332 ARANEIDEA. 
5. Arctosa parva. 
Trochosa parva, Banks, Proc. Calif. Acad. Sci. (3) i. p. 272". 
Hab. Lower Catirornia }.—Mexico, Tepic?. 
SOSIPPUS. 
Sosippus, KE. Simon, Ann. Soc. Ent. Fr. 1888, p. 205. 
Type S. mexicanus, E. Simon. Mexico. 
Posterior row of eyes slightly wider, and the middle row a little narrower, than the anterior, the posterior eyes 
being much larger and subequal, those of the anterior row, which is slightly procurved, being very small, 
the centrals slightly larger, the laterals prominent, situated on low tubercles. Tarsal claws three. 
Posterior spinners bi-articulate, the lower margin tridentate (at least in the examples before me, though 
Simon gives guadridentate as a generic character). 
Tarsi and about half the protarsi of legs i., ii., iii. scopulate; protarsus iv. not, and tarsus iv. feebly, scopulate. 
The protarsi of all four pairs of legs with a small central apical spine beneath. 
The spiders of this genus are very like Agelen@, not only in the shape of their 
body and the appearance of the legs, but to some extent in their markings. Still 
more do they resemble them in habits, for the web consists of a very large sheet 
of fine silk spun over the bushes, with a tube-like tunnel running down into some 
place of safety. Their movements are exceedingly rapid, and one cannot at first 
sight believe that they are not true Agelene. One species I met with in abundance 
on the Amazons. They are all very large, some of them measuring 22 millim. in 
length. 
1. Sosippus mexicanus. (Tab. XXXI. figg. 30, ¢; 31, 3la-c, ¢.) 
Sosippus mexicanus, EB. Simon, Ann. Soc, Ent. Fr. 1888, p. 206°. 
Type, 2, in coll. E. Simon, total length 15:5 millim.; deuterotype, J, in coll. Godman & Salvin, total 
length 12 millim. | 
Hab. Mexico!, Xautipa, Omilteme, Amula (H. 1. Smith); Guatemaua (Sarg). 
I can scarcely doubt that our specimens belong to this species, which seems to be 
fairly common, and the statement that Sosippus has four teeth on the lower margin of 
the mandible may be incorrect. 
Fam. AGELENIDA. 
The spiders usually referred to this family run almost imperceptibly through the 
Pisauride, and thus blend with the Lycoside. ‘The eyes are, however, more pro- 
nouncedly in two rows, both more or less procurved, or the posterior sometimes 
recurved. There is always present in the male a tibial spur on the palpus, as in 
the Pisauride. ‘The character by which Simon distinguishes the Agelenide from the 
Lycoside and Pisauride, viz. by the absence of the notch on the rim of the trochanter, 
is not constant, as in Agelena labyrinthica the emargination is quite evident. 
