Sept., I9I4-] Emerton : New Spiders from Ithaca, N. Y. 263 



notch is turned outward and sharply curved upward at the end, Fig. 2. Both 

 the hard processes of the palpal organ are smoother and more slender than 

 they are in P. riparitis. Fig. 2b. 



Ithaca, N. Y., and Cornwall, N. Y. 



Gongylidium ornatus new species. 



This species is about 3 mm. long and instead of the usual dull gray is 

 brightly colored in dark gray and orange. The abdomen is dark above and 

 below and the mandibles and head are dark as far back as the dorsal groove 

 with the dark area sharply defined. The legs and hinder part of the cephalo- 

 thorax are orange without markings. The head is but little elevated in either 

 sex as in trilobatus, probatiis, etc. The mandibles are stout and at the base 

 rounded out in front. On the outer side they are roughened with small teeth 

 not arranged in a definite row. In the males the outer teeth are somewhat 

 larger and there is a prominent tooth on the front of the mandible near the 

 end. The male palpi are long, the tibia a little longer than the patella, Fig. 

 3&. The patella has a spur on the under side near the end as in Erigone. 

 The tibia is slightly widened at the end and only slightly toothed. The tarsus 

 is oval and small, hardly wider than the tibia. 



Ithaca, N. Y. Marsh at head of Cayuga Lake in December, C. R. 

 Crosby. 



Gongylidium undulatus new species. 



This species resembles G. (Tmeticns) contortus Em. Its size is the same, 

 1.5 mm. long, and it has the same pale dull color as most of this genus. The 

 mandibles of the male have a tooth on the front near the end and a row of a 

 few hairs on the outer side, each with a slight elevation around the base. 

 The male palpi suggest those of contortus but the process on the upper side 

 of the tibia is much larger, so that the apparent " contorsion " is less. The 

 hard processes on the end of the palpal organ are also larger. Fig. 4. 



Ithaca, N. Y., May, 191 1, Buttermilk Creek and marsh at inlet of 

 Cayuga Lake. 



Tmeticus index new species. 



A minute spider resembling T. entomologicus Em., 191 1, and T. acuini- 

 natus Em., Bull. Am. Mus. Nat. Hist., 19 13. The lateral eyes are closer to 

 the middle eyes than in entomologicus. The tarsi are round and the palpal 

 organ simple as in that species, but the tarsus has a long sharp point directed 

 straight forward. The length is less than 2 mm., the colors dull, translucent 

 gray with darker color between the eyes and on the end of the tibia of the 

 palpus. 



Freeville, N. Y., May, 191 1. 



Tmeticus conicus new species. 



Male, 2 mm. long. Cephalothorax dark brown. Abdomen dark gray with 

 light marks on the back in two pairs on the front half and in a single row 



