54 J. II. Emertot) — New Emjland Therididm. 



abdomen. The colors and whole appearance of this spider make it 

 resemble the young of larger species. 



I have found it under leaves near Fresh Pond, Cambridge, Mass., 

 and abundantly on fences at New Haven, Conn., during the autumn 

 flights. 



Tmeticus contortus, new. 



Plate XV, figure 5. 



This is another immature appearing species, slightly wider 

 across the thorax than the last and darker colored. The shape of the 

 palpus is very distinctive. Figs. 5, 5a. The tibia is turned aside at an 

 angle of 45° with the rest of the palpus, and carries the triangular 

 tarsus at the outer end. On the curved part of the tibia is a lai-ge 

 and a small tooth. Fig. 5a. 



Cambridge and Waltham, Mass. 



Tmeticus longisetosus, new. 



Plate XVI, figure 1. 



About 2""" long, light grayish yellow. The mandibles of the male 

 have a prominent tooth on the inner corner projecting forward. Figs. 

 la. The ]>arts of the palpal organ are small but the tarsal hook is 

 large with two teeth on the end, as in the preceding species. Near 

 the base of the tarsal hook are two stout bristles as long as the 

 tarsus and curved so as to fit against its edge. Figs. 15, <*, d. 



New Haven, Connecticut, under leaves Oct. 15, 1880. 



Tmeticus pertinens, 



Erigone pertinens Camb., Proc. Zool. Soc. London, 1875. 



Plate XVI, figure 2. 

 Length, 2-5""". Cephalothorax wide and ))alj)i short. Cej)halo- 

 thorax vdlow-brown, legs same color but lighter. Abdomen dark 

 gray. The sexes are much alike. The male has the usual tooth on 

 the front of the mandibles. The male palpi have the tibia expanded, 

 with the two large teeth tui'ued o\it\vard on the upper side. The 

 tarsal hook is flat with two teeth. Fig. 2. The appendages of the 

 palpal organ are large and C()ns[)icuous. The e[»igynum lias the 

 two upper lobes about as wide as the middle one and sei)arated 

 more than their width from each other. Fig. 2^'. 



