419 Hentz's Descriptions of the 
spots, and a scolloped white line above, a white longitudinal 
line edged with black, and two white dots near the apex 
beneath; feet rufous, yellowish towards the end; male the 
same, with hairy legs. 
Observations. This very distinct and common species is 
of a middling size, seldom larger than the drawing. Its web 
is very compound, for it unites together that of a Tuerrprom, 
partly that of an AcELENa, and that of an Errira. The web 
peculiar to this sub-genus is in front, then usually a tube like 
that of AcELENA leads from this to one made of crossed 
threads like that of Turnrprom, at the upper part of which is 
constructed a tent covered with dried leaves in the manner of 
shingles, under which it remains sheltered during the day. 
The cocoon is in the shape of a button or flattened cone, 
sometimes brownish above and pale gray beneath ; as many 
as five have been found in a string, one above the other. The 
young when just hatched resemble the mother. The first 
time I found this spider, I also found the first MiugTUS,; which 
had invaded the web of one of these and taken its place, so 
that for a period I thought this species a. transition to that 
sub-genus. But this has all the characters of Errina. 
Habitat. North Carolina, Alabama. 
11. EPEIRA PROMPTA. 
Plate XXXI. Fig. 4. 
Description. Pale bluish; abdomen with two indented 
lines and several spots black; base of the thighs rufous, 8 
black ring between this and the tip, and black rings on the 
other joints. : 
Observations. This very distinct species is very active 
after sunset, running with great speed, and leaping like an 
Arrus. It is motionless during the day. A small specimen 
of this species was found in Alabama, with its abdomen 
underneath, having a central whitish spot. 
Habitat. Massachusetts. Alabama. 
