MARCH 25, 1915. | Vou. I, pp. 42-43. 
PROCEEDINGS 
| OF THE 
THOREAU MUSEUM OF NATURAL HISTORY. 
MIDDLESEX, SCHOOL, 
CONCORD, MASSACHUSETTS. 
A LIST OF ARANEIDA COLLECTED AT 
CONCORD, MASS. 
BY J. H. DEMPSEY. 
The following is a preliminary list of Spiders from Con- 
cord, Massachusetts, collected since 1901. This list comprises 
only a small portion of the species that should be found in the 
township. All the specimens here given are represented in 
the colleetion of the Thoreau Museum of Natural History, 
and were determined through the kindness of Mr. J. H. 
Emerton of Boston. / 
ARANEIDA. 
Family: Uloboridae. 
Uloborus plumipes Lucas. 
Family: Dictynidae. 
Amaurobius sylvestris Emerton. 
Family: Drassidae. Ground Spiders. 
Gnaphosa brumalis Thorell. 
conspersa Thorell. 
Family: Theridiidae. 
Theridion differens Emerton. 
tepidariorum C. Koch. 
Enoplognatha mormorata Simon. 
Pedanostethus riparius Keyserling. 
42 ea of 
