131 



Remarks. This subgenus is closely related to Epeira, and 

 has nearly the same habits. The species composing it are read- 

 ily recognized by their long legs extended upon their geoim-t- 

 rical webs. They differ greatly in the length of their cheliceres, 

 but in other respects constitute a natural subdivision. 



1. Tetragnatha grallator. 

 PI. 15, figs. 1, 2. 



Description. Female: Testaceous, abdomen livid above, 

 with a scalloped longitudinal darkish band, darker beneath, with 

 a black longitudinal line and two yellow longitudinal [27] ones. 

 Cheliceres with two rows of teeth, one larger near the apex. 

 Male: Wholly testaceous or livid. Cheliceres much larger, 

 arched with two rows of teeth and three large prongs ; one 

 superior bifurcated at the end. 



Observations. This spider makes its web on bushes on the 

 margin of springs and rivers. When on a twig it extends all its 

 legs in one straight line. Its web is scarcely ever perpendicular, 

 but inclined, sometimes horizontal. 



This may be the T. ehngata of Bosc ; but as the name may 

 apply to my T. laboriosa, there will be less confusion in nsing 

 this appellation. 



Habitat. Pennsylvania, North and South Carolina, Alabama, 

 etc. 



[Taken in April and May, one specimen in a dry place in a 

 tree far from water. Supplement.] 



[Ohio, Wm. Holden. .j. u e.] 



2. Tetragnatha laboriosa. 

 PI. 15. fig. 3. 



Description. Rufo-testaceous ; abdomen yellowish with black 

 branching lines above; a black central longitudinal line, and 

 two yellow ones beneath : feet and cheliceres of moderate 

 length; male with the same marking: cheliceres larger but not 

 as elongated as in T. grallator. 



