20 



Habits. Araneides sedentary, dwelling in silken tubes, 

 under stones or in crevices. 



Observatmis. The large size of the cheliceres, and other 

 minor characters, show some affinity to Mygale. The only 

 species here described being made known to me by Dr. T. W. 

 Harris, of Massachusetts, I am not acquainted with many facts 

 necessary to give a good history of this subgenus. 



Dysdera interrita. 



PI. 2, fig. 1. a and b. 



Description. Ferruginous ; cephalothorax and trophi piceous. 



Observations. This species was communicated to me by my 

 excellent friend Dr. T. W. Harris, of Massachusetts, who [225] 

 sent me the male and the female, also, with a correct sketch of 

 both sexes. It inhabits that State, and was found in cavities 

 under ground, under rotten wood, etc., in the month of May. 



[?, length 12.4 ram. ; cej^lialothorax 5.2 mm. ; legs 13, 12, 9.5, 12.8. 

 cf, " 14.5mm.; " 4.6 mm.; " 12.5,11.8,9,11.8. 



Palpus of d", PI. 20, fig. 1. Claw of first foot, fig. la. Young -with ceph- 

 alothorax reddish-yellow like the legs. This is the only species of Dysdera 

 I have found in Massachusetts. Hentz's original drawings are lost. 



Dyxdera ruhicunda Blackwall, Spiders of Gt. Britain and Ireland. 

 " " Menge, Preussische Spinnen. 



West Roxbury, Mass. cf and young in June, 9 in October. F. G. Sanborn. 



Maiden, Mass. H. L. Moody. 



Brookline, Mass. A. Smith. 



Mass. ?, Wm. Holden. ,j. H. E.] 



Genus. Pylarus. Mihi. 



Characters. Cheliceres small, fang very sliort., maxillce 

 slightly inclined over the lip, long and slightly rounded at tip; 

 lip tapering, half as long as the maxillce ; eyes six, equal, in 

 three p>airs, tivo in the middle and ttvo each side, placed diag- 

 onqlly on a common elevation, nearer the anterior edge; feet, 

 first, second and fourth jjairs subequal, third shortest, penult i- 

 7nate joint of the first pair armed tvith hooks in the male. 



