1944] Three Species of Coleosoma from Florida S3 
anterior, sides evenly rounded, slopes gradually from eye area 
to posterior margin, thoracic groove punctiform, posterior 
margin indented with a chitinized hump on each lateral lobe, 
probably on which the abdomen rubs; eyes cover two-thirds of 
head, seen from above, anterior row recurved, eyes small, sub- 
equal and equidistant, posterior row slightly procurved, so that 
lateral eyes touch, eyes subequal and equidistant; quadrangle 
narrower in front and as high as width behind; clypeus strongly 
convex, more than twice as high as eye area, with no groove 
below anterior eye row; mandibles small, weak, vertical; labium 
wider than long; maxillae more than twice as long as labium, 
inclined, tips almost touching; sternum brown, more than two- 
thirds as wide as long, convex, triangular, widest between I 
coxae; abdomen cylindrical, black, constricted posterior to mid- 
dle with constriction marked by a narrow white band, anterior 
portion larger, at base a thin, chitinized plate or sheath that 
extends in two blunt points over cephalothorax, and is con- 
tinued on venter to fold, which is posterior to middle, dorsum 
with a few long colorless hairs, venter black, spinnerets at tip; 
legs, 1-4-2 -3, long and very slender, I pair more than twice as 
long as entire spider, yellow with a black line on femora, tip of 
IV tibia and base of metatarsus dark, no spines but lines of 
colorless hairs; palpus longer than cephalothorax, dark, termi- 
nal joint very broad, embolus starts from lateral margin above 
in distal half, and almost completes a circle, tip with an abrupt 
turn, at end, a wide dark piece with an uneven tip. 
Female. Length, 1.7 mm., ceph. 0.7 mm., abd. 1.0 mm. 
Cephalothorax not as wide as in male, a dull brown, with a 
narrow black marginal line; eyes same as in male; abdomen a 
dull gray, with a median dark stripe from pedicel to tip, sides a 
dull gray, abdomen prolonged in a slender conical projection, so 
that height above spinnerets equals length on venter from pedi- 
cel to spinnerets, venter dull gray from pedicel to spinnerets, 
fold much nearer pedicel than in male; legs , long, slender, pale; 
epigynum , area not quite as long as wide, two dark tubes be- 
neath the skin, close together at anterior end, but separating 
near fold where a short median dark tube can be seen. 
Allotype $ Florida; Fort Myers, 25 June 1941, M. C. Z. Coll. 
2 $ Florida; Sebastian, March 1944, (Nelson) 
$ s 9 s Florida; Fort Myers, 25 June 1941, Barrows Coll. 
