554 Wisconsin Academy of Sciences , Arts and Letters. 
both sexes, ( makes it easy to recognize the species. The abdo¬ 
men is black with a tbin covering of dark yellow bairs; there is 
a basal band, an angular spot behind the middle, and a scalloped 
border on the posterior two-thirds, white, the spot being some¬ 
times connected with the base by an indistinct whitish band. 
The legs and palpi are ringed with very dark brown and light 
brown, the light parts being covered with pure white scales, so 
that the effcect is of black and white rings. In the male the pal¬ 
pal tarsus is black, with long white hairs. 
We have numerous examples from Texas. 
The female is much like carolinensis, which, however, lacks 
white lines on cephalic plate, has the central abdominal spot 
narrower, and twice as long as wide, has two white dots at spin¬ 
nerets, and has two oblique bands on sides of abdomen sometimes 
united below, different from the wide scalloped band of viridi- 
pes. Carolinensis has also chestnut on clypeus, and the epigy- 
num is different. Several species have on the middle of the 
eye-region, two white lines from between the large eyes to the 
dorsal eyes, but no other has, like viridipes, these lines running 
straight back, not touching the dorsal eyes. 
Mr. Emerton has called our attention to the fact that our P. 
Howardii is identical with viridipes H., and that the species 
which we have called viridipes must have a new name. 
PELLENES GRISEUS P. 1901. 
Plate XLVIII, fig. 12. 
1901. P. griseus F., Bull. Wis. Nat. Hist. Soc., N. S., I, 4, p. 221. 
$ . Length 6 mm. Legs 3412. Spines, tib. I 3-3, tib. II 
2-1-1, and one anterior lateral; met. I and II 2-2, pat. II 1 
anterior lateral. 
The cephalothorax is covered with gray hairs which are 
tinged with yellow on the eye-region, where there are some erect 
black hairs. The clypeus is covered with white hairs. The ab¬ 
domen is gray with a central white band, composed of indistinct 
chevrons, behind the middle. On the edges of this band are ob- 
