-21- 
California. R. E. Campbell (January 23): After several warm, dry days, 
adults are active and flying about at Alhambra. 
TROPICAL PAT MITE ( Li~oon:;ssus bacoti Hirst.) 
California. D. B. Mackie (February 25): This blood-sucking mite was 
submitted to the Entomological Service of the Department of Agricul- 
ture in Sacramento on January l6 vith bhe information that it is ■ 
causing considerable trouble in an apartment house. Typical dermatitis 
was present on two members of the custodian's family. Considerable 
trouble also is experienced from rats. This is a second record for 
Sacramento. 'The previous one was made in 19-3^» Che only other State 
record is one from San Diego in 193°» 
CATC] 
SCREW WORMS ( Cochliomyia spp. ) 
Florida. F. C. Bishopp (February 27): The number of screw worm infesta- 
tions in Florida from Dixie, Gilchrist, Alachua, Putnam, and Flagler 
Counties southward, was decidedly lower during the week ending Febru- 
ary 15 than for any other weekly period of the winter. 
F. S. Chamberlin (January): The screw worm is apparently 
causing no injury to livestock in Gadsden County. 
Alabama. J. M. Robinson (February 25): Tae screw worm was rather scarce 
. over the State, until October, when it appeared in a few scattered 
counties in rather large numbers. It was found as far north as Flor- 
ence, Lauderdale County, 
Texas. A. W. Lindquist (January): A minor outbreak of p_. americana C. and 
P. occurred in Uvalde County in January, The cause of most of the 
trouble was docking sheep, although other types of wounds also became 
infested. The weather apparently was ideal for screw worm attack, 
being characterized by hot days above average and ccol nights below 
average. Most of the ranchmen reported more or less screw worm trouble. 
One man had 26 cases in 100 docked sheep. Five collections from these 
showed C_. americana , and probably all cases were of this species. A 
ranchman hear. Rio Frio reported that of hi docked sheep, 25 were lost 
because of screw worm attack. Some of the cases observed were very bad, 
harboring from 1,000 to 2,000 C. americana larvae and many eggs. At 
Sonora and Menard, about 150 miles north of Uvalde County and at a 
considerably higher elevation, no screw worm cases were observed in 
January. 
