The At^achnida of Colorado. 431 



Astia vittata Heutz. 



One iiijile, Fort Collins (Gillette). 

 Icius vitis Ckll {Dendryphantes). 



Fort Collins, sweeping, May, September. 

 Icius monticola Bks. 



One male, iMoon's Ranch, near Livermore (Baker). 

 Icius similis Bks. 



Fort Collins, sweeping. May ; Four-mile Hill, Jul}-. 

 Attus monadnock Em. 



West Cliff (Cockerell). 

 Attus palustris Peck. 



Fort Collins, on lawn (Mrs. Baker). 

 Habrocestum decorum Elk. 



Fort Collins (Baker). 

 Habrocestum ccecatum Htz. 



Fort Collins, sweepings May. 



Habrocestum clypeatum Bks. 



One male, Dixon's Canon, May (Baker). 

 Habrocestum sp.? 



One young specimen. Elk River, July (Baker.) It may be H. 

 montanum Em. 



Ergane borealis Blk. 



Hamrinc hoyi Peck. 



Fort Collins sweeping. May. 

 Synageles picata Htz. 



One specimen. Fort Collins, sweeping, May (Baker). 



PHALANGIDA. 

 Sclerobuiius robustus Pack. 



West Cliff (Cockerell). 

 Taracus packardi Simon. 



Described from the State ; unknown to me. 

 Trachyrhiiius favosus Wood. 



Fort Collins, under stones and among dead leaves. Common. 

 Homolophus biceps Tlior. 



West Cliir, Fort Collins, Trinidad, Four-mile Hill. Common. 



PSEUDOSCOEPION IDA . 



Chelifer cancroides Linn. 



Fort Collins, one specimen (Baker), 



