146 ARANEIDEA. 
12. Misumenops modestus. 
Misumena modesta, N. Banks, Proc. Calif. Acad. Sci. (8) i. p. 262, t. 16. fig. 1 (¢) *. 
Type, 2, in Mus. San Francisco. Total length 5-6-5 millim. 
Hab. Norvu America, California !—Mexico, San Miguel de Horcasitas '. 
13. Misumenops consuetus. 
Misumena consueta, N. Banks, Proc. Calif. Acad. Sci. (3) 1. p. 262, t. 16. fig. 4 (?)°. 
Type, 2, in Mus. San Francisco. Total length 4°6 millim. 
Hab. Mexico, Tepic 1. . 
[DLEA. 
Diea, Thorell, Europ. Spid. p. 184 (1869-70). 
Type D. dorsata (Fabr.). Europe. 
Legs i. and ii. with the femora spinose, as well as the tibie and protarsi. Tibia and protarsi with lateral 
spines, as well as the paired spines beneath. Posterior row of eyes strongly recurved ; posterior laterals 
distinctly larger than the centrals. Lateral anteriors much larger than the centrals. Lateral eyes 
seated on two distinct tubercles, of which the anterior tubercles are the larger. Clypeus almost vertical. 
Tibie and protarsi i. and ii. much longer than the carapace. Central posteriors closer together than to 
the laterals. Central quadrangle a little longer than broad ( 3) or as long as broad ( @ ). 
These characters are inserted for the sake of comparison and are drawn from an 
adult female of D. dorsata. | 
XYSTICUS. 
Xysticus, C. Koch, in Herrich-Schiaffer’s Deutsch]. Ins. 1835, p. 129. 
Type X. cristatus (Clerck). Europe. 
Legs i. and ii. with the femora spinose, as well as the tibie and protarsi. Tibia i. and ii. with five pairs of 
spines beneath, protarsi with five pairs and three lateral spines on each side. Tarsi i. and ii. with from 
three to six denticles, and with two rows of bristles beneath, as in Miswmena. Femur i. with three very 
distinct spines on the upper surface, besides others. Body clothed with bristles or spines. The legs of 
the male much more spinose than those of the female. 
Eyes of the posterior row equidistant (or sometimes the centrals closer). Central quadrangle broader than long 
(often as broad as long), not narrower in front. Central anteriors further from each other than from the 
laterals. Posterior row much more strongly recurved than the anterior. 
It is scarcely possible in practice to separate this genus from Oxyptila, though the 
type-species of the two genera are very distinct. 
The above diagnosis is drawn from a female of X. cristatus (Clerck). In the 
American forms which I have examined the ocular quadrangle is scarcely broader 
than long, the central posteriors are distinctly closer, and the spines beneath the tibia 
and protarsi 1. and ii. are fewer by one pair. 
Of the species recorded from Central America, two, X. fissilis and X. orizaba, 
described by N. Banks, are not known to me, while the type of X. advectus is not 
mature: the characters of these cannot therefore be tabulated. The two others, of 
which the adult males are known, can be separated as follows :— 
