Attldm of North America. 23 



falces iridescent; mouth-pai-ts, sternum, and cox^ reddish brown;, 

 venter with two white longitudinal bands enclosing a darker central 

 region; legs black, barred with dark red, with short white hairs, and 

 a heavy fringe of black hairs on the underside of the tibia of the first. 

 Habitat: Texas. 



PHIDIPPUS MEXICANUS Nov. Sp. 



Plate II, figure 7. 



$ . Total length 11.4 mm. Width of abdomen 5 mm. 



Cephalothorax: length 6.5; width 5; height 3.6. 



Legs 16.3, 12.7, 11.2, 14.5; patella and tibia of the first, 6.7; pateUa and 

 tibia of the third, 4; patella and tibia of the fourth, 5.3; metatarsus 

 and tai'sus of the fourth, 4.8. 



Cephalothorax widely rounded. First row of eyes much curved; lateral 

 separated from middle eyes by one-half their own diameter. Clypeus 

 one-fourth as high as large middle eyes. Falces wider than first row 

 of eyes, more than twice as long as face. Maxillaj long, widened 

 and truncated at extremity, with projection at outer corner, cut ob- 

 liquely on inner side, and excavated for labium. Labium less than 

 half as long as maxillae, contracted and blunt at tip. Sternum one- 

 half longer than wide. Anterior cox^ separated by a little less than 

 width of labium. 



Coloration: Cephalothorax probably covered with snowy white hau's, ex- 

 cepting a dark brown band around the margin; in our specimen these 

 hairs are largely rubbed ofi". Clypeus Avith white hairs. Abdomen 

 black with a hauy white band at base, a large central white sjjot 

 beliind middle, and posterior to this an interrupted, curved, white 

 band. Falces brilliant iridescent green. Palpi covered with white 

 hairs. Legs very hairy; femoral and tibial joints with black, other 

 joints with white, hairs. Other parts all black. 

 From the collection of Count Keyserling. 



Habitat : Mexico. 



PHIDIPPUS INSOLENS Hentz. 



Plate I, figure 12. Plate II, figures 12, 12a. 



Syn.: 1844. Attus insolens Hentz, Journal Bost. Soc. Nat. Hist., Vol. IV, 



1845. " podogrosus id., ibid., Vol. V. 



1875. " msoZens id., Coll. Arach. Writ, by N. M. Hentz. Ed, 

 by Burgess, Boston, p, 51. 



1875, " jJocZof/ro.SHS id., ibid., p. 61. 



1877. PHIDIPPUS coloradensiH Thorell, Descr. Ai-aneae coll. in Color- 

 ado, p, 523. 



