336 Wisconsin Academy of Sciences, Arts, and Letters. 



In our specimens the ceplialotliorax, althongli badly rnbbedy 

 shows patches of yellowish white hairs on the cephalic part and 

 behind the dorsal eyes. Hairs of the same color surround the 

 eyes of the first row, while across the lower edge of the clypeus 

 is a row of pure white hairs. The f alces have some white hairs 

 on the front surface. The abdomen is brown, with a wide, white, 

 transverse band of scales near the anterior end, another, nar- 

 rower, just behind the middle, and two pure white spots, one on 

 each side, just above the spinnerets. In some cases there is a 

 slender line of small yellowish chevrons running forward from 

 the spinnerets to the posterior band. 



In this species the cephalic part is strongly inclined and the 

 eyes of the first row are large and close together, forming a 

 somewhat curved row. 



We have one male and three females from the Amazon. 



In general appearance the female of E. valida much resembles 

 that of Dynamius placatus, but in the former species there are 

 two white dots above the sj^innerets, which have the form of bars 

 in placatus, 



Escambia electa, sp. nov. 

 PL XXVI, figs. 11-llc. 



Length, ^6.5 mm. ; ? 5.5 mm. 



Legs, $ 3421 ; $ 3412. The first and second pairs are a little 

 the stoutest. 



This species is very like valida, the male having fringes of 

 black hairs on the first three legs, metallic lustre on the first and 

 second, and all the tarsi pale. In both sexes the cephalic plate 

 has a covering of yellowish scales, while the thoracic part shows 

 patches of white hairs ; there are wide white bands on the sides. 

 The rings around the eyes of the first row are distinctly yellow- 

 ish, but the hairs all over the clypeus and the front faces of the 

 f alces are white. Under alcohol the abdomen has a dark back- 

 ground with a white transverse band near the anterior end, and 

 two white horseshoe shaped marks behind, which begin on the 

 dorsum, curve down low on the sides and then bend up again in 

 front of the spinnerets. When the spider is dry, these white 



