ARGYOPIDA. 
B. Tarsi and protarsus iv. not so furnished. Legs clothed with spines and 
bristles, or bristles only, but not disposed in the same manner. 
i. Spiders in both sexes exhibiting on the external side of the basal 
segment of the mandible a striate, cuspulate, or cuspulo-rugulose or 
cuspulo-striate area, correlating with one or more cusps or spines on 
the inner side and at the base of the femur of the palpus . . 
ii, Spiders not exhibiting these stridulating-organs. 
a’. Mandible with or without a rudimentary rounded boss on the outer 
side at the base. 
a’. Boss absent. Margins of fang-groove armed with numerous teeth . 
b°. Boss rudimentary. Margins of fang-groove armed with few teeth . 
b'. Mandible with a distinct rounded boss on the outer side at the base. 
* Legs relatively longer; protarsi and tarsi longer than patelle and 
tibie. 
1. Vulva of female simple; posterior row of eyes straight ; carapace 
convex * 2 5 6 «© «© & «© @ ow ew ew ew ee 
2. Vulva of female developed; posterior row of eyes strongly 
procurved; carapace flat. . . 2. 2. 2. 1. 1. we ee, 
** Legs relatively shorter; protarsi and tarsi not longer than the 
patelle and tibie. 
a’. Spinners free, not lying within a chitinous sheath . 
6°. Spinners encircled by a short, cylindrical, chitinous sheath . 
Subfam. THERIDIOSOMATIN 2. 
413 
LINYPHIIN2. 
TETRAGNATHINA. 
METINA. 
NEPHILIN#. 
ARGYOPIN#. 
ARANEINA. 
GASTERACANTHINE. 
Central pair of spinners set longitudinally, parallel, between the posterior pair, together forming a straight 
transverse line ; anterior pair much longer. Tarsi and apical fourth of protarsus iv. set beneath with 
numerous serrated bristles (but not with a single series of stout serrate spines, as in the Theridiide). 
Legs armed with long, slender bristles and long, fine, silky hairs, especially above the tibie and 
protarsi i. and ii.; the patelle also with a long bristle at their apex above. 
Tarsal claws 3; super- 
numerary serrate spines (claws so-called) very distinct in Theridiosoma and Epeirotypus, less so in 
Wendilgarda. Colulus long and narrow. 
The spiders included in this subfamily combine in general appearance the characters 
of the Theridiide and Argyopide ; but the absence of a definite tarsal comb on the 
fourth pair of legs distinguishes them from the former, while the absence of spines on 
the legs separates them from the latter. The abdomen is more or less globular or 
angular-globose and the legs very short, longer in Wendilgarda. 
The genera which are represented in Central America may 
follows :— 
GENERA. 
A. Legs relatively much shorter. Eyes more closely grouped. 
a, Abdomen globular; central posterior eyes slightly closer to 
each other (one-quarter of a diameter apart, one-third from 
be recognized as 
the laterals) than they are to the laterals . . . . . . . Taeripiosoma, O. P.-Cambr. 
