The Arachnida of Colorado. 423 



Cybaeus sp. (?) 



One female, Dixon's Caiion, March (Gillette). 



Hahnia sp. (?) 



Fort Collins, one 3'oung specimen looks much like H. cinerea ; 

 among dead leaves (Gillette). 



THEEIDID.E. 

 Theridium murarium Em. 



Recorded by Dr. Marx. Fort Collins, one young specimen 



(Baker). 



Theridium frondeum Htz. 



Fort Collins, young (Baker). 



Theridium puncto-sparsum Keys. 

 Recorded by Dr. Marx. 



Theridium tepidariorum Koch. 



One young specimen from Fort Collins. 



Steatoda borealis Hentz. 



Fort Collins, sweeping low herbage ; under stones ; West Cliff; 

 May, November. 



Steatoda distincta'Tbor. 



Described from Manitou, June. 



Lithyphantes coroUatus Koch. 



Fort Collins, Leadville. Estes Park. Thorell had it from Idaho 

 Springs, Denver, Boulder and Manitou. June, July and August. 

 Lithyphantes marmoratus Hentz. 



Recorded by Dr. Marx. 

 Lithyphantes septem-maculatus Keys. 



Recorded by Dr. Marx. 



Euryopsis funebris Hentz. 



Fort Collins (Baker), West Cliff (Cockerell). 



Crusttilina sticta Cambr. 



Fort Collins ; sweeping low herbage ; under stones ; among dead 

 leaves. May, November. 



Lathrodectes mactans Koch. 

 Fort Collins, quite common. 



Grammonota pictilis Cambr. 



Fort Collins, under a board ; among dead leaves. November. 



Cornicularia auranticeps Em. 



Fort Collins, sifting dead leaves, February (Baker). 



