1945 1 Southern Spiders 181 
longer than wide; maxilloe one and a half times as long as 
labium, outer half black, narrow; sternum pale, with vague 
elongate dark marks opposite coxae, nearly as wide as long, 
(3.0 : 3.5), ending in a sharp point between fourth coxae; 
abdomen almost black with middle area paler, widest at base 
and tapering to width of spinnerets at tip, venter black; legs 
pale with a narrow ventral black stripe on femora, posterior 
femora with a ventral line of black dots parallel to black line, 
spines long and black, few trichobothria on ventral surface of 
femora near base; palpus black, not as long as cephalothorax, 
tibia slightly longer than patella, with a very large spatulate 
process with two small marginal chitinized teeth near base on 
ventral side, no chitinized lobe on base of cymbium to interlock 
with tibial process, cymbium covered with black hairs, almost 
as wide as long, (4:5), ending in a very slender tip. 
Female. Length, 6.0 mm., ceph. 2.5 mm. long, 1.6 mm. wide, 
abd. 2.8 mm. long. 
Cephalothorax same as in male, but clypeus pale with two 
dark lines from a.m.e. that continues the length of the man- 
dibles; eyes same as in male but surrounding black rings nar- 
rower and area between eyes covered with short white hairs; 
abdomen with a wide median pale stripe, sides black, venter 
pale with two parallel dark stripes; legs same as in male, tricho- 
bothria very prominent on ventral surface of femora near base; 
epigynum with a wide hairy median lobe, with a rounded tip 
that does not reach fold, each side are chitinized areas which 
partly surround the transverse openings, anterior to openings 
but below surface are dark sacs. 
Holotype, 9 Florida; Sebastian, 1-8 April 1944, (Nelson). 
Allotype, $ Florida; Sebastian, 1-8 April 1944, (Nelson). 
Paratype, S Florida; Sebastian, 1-8 April 1944, (Nelson). 
In 1902, F. O. P.-Cambridge described in the Biol. Centr.- 
Amer., vol. 2, p. 344, Oxyopes tibialis from Guatemala. The 
description is very brief and the clypeus is described with “fine 
black line on each side that crossing the clypeus and running 
down the mandibles, and a narrow black line running down the 
anterior side of the femora of all four pairs of legs.” The tibia 
of the palpus is figured with “a long conspicuous process be- 
neath it, strongly and concavospatulate at the apex.” The fe- 
male of Oxyopes nelsoni has the black lines on the clypeus and 
mandibles, and the black lines on the femora but the tibial 
