Zool.— Vol. I.] BANKS— MEXICAN ARACHNIDA. 245 



white above, and with a broad median reddish stripe. Legs and abdomen 

 clothed with long black hairs. Cephalothorax low, quite slender; P. M. E. 

 more than their diameter apart, a little closer to S. E.; A. M. E. as large as P. S. 

 E., and about their diameter apart; mandibles quite long, vertical. Legs quite 

 short; femur I much stouter than other pairs, and a little longer than cepha- 

 lothorax, all with many slender spines; sternum longer than broad, pointed 

 behind. Abdomen a little less than twice as long as wide, base truncate, 

 apex broadly rounded. The palpus has a slender, nearly straight tube ex- 

 tending from near base to tip, a quite strong curved hook at base; tibia 

 slightly prolonged on the inner side. 



One male; no locality. 



128. Floronia adstricta Keys.? — One female, probably 

 this species, which was described from a male from Utah. 



129. Bathyphantes transversus, sp. nov. 



Plate XIV, Fig. 14. 



Length 2 mm. Cephalothorax yellow-brown, darker on margin; eyes on 

 black spots; legs yellowish, an indistinct dark spot near base of femur, and 

 indistinct dark bands near middle and tip of tibia; sternum yellowish. Ab- 

 domen whitish, with four or five transverse black bands, and the apex black; 

 venter darker, with a black stripe each side and over middle of base. Cepha- 

 lothorax broad, depressed; head broad; posterior eye-row procurved; P. M. E. 

 less than their diameter apart; sternum as broad as long, blunt-pointed be- 

 tween hind coxae, sides rounded. .Legs slender; femur I as long as the cepha- 

 lothorax, hairy, and with a few scattered spines. Abdomen about twice as 

 long as broad, truncate at base, pointed behind . Palpus large, the tarsus is 

 swollen above, the tube is coiled once around on top of the bulb, the hook is 

 not very prominent. 



One male; La Chuparosa. 



130. Bathyphantes formica Em. — One female; El 

 Taste. 



131. Bathyphantes tragica Marx ms. 



Plate XIV, Fig. 17. 



Length $ 2.3 mm. Cephalothorax light olive brown, with a darker, indis- 

 tinct and often interrupted marginal band, pars cephalica small, with a dark 

 brown V-shaped spot at its posterior angle, from the eyes of the posterior 

 row dark lines extend to this V-shaped spot; mandibles olive brown; maxillae 

 dark olive brown, with the inner half white; labium dark olive brown, with a 

 white line at tip; sternum dark olive brown. Abdomen gray, with a blackish 



