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BR07/N DOG TICK ( Bhj-picephalus sanguinlus Latr.) 
Maryland. F. C. Bishopp (August 20): Several heavy infestations of dogs 
and houses have "been reported from Baltimore "by some of the large 
insect- exterminating companies in that city. 
CATTLE 
SCRE'.Tv/OEM ( Cochiionyia americana C. & P.) 
United States. W. E. Dove (August 2k) : In Florida and in none of the 
"bordering counties of Georgia there was a low incidence, "but the infes- 
tations were well distributed. The rainfall and temperatures in these 
wooded areas were favorable for infestations, "but the small number of 
untreated injuries present did not permit the insects to increase. 
Cases were reported principally from navels of young animals and from 
tick bites, rather than from surgical operations and such preventable 
injuries. Prom August 1 to 21 there were 2,^75 cases reported fr^m 
Florida, U2 from Georgia, l6 fron Alabama, 13 from Louisiana, U from Miss- 
issippi, and 9 from South Carolina. The reported cases included those 
caused by maggots of "blowflies, as well as fr°m screwworms. The 
primary screwworm occurred in most of the counties of Florida and in 
two localities in Georgia. Specimens obtained from Lowndes County on 
July 29 and from Effingham County on August 13 were identified as 
C. americana . In South Carolina, Alabama, Mississippi, and Louisiana C. 
americana larvae were not found among specimens collectod from wounds. 
During the past 3 weeks there were 21,U56 cases reported fron Texas, 
1U9 frnn Arizona, 21 from California, 7i£>59 from New Mexico, and 170 
fron Oklahoma. Following shearing there was an abrupt increase to 
5,367 cases for 1 week. For the week ending August 21 there were 1,398 
cases in this State. The cases reported fron Texas include fron 7^ 
to 87 counties. In California. true screwworms previously were reported 
only from the southern part of the State. In August they were encountered 
in Tulare County. This spread is attributed to the natural movement of 
aninals to the lower lands and to the beet fields and stubbles of clover. 
At the stockyards in East St. Louis larvae of C. americana were obtained 
from injured animals in nine instances. The infestations were promptly 
treated "before the animals were reshipped. Three infestations were 
found in calves fron Fort iforth, Tex., which were consigned to the East. 
Two infestations were found in the stockyards at Kansas City, Mo., and 
were treated pro.nptly. Local infestations in Kansas were encountered 
in Wabaunsee and Greenwood Counties. In bcth of these counties efforts 
wore node to stamp out the introductions and there is no evidence of 
other cases. All aninals shipped to the Southeastern States arc "being 
examined promptly upon arrival. It is felt that reintroductions of the 
pest will be prevented from causing serious trouble. 
A 3L0Y7FLY ( Paralucilia fulvir.es Macq. ) 
Arizona. C. C. Deonier (August 26): A numer of specinens have been taken 
in fly traps in several localities in Arizona. Its occurrence in 
Arizona appears to be a new locality record for this species, as here- 
tofore it has been considered as being restricted in the United States 
