-10b- 
INSECTS ATTACKING MAN AND 
DOMESTIC. A,N I M A L S 
; MAN 
SANDFLIES ( Culicoides spp.)- 
Georgia. J'. B. Hull (March):. During.- the latter part of March the spring 
.emergence of sandflies began in the vicinity of' Savannah. Complaints 
were received, especially from residents of Wilmington Island. 
Florida. J. 33, Hull (March): On the island near Ft. Pierce sandflies annoyed 
workers almost every calm morning in March. On March 17 they were worse 
than they had been at any time previously during the season. 
NO-SEE-UMS (Leptoconops sp. ) 
Utah. G. F. Knowlton (April lU) : Biting ;midges, no-see-ums, are annoying 
to man at Promontory Point and west of Warren, in Weber County. 
. ' . AMERICAN DOG TICK (Der mace nt or variab ilis Say) 
Maryland. F. C. Bishopp (April IS): This tick has appeared in moderate num- 
bers during the last few days from Washington, D. C. , and nearby Mary- 
land. The absence of reports of the activity of thi-s tick, together with 
field observations, indicates that it has just appeared in noticeable 
numbers. . • 
Delaware. F. C. Bishopp (April 23): A few ticks were found on dogs in cen- 
tral Delaware. They are said not to have been in evidence earlier this 
spring. 
BLACK WIDOW SPIDER ( Latr odectus mac tans F. ) 
Nebraska. M. H. Swenk (April 22): A basement in Dawes County was reported 
on April 19 as infested with the black widow spider. 
Montana. H. B. Mills (April 22): Numerous inquiries have been received con- 
cerning the control of black widow spiders. • ' 
■ CATTLE 
SCREWWORM (Cochliomyia americana C. & P.) 
United States. W. E. Dove (April 30): The end of April finds the screwworm 
limited to the peninsular portion of Florida and to the southern counties 
of Texas, with indications of a. slight gradual spread, Specimens of 
larvae obtained from other States were found not to be 0. americana. 
Wound infestations occurring in other States were found in horn bases of 
dehorned animals and navels of calves and were usually identified as 
Phormia- sp. For the H-week. period ended. April 23 » screwworm control 
workers reported ^ t 310 cases from Florida a.s follows: Cattle 3il08, 
hogs 1,093. horses 25» mules 5» goats l jl , sheep 11, and other animals 17. 
The predisposing causes were tick bites lb, castrations 335 » dehorning 53» 
marking 206, branding -+5, in mothers of young animals 82, in navels of young 
2,832, breeding injuries 3. d.og bites 100, snags and scratches U36 , 
