*-341- 
as CoriPus hyalinus by Mr* J» M» Langs ton were reported as 
very abundant on althaea plants' at :Brando.n l% en September 
17. . ■'■ , '.", .7. 
suisflower: 
SUNFLOWER CaTEKIILLAR (Suleiraa helianthana Riley) 
Delaware H. L* Dozier (October 31): The heads of sunflowers at Newark, 
were being attacked during the latter part of September by 
larvae of Suleima helianthana Riley. About 80 per cent of the 
seeds from the many flowered double variety, Helianthus flore 
plento mult'i flora , were destroyed while the adjacent single 
flo-ered variety was not attacked. 
INSECTS ATTACKING MA N A N D 
.DOMESTIC ANIMALS 
. MAN 
FLEAS (Siphonaptera) 
General Summary F. C. Bishopp: Fleas have been unusually abundant and trouble- 
some in many parts of the United States during the summer* In 
fact, these insects have caused more annoyance than for many 
years. The dog flea ( Ctenoceo ha.lus can is Curtis) and the cat 
flea ( Ctenocephalus felis Boucht; 1 ) have been principally con- 
cerned, but infestations of the human flea ( Pulex irritans L.) 
have also been reported, especially from the South and from 
central States. Although most of the trouble has occurred 
in dwellings, in many instances outbuildings, lawns, 
and general infestations of entire farmsteads have been reported* 
DOG FLEA (C tenocerhalis can is Curtis) 
Nebraska M« H* Swenk (September i-October 1): Complaints of infestations 
of farm premises by the dog flea continued to be received dur- 
ing the early part of September, 
Texas \l<, E« Dove (Octooer); During the past two years several 
visits wore made to the city dog pound of Dallas, As is custo- 
mary in most cities, the dogs obtained from the street** are 
held in the pound for five days. At Dallas the dogs are kept in 
pens which are provided with sand floors. At frequent intervals 
sawdust is applied as a topping for the sand. During dry weather 
such a floor is very favorable for the development of fleas, 
and the latter are veil supplied with eggs of the dog tapeworm 
Dipylidium canin um L. Examinations of the intestines of dogs 
furnished striking evidence of mass infestations of young stages 
