THOMISID. 129 
subfamilies, of which the chief characteristic differences are given in the subjoined 
table :— 
SUBFAMILIES. 
I. Labium and maxille normal, not attenuate or acuminate at the apex. 
A. Lower margin of the fang-groove at least not armed with denticles ; 
often, too, the upper margin is unarmed. Legs ii. longer than legs i. 
a. Tarsi i. and ii. scopulate beneath, in the female at all events. Hairs 
of body pubescent or plumose, prone, not erect. Legs iii. and iv. 
not or scarcely shorter than i. and ii. - + « « + « » PHILODROMINE. 
b. Tarsi i. and ii. not scopulate beneath. Hairs of body filiform or 
bacilliform, erect. Legs iii. and iv., as a rule, much shorter than 
iandi 6. 1 ee eee ee eee wee ee 6M UM ENING. 
B. Lower margin of the fang-groove, and upper margin as well, armed with 
denticles. Legsi.andii. subequal . . . . . . . . . . . SQTEPHANOPSINA. 
II. Labium very narrow, attenuate and acuminate at the apex. 
a. Sternum not narrowed behind, normal, produced as far as cox iv. 
Mandibles with a tuft of hair at the apex beneath . . . . . . StTROPHIINA, 
6. Sternum narrowed behind, not produced beyond coxe ii. Mandibles 
| without any tuft of hair at the apex . . . . . . .) .) . ) . «=APHANTOCHILINA, 
Subfam. PHJZLODROMINA. 
The members of this subfamily may be generally recognized by the longer third and 
fourth pairs of legs, by the scopulate anterior tarsi, and in some genera the protarsi 
as well. The hairy covering of the body is not, as it is amongst the more typical 
Thomiside, spiniform and erect, but plumose or pubescent and prone, or adpressed to the 
body, though there are exceptions. The lower margin of the fang-groove is not armed 
with denticles, and the second pair of legs is longer than the first pair. ‘This 
subfamily is represented in all tropical, semitropical, and temperate regions of both 
hemispheres. ‘The spiders of the genus Philodromus usually inhabit foliage of different 
kinds, while those of Thanatus and Tibellus are generally found amongst dry grass or 
amongst rushes and sedge-grass in swampy places. 
The genera may be roughly separated as follows, though, without much greater 
research, no final declarations can be made as to the tenability of these tabulated 
differential characters :— 
GENERA. 
A. Legs iv. shorter than legs i, [Posterior row of eyes slightly recurved 
or almost straight (Edo). Posterior eyes equidistant, or much further 
from each other than from the laterals. Legs iii. equal to or a little 
longer than legs iv.] 
1. Legs ii. much longer than legs i. Central anterior eyes larger than 
lateral anteriors. Posterior row of eyes almost straight, slightly 
recurved 2 2. ew . . . « « Eso, Keys. 
BIOL. CENTR.-AMER., Arachn. Aran., Vol. II., June 1900. sf 
