-22- 
INSECTS ATTACKING MAN AND 
DOMESTIC ANIMALS 
MAN -•: . 
BLACK WIDOW SPIDER ( Latrodectus ma c tans Fab.) 
Mississippi. C. Lyle (February 23): On February 7 a correspondent at 
Ruleville sent specimens with a report that he had recently found 
five of these spiders in his plant bed. 
Nebraska. M, H. Swenk (December 20 to February 19): Specimens of the 
black widow spider were received on January g and February lU from 
Antelope and Furnas Counties, respectively. 
CATTLE 
COMMON CATTLE GRUB ( Hypoderma lineatum DeVill.) 
Mississippi. C. Lyle (Febraary 23): In December a correspondent at 
Perkinston sent specimens taken from the back of a cow; earl^ in 
January specimens taken from a mule were sent from Winona. 
Kansas. H. R. Bryson (February 26): This cattle grub is abundant ir. 
the northwestern corner of the State. 
SCREW WORMS ( Cochliomyia sop. ) 
Mississippi. C. Lyle (February 23): Reports of infestations of the 
screw worm were received from various sections of southern Mississippi 
at intervals throughout the winter. 
A BUFFALO GNAT (Simulium sp. ) 
Mississippi. D. W. Grimes (February 22): A fev buffalo gnats were ob- 
served at Hoffman. 
LONG-NOSED OX LOUSE (Ljno gnathus vituli L. ) 
Nebraska. M. H. Swenk (Jsmiarv 15): A Kearney County correspondent re- 
ported that hig calves were -infested rith long-nosed cattle lice. 
HORSES 
3R0WN WINTER TICK (Dermgcentor nigrolin eatus Pack. ) 
Mississippi. C. L^le (February 23): A correspondent at Okolona recently 
sent to this office specimens taken from a. horse. 
