-621- 
AlvIERICAN DOG- TICK ( Permrtcentor var iabilis Say) 
Masr.achuscttn. C. N.' Smith (October- 1-8) : ■ Activity almost ceased by 
October 1 but cU few scattered specimens were tolcen as late as October 
10 on -Martha* s ‘Vineyard* 
BK0I7N DOG TICK ( Rh i p i c e nhalu s sanffliinehs Latr.) 
Virginia* H, G, Walker (October 28): Reported as rather heavily infest- 
ing dogs in ITorfeik. The ticks were also causing a great deal of 
annoyance 'by crawling -all over several rooms in this home. (Det* 
by H. E. Ewing.) ’ . 
Correction : The note on Derma^centor v-ariabilis Say reported in In- 
.. .. sect Pest Sur'-^ey Bulletin dated October 1 (vol. 18, no. 8, p« 5?l) 
was incorrect, as the nyinphs werg later determined by R. A, Cooley 
as R, sanguineus . 
BLACK WIDOW SPIDER ( Latrodectus mac tans E, ) 
Virginia. P. C. Bishopp (October 25)* On October 2^ these spiders were 
reported to bo extremely abundant on a faj'jn in Pairfanc County. 
Shirty were killed, in. a relatively brief examination abo\it the house. 
Spiders of various sizes were present. 
District of Columbia. J. M, Brennan (October 25) i Investigation of an 
infestation in a residential section of Washington substantiated 
the report that this species is fairly abund<ant. On September lU 
almost every drain-pipe in a stone retaining wall extending for two 
blocks contained one or more female spiders, in v-arious stages of 
development.' Six egg cases were present in'one nest. The food 
supply appeared to consist principally of beetles, especially 
Phyllophago. sp. On revisiting this section on October 11 j 22. 
female spiders, 3 which were mature, were found within half an 
hour. 
Nebraska. M. 'H, Swenk (October 2l): Inquiries as to control around 
school buildings and in caves were received from Polk, Platte, 
Boone, and Wheeler Counties from September 21 to October 20. 
Ka,nsas. 'J. R. Horton (October 3)j Tlireo females observed at different 
times during July, in a weather instrument shelter and in other 
outbuildings. Several specimens- — male, female, and young — 
were brought to the laboratory for identification. 
Utah, G, P. Knowlton (October 15)j A large black widow spider took 
up residence in my own house at Logan, causing annoyo.ncc to the 
family uiitil it was destroyed. 
