-gO- 
California. R. H. Smith (January 20): This rnitq presumably has. "been the 
cause of considerable discomfort to persons in Los Angeles. 
AMERICAN DOG TICK (D ermacentor variabilis Say) 
Massachusetts. C. N. Smith (March 25): The first adults were taken this 
season on March 21 on Marthas Vineyard Island. One male was found 
on my clothing while I was looking for ticks. Five males and five 
females were taken from a dog "before they had become- attached, and 
several specimens were taken from another dog. Each of the three 
lots was taken "by a different collector in different localities, all 
on. March 21. The temperature reached 68° P.. at this time, the first 
day since fall that it has "been over 60^. Ho larvae, or nymphs have 
"been collected this spring. 
CATTLE 
SCREWWORM ( Cochliomyia americana C. & P.') 
Georgia. A. L. Brody (March 29) : An infested hog near Quitman was re- 
ported on January 21. A farmer also reported another case in his 
locality about the middle of February. 
Texas. D. C. Parman (March 25): Screwworm flies (C. americana ) were 
practically exterminated during the summer of 19-37 j n tbe southern 
areas in Texas where traps have been operated, at Catarina, Laredo, 
Hqbbronville, Alice, and Three Rivers. In.no catch since August 
1937 have there been more than one or two flies in any of these 
traps, none has been taken since December, and only one in December. 
The trappings have indicated that weather conditions have been very 
favorable for build-up. of C. macellaria . There were 15 quarts of 
flies taken at Laredo in January, practically 8J percent of which 
was this species. In February the traps at Laredo, Hebbronville, 
and Alice took 21, 26, and 19 quarts of flies, respectively, and 
approximately 90 percent of these were C. macellaria. 
Arizona. C. C. Deonier (March 25): Screwworms were taken at Bumble Bee 
and Wichenburg during the latter half of January and at Hassayampa 
during the first part of February. They were also taken at ITogales 
and Tempe during the latter half of February. A considerable out- 
break of these pests was indicated by examination in the Yuma area 
on February 17, infestations being as high there as 20 to 30 percent, 
A few cases of scre7morns have been reported throughout the area 
worked during the winter. 
STABLEFLY ( Stomoxys calcitrans L. ) 
Georgia. A. L. Brody (March 25): These flies were first noted at Val- 
dosta during the first week in February, when from 10 to 15 adults 
per animal were seen. The flies were usually found on the lower 
