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



271 



short projections upon the pale venter; brown at base of the spinnerets. Ab- 

 domen light brown above, with darker spots, and two larger ones at base; 

 S palpus pale except the brown tarsus. First eye-row curved, plainly shorter 

 than the second. Legs long and stout; three pairs of nearly equal spines un- 

 der all tibia;, hair under tibiae and tarsi of anterior pairs so dense as to almost 

 form scopulas; sternum not much longer than broad. Abdomen short, 

 pointed at base and behind, not depressed. 



One male; Hermosillo; a female, probably of this species 

 (immature), from San Miguel de Horcasitas is colored about 

 the same, but the anterior tibiae are scarcely darker than 

 the femora. 



336. Lycosa futilis, sp. nov. 



Plate XVI, Fig. 32. 



Length ? 11. 2 mm.; ceph. 5.8 mm. long, broad 4.2 mm.; tibia plus patella 

 IV 5.8 mm. Cephalothorax pale yellow-brown, a faint narrow pale stripe 

 each side, and a narrow median one starting as a line between eyes of second 

 row, gradually widening to the groove, then tapering to the hind margin; 

 eyes on black spots, radial furrows darker than elsewhere; mandibles reddish; 

 sternum and legs pale yellowish, no markings. Abdomen with a basal dark, 

 almost blackish, spear-mark reaching to the middle of the dorsum, surrounded 

 by pale which is continued, as two rows of spots, to the tip, each side of the 

 pale is an irregular brown stripe; sides and venter pale. Anterior eye-row 

 curved, a little shorter than the second row. Legs short; three pairs of 

 nearly equal spines under all tibiae. Abdomen subcylindrical, broadly rounded 

 at tip, subtruncate at base. The <5 is similar to the 2 but a little smaller; the 

 palpi wholly pale and very short. 



Agua Caliente, Orizaba, Motzoronga, and Tepic, Oct. 

 Two specimens from San Jose del Cabo are rather darker 

 and have an irregular black spot on the basal part of the 

 venter. 



237. Lycosa mexicana, sp. nov. 



Plate XVII, Fig. 3. 



Length $ 16 mm.; ceph. 7 mm. long, broad 4.8 mm.; tibia plus patella 

 IV 7 mm. Cephalothorax dark red-brown, a broad stripe of white hair 

 above, broad as the space between dorsal eyes, then tapering behind to a 

 point; mandibles almost black; sternum and coxa; blackish; legs reddish 

 brown, no marks; abdomen dark brown above, a basal black spot each 



