Total cases reported from the State are lUU in 
cattle, 105 in hogs, 110 in horses, 12 in sheep, 7 in dogs, and 1 in 
man. W. J. Soicer reports only light infestations in eastern Texas 
but the number of cases is increasing. 
Texas. H. E. Parisii (May 23): The screw worm has greatly increased in 
numbers during the past month. About S5 Percent of the flies taken 
in the traps belong to C. macellaria Fab. From a 1-quart sample of 
flies taken from the status trap operated at Menard, three were C. 
americana Gushing and Patton. 
HORN FLY ( Haematobia irrit ans L. ) 
Mississippi. C. Lyle (May 23): Inspector G. L. Bond reports that horn 
flies are rather abundant and are quite annoying to cattle in the 
vicinities of Moss Point and Pascagoula. 
Missouri. L. Kaseman (May 22): The horn fly is already abundant and is 
causing cattle much annoyance. 
SHORT-NOSED CATTLE LOUSE ( Haem ato Pinus eurysternuo NItz.) 
Nebraska. M. H. Swenk (May 20): The short-nosed cattle louse was reported 
infesting cattle in Hall County on May S. 
BEAVER 
BEAVER PARASITE ( Platypsylla caatoris Reitsema) 
Michigan. R. Hutson (May 8): On April 16 F. F. Tubbs reported a- slight 
infestation of beaver parasites in Marquette County. 
