292 PROCEEDINGS OF THE ACADEMY OF [March, 



two, and they intergrade in size and color, so that I have conckided to 

 regard them as one species. It is possible that Emerton's vulpina is a 

 color variety of this species; but of vulpina I have seen only an adult 

 male (labelled so by Mr. Emerton), and no adult female, so that I could 

 not decide the point. 



Habits. — This is a species of moist ground and meadow land, and 

 at Austin is very abundant under stones on the margin of Shoal Creek. 

 The males and the young are more or less diurnal, the grown females 

 nocturnal. 



Lycosa relucens Montg. 



Lycosa relucens Montgomery, 1902. 

 Lycosa verisimilis Montgomery, 1902, 1903. 



(Specimens from Pennsylvania, New Jersey, and Austin, Texas.) 



Eyes. — First row straight, narrow^er than the second, nearer to the 

 clypeal margin than to the second row, eyes adequal in size. Eyes of 

 second row largest, about 1.5 times their diameter apart. Length of 

 the dorsal eye area to the cephalothorax, 6^ 1 : 4.5, 9 1:5. Quadri- 

 lateral of the posterior eyes broader than long. 



Form. — Cephalothorax highest at the posterior eyes, in front trun- 

 cated and not one-half its greatest transverse diameter, sides of the 

 head nearly vertical (cJ*) or more oblique ( 9 ), anterior margin of the 

 liead projecting slightly in front of the clypeus. Chelicera with 3 pairs 

 of teeth, longer than the width of the clypeus, their length about twice 

 the height of the head in front. Labium longer than broad, apically 

 rounded (?) or truncated (d^), not one-half the length of the maxillae. 

 Sternum large, longer than broad. Length of leg IV to cephalothorax 

 as 4 : 1, metatarsus IV shorter than the patella and tibia combined. 

 Spinnerets equal in length. ? palpal claw with 3 teeth. 



Remarks. — The very considerable variation in the form of the epi- 

 gynum led me originally to divide this into two species. Recently I 

 have obtained individuals with the epigynum quite intermediate in 

 structure between the extremes first found. The specimens from Texas 

 are larger than the northern ones. 



GEOLYCOSA nov. gen. 



I propose this new genus for those species, previously included in 

 Lycosa, in which the first leg is thickest and strongest, furnished with 

 thick scopulse on its three terminal joints, and almost as long as the 

 fourth (shorter by not more than one-half the length of tarsus I). 

 Geolycosa latifrons is the type species. 



In Geolycosa latifrons the cephalothorax is very high in the cephalic 



