Peckham—Revision of the Attidm of North America. 531 
f Metatarsus of first leg flattened and colored iridescent 
j blue; femur of first iridescent below; tibia of first 
J with bunch of stiff dark hairs above and patella and 
] tibia with long fringe below; clypeus sometimes red. 
Utah, Colorado, New Mexico, Pacific Coast. hirsutus 
l First leg unlike the above . 13 
( Clypeus red. Brushes of stiff black hair under femur, 
13 J patella and tibia of first leg. California. signatus 
( Clypeus not red ... 14 
f Legs pale yellow, tarsus of first jet black. Clypeus with a 
curved white band under first row of eyes. California 
] ... tairsalis 
L Legs and clypeus unlike the above .. 15 
Clypeus covered with slightly iridescent white scales (not 
hairs), edged below with golden scales, with eight 
long white bristles in the middle. Abdomen white 
with two dark bands which do not meet at base. First 
leg fringed with black and white. Arizona .... arizonensis 
Clypeus unlike that of arizonensis .. 16 
f Three longitudinal lines of white hairs running back on 
eye-region. Abdomen black with central and side 
16 ■{ white bands. First leg fringed with black and white. 
i Eastern, middle and southern states. agilis 
{ No such lines on eye-region . 17 
15 
f First leg with white fringe, extending to end of meta- 
! tarsus, and having front face pale, with black spot at 
j end of tibia, and dark longitudinal lines on metatarsus 
i and tarsus. Arizona . tranquillus 
I First leg lacking the dark spot and lines found on that of 
l tranquillus, and without fringe under metatarsus .... 18 
First leg fringed and white, except tibia and metatarsus 
which are black. Abdomen with distinct white mark- 
i ing. Texas . delectus 
l First leg without such contrast . 19 
( Abdomen banded centrally with white. First leg with 
19 j double fringe. California, New Mexico, Arizona.... elegans 
( Abdomen not banded. 20 
' f Clypeus light brown; three transverse white lines alternat- 
j ing with black, in front of spinnerets. Mt. Shasta, 
i Cal . amicus 
20 ■{ Clypeus white on sides, with bunch of long tawny r$d 
i hairs in middle; dorsum and sides of abdomen covered 
with reddish-gold scales. Camp Umatilla, Washington 
L . umatillus 
2 -j ( Abdomen with iridescent scales . 22 
l Abdomen without iridescent scales . 23 
f Cephalothorax dark, iridescent. Eastern and middle 
22 j states, Washington. splendens 
i Cephalothorax not iridescent; covered with white pu- 
l bescence. Wisconsin. Pennsylvania . roseus 
36—S. & A. 
