No. 2.] SPIDERS OF THE MARPTUSA GROUP. 93 



We found this genus upon an old species, Marpissa mil- 

 vina C. Koch, described in Die Arachniden, XIII., p. 65. It in- 

 cludes Marpissa Lubomirskii Taczanowski (Les Araneides du 

 Perou, p. 219). 



Although Koch's description and drawing of milvina are 

 very good, we have thought it best to re-describe it, as we make 

 it the type of a genus. 



BREDA MILVINA C. KOCH. 



Plate A^IL, Fig. 7—76. 



9 Length, 13. Length of cephalothorax, 5.8 ; Avidth of 



cephalothorax, 4. Some females are only 8 or 10 



mm. long. 

 Legs, 4132; the first, second and third are nearly equal in 



length; the first pair is the stoutest, the second 



next. 

 The quadrangle of the eyes is equally wide in front and 

 behind. The middle eyes of the first row are fully twice as 

 large as the lateral and stand out verj' prominently. The 

 labium is as wide as long and is one-half as long as the max- 

 illse. 



The cephalothorax is dark brown, with the eye region 

 black. In the post-ocular depression and extending backward 

 from it are some white hairs, and there is a narrow white band 

 around the lower border. Around the eyes of the first row are 

 some stiff, upright, black hairs. On the clypeus are some long 

 hairs, which are white, tinged with coj^per color. The fakes are 

 dark red-brown, with a few white hairs. The palpi and legs are 

 brown and hairy, the first pair being the darkest. The abdomen 

 is brown and hairy. The sides are covered with white dots in 

 the anterior part and with copper-colored dots behind. The 

 upper dorsal surface has a longitudinal, angular band which 

 is white in front and copper color behind, Avhere it sends out 

 some projections toward the sides. Underneath, near the 

 spinnerets, there is, on each side, a distinct, round, white or 

 copper-colored spot. 



