Peckham^-Revision of the Attidce of North America. 533 
f Cephalic plate with four slightly oblique white bands on a 
a ! fawn ground; abdomen light fawn with dark mot- 
j tlings. Oregon . mundus 
[ Cephalic plate with three white bands ... 5 
f Clypeus with two faint chestnut spots; hairs around front 
| eyes all yellowish-white; cephalic plate gray with mid- 
! die bifurcating white band. Third leg 5.5 mm. East- 
5 j ern and southern states and Kansas . agilis 
i Clypeus with four bright chestnut spots; hairs above and 
i below front middle eyes rufus, while those on the sides 
! are white; cephalic plate with three longitudinal white 
l bands. Third leg 6.5 mm. New Mexico . politus 
f Thoracic part with scalloped white band behind dorsal 
| eyes; abdomen black with salmon markings. South- 
6 ■{ ern states . carolinensis 
No bands on upper surface; abdomen gray with lighter 
l markings. Southern states . sabulosus 
rj ( Abdomen plainly banded above . 8 
( Abdomen not plainly banded above. 19 
{ Abdomen with at least one transverse band behind basal 
band . 9 
Only longitudinal bands behind basal band, on abdomen 10 
f Color dark gray banded with light gray or white; abdomen 
| with two transverse bands, connected in the middle 
9 <{ calcaratus (southern states) or borealis (northern states) 
I Color yellowish with whitish bands. Sbuthern states, 
l Colorado .coronatus 
f Abdomen with central light band reaching a light basal 
2 Q I band . 11 * 
1 Abdomen without central light band reaching a light 
l basal band . 13 
f A central white band on cephalic plate; abdomen with two 
^ j dark longitudinal bands, interrupted near the end by 
j oblique white bars. New Mexico . Cockerellii 
l No central white band on cephalic plate . 12 
f Central and side notched white bands on abdomen, and 
dark bands between, interrupted in the middle by 
22 j oblique white bars. California, British Columbia .. jucundus 
1 Central and side white bands, not notched on edges, on 
the abdomen. Southern and middle states and New 
l England . peregrinus 
f Abdomen without light basal band but having a light 
23 J central band which reaches front end. Alberta, 
Colorado . montanus 
l Abdomen without light central band reaching front end... 14 
Abdomen dark in middle, with two longitudinal light bands 
14 ■{ which reach a light base. Arizona.scotsdalei 
Abdomen without two light bands reaching base . 15 
Posterior half of abdomen with solid white central band .. 16 
15 { Posterior half of abdomen with a white spot or a band of 
white chevrons .... 17 
* In 11 is included the female of peregrinus, although in Mr. Emerton’s 
specimen the central band becomes indistinct in front and behind. 
