144 



[?, length 6.6 mm.; cephalothorax 2.5 mm.; legs 16.8, 11, 8, 12.8. 

 <?, " 4 mm.; " 1.8 mm. ; legs 13, 9, 6, 8. 



PI. 21, fig. 12, palpus of cf. 



The commonest house spider in New England, near T. lepidariorum and 

 T. sisyphium. 



Salem, Mass.; Providence, P. I.; New Haven, Conn.; Indianapolis, Ind.; 

 Deny, N. H., ? ; Ohio, <$, ? ; Ann Arbor, Mich.; Racine, Wise. J. n. e.] 



2. Theridion serpentinum. 

 PI. 16, fig. 2. 



Description. Rufous ; abdomen yellowish glossy, with two 

 winding lines, connected with the sides, black ; varied with 

 black underneath ; feet 1. 4. 2. 3. 



Observations. This spider was brought to me from Georgia 

 by Mr. Thomas R. Dutton. A specimen very much resembling 

 this was found in Alabama, but the tropin were those of The- 

 ridion studiosum, which is not as large a species as this. 



Habitat. Georgia. 



a 



[Lancaster, O., <$ and ?. Win. Holden. J. H. e.] 



3. Theridion marmoratum. 

 PI. 16, fig. 3. 



Description. Rufous ; abdomen with two impressed dots, 

 whitish, varied with black spots and veins, base whitish, piceous 

 underneath, with a few obsolete pale dots ; feet 1. 4. 2. 3. 



Observations. This spider, though closely related to T. 

 boreale and T. serpentinum, departs from the characters of this 

 subgenus by its tropin, which are those of Epeira, by a strange 

 anomaly. It is not uncommon under stones. The mouth was 

 examined several times, and always presented the character of 

 Epeira. It was always found under stones. 



Habitat. Alabama. March, June. [274.] 



[It has a whitish band on the anterior part of the abdomen 

 over the back part of the cephalothorax. Supplement.'] 



