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head I0 USE ( Pedi cuius. hum anus hum anus L. ) 
District of Columbia. H.- 'Lv -Trembley (February 25) : Abundant anong Washington 
school children. Pediculosis seems to he confined to certain sections and 
is found almost exclusively among white children . ” 
SANDFLIES ( Culico ides spp . ) 
Florida. S. W. Simons (Februrry 24): Several residents near Tyndall Field, 
Panama City, have been annoyed recently by 'sandflies. 
J. B. Hull (January 31)* These flies were not nearly so numerous dur- 
ing January as in December 1941. 
AMERICAN DOG TICK ( Dernacentor varia.bilis Say) 
Mississippi. C. Lyle (February 16):. Specimens ware received from Harrison 
' County, vrhere they were reported on walls and furniture in an apartment 
dwelling. 
BROWN DOG TICK (Rhipicephalus sanguine.us Latr.) 
Michigan. Ei I. McDaniel (February 26) i This tick was reported in Detroit 
feeding on a dog lent month. 
West Virginia. H. L. Trembley (.January 3l) : Specimens received from a. house 
in Bluefield, This is the first record this Division has of this species 
from this State. 
CATTLE 
SCREWWORMS ( Cochlionyia, spr>.) 
Mississippi. C. Lyle et al. (February 23): Specimens of the screwvorm (£, 
anericana C. & P.) vrere received from Ta.te and Yalobusha Counties late 
in October. Cattle, hogs, horses, and mules vrere reported to be infested. 
Specimens of the secondary screwvorm (C. nacellaria F.) were received 
from Pearl River County early in February; reported as infesting sheep. 
STABLEFLY ( Stomoxys calcitrans L. ) . 
Florida. S. W. Simmons (February 25): In northwestern Florida, where the 
dogfly overvrinters in peanut litter in the fields, pupation and emergence 
of adults occurred during warm periods; however, in February it was pos- 
sible to find larvae in some locations in sufficient numbers to warrant 
control tests. At Canbellton as many as five flies may emerge each day 
from 1 cubic foot of litter, and several hundred adults may be observed 
on objects in the' peanut fields. 
HORSE 
WINTER 'TICK ( Dermacentor albipictus Pgck. ) 
Wyoming. H. D, Port (February 25): Elk ticks were submitted from horses in 
Platte County, vrhere they are reported as numerous this winter. This is 
