( 3 ^ ) 
pellucid, like a coat or membrane. At the extremity is C. a tubercle feated on the curvature, 
which I know not whether to call a tefticle or not. D. and E. fhew the two other hairy 
joints of the arm. The arms of the female are cylindric, and are harlh, with unequal hairs 
and prickles. The holders are obtufe, perpendicular, fliining, with a fine fcattered down 
upon them, black, and armed with fhort daws. The eggs are yellowifh, feparate, fmall, 
round, in two or three mafles, involved in a flender bag, hung in a web, fixed to a wall, in a 
dark place. The females conftantly guard them, except when they go to feize flies, which are 
catched in their webs. None of the young, which come out the middle of June, attain their 
perfect form the fame year. 
This fpecies weaves a web, as thick as that of the former , aflbrtment, and as flat. But fince 
thefe, befides the flat web, throw out threads more or lefs perpendicular, and are in fhape 
different from the others, I have no doubt but that they belong to this divifion. 
SPECIES XII. — A. Triangularius, 
TRIANGULAR-SPIDER. 
These copulate the beginning of September. Plate 3, fig. i. This and the foregoing 
fpecies might be taken for the fame, on account of the fimilitude of form, and manner of 
weaving their webs, were it not that other circumftances perfuade us to the contrary. 
The two lowermofl: eyes in the middle, are lefs and nearer together than the two upper 
ones. The two fide-ones are fo clofe, that they can fcarcely be diftinguifhed. The legs are 
gloffy, flender, longifli, downy, and furniflied with long prickles. The legs of the male are 
longer than thofe of the female. The thorax is ovate, rather flender, and carinated towards 
the anterior part j wider and flattifh towards the hinder part, and flightly, or even fcarce at all 
downy. The abdomen bright, hollowed, and marked on the upper part by a fliarp white 
line, and on each fide towards the lower part with a fmall yellowifh one. Three reddifh 
marks, which are almofl: triangular and continuous, occupy the upper flat part, in a longitu- 
dinal diredion. This flattened part is thinly fcattered with foft and very fhort down. The 
arms 
