Peckham—Revision of the Attidce of North America. 593 
ing thicker than the $. Spines, 5 9,1 tib. 3-3, on distal 
half, II tib. 1-1 and 1.1, below; I and II met., 2-2. 
The lip is plainly longer than wide and longer in the female 
than in the male. Sternum oval, truncated in front; coxse 
separated by the width of the lip. The color is similar in 
the two sexes. The body is black, the cephalothorax is covered 
dorsally over the cephalic plate and the anterior thoracic part, 
with green and copper-colored iridescent scales; there is a very 
narrow white line around the lower margin. Abdomen covered 
with iridescent green scales and there is a white basal band. 
Femur of palpus dark, other joints yellow, with metallic scales. 
In some males all the joints are darkish brown. The first 
leg is dark, except the last two joints which are yellow; there is 
a fringe of short thick hairs under the tibia; there are white 
scales on the inner face of the femur and bunches of white hairs 
on the distal end of the femur and proximal part of patella; the 
metatarsus is as long as the tibia. The other legs have the fe¬ 
mora dark; the other joints vary from yellow to brown in dif¬ 
ferent specimens, and have white and dark longitudinal lines 
running nearly to the ends of the legs. In large males the first 
leg is unusually long, both the patella and tibia being elongated. 
This species was first described from specimens from Mexico. 
Recently we have obtained others, well preserved and of both 
sexes, from Guadalajara, Mexico, and California. Cambridge 
reports it from Leapa, Mexico, and Guatemala. 
SIDUSA BOREALIS B. 1904. 
Plate XLVII, fig. 10. 
1904. Sidusa borealis g B., Jour. N. Y. Entom. Soc. XII, p. 116. 
“Eye-region black, concave behind, thoracic part pale reddish 
brown, darker on posterior part; clypeus brown; mandibles 
brown; legs yellowish-brown; leg I rather darker, and all fe¬ 
mora darker than other joints, no bands. Abdomen black at 
extreme base, then a curved transverse whitish band (not very 
clear) ; behind in the middle is a broad pale stripe to tip (not 
