AttkUe of Noiih America. 11 



PHIDIPPUS (C. Koch.) 



Cephalothorax high and convex, contracted in front and behind, sides 

 usually widely rounded, especially in 6 , cephalic part inclined for- 

 ward, and separated from the thoracic by a depression; thoracic part 

 slanting, at first gradually and then more steeply from the dorsal eyes. 

 Quadrangle of eyes ^ wider than long (excepting arizonensis, which 

 is + wider than long, and opifex which is f wider than long), wider 

 behind than in front; anterior eyes small, in a curved row, the mid- 

 dle not more than twice as large as the lateral, and but little separ- 

 ated; the lateral separated from them by from -J- to f their own 

 diameter; eyes of second row twice as far from dorsal as from lateral 

 eyes; eyes of third row about as large as lateral eyes, at least as 

 far from each other as from the lateral borders. Third row of eyes 

 narrower than the cej)halothorax at that place. Clypeus from J to 

 ^ as high as large middle eyes, vertical. Falces usually stout and 

 nearly twice as long as face. Labium longer than wide, about ^ as 

 long as maxillae. Sternum deep set, projecting between the anterior 

 coxas which are separated by width of labium or a little less. Legs 

 ( <5 ) 1, 4, 2, 3; ( ? )4, 1, 2, 3, or 4, 1, 3, 2; first leg stoutest, with femur 

 and tibia enlarged and compressed, stouter than patella, and much 

 stouter tlian metatarsus and tarsus. Tibia and patella of the first 

 iisually a little shorter than cephalothorax; tibia and patella of the 

 third shorter than tibia and patella of the fourth; tibia and patella of 

 the fourth at least as long as metatarsus and tarsus of the fourth. 

 Femoral, tibial, metatarsal and sometimes patellary spines on the 

 four pau's; metatarsi of the fourth, spined throughout their length.. 



PHIDIPPUS MORSITANS Walckenaer. 



Plate I, figures 1, 1 a. Plate 11, figure 1. 



Sijn.: 1837. ? Attus morsitans Walck., Hist. Nat. des Insectes Apteres, I. p. 

 432. 



1844. " audax Hentz, Journal Boston Soc. Nat. Hist., Vol. IV.. 



1845. " tripunctatusid.,ihi{X.,Yd\..'V. 



1846. VmmF^XJ^variegatus C. K., Die Arachn., XIII, p. 125. 

 1846. " pnrpurifer id., ibid., XIII, p. 127. 



1846. " umaragdifer id., ibid., XIII, p. 128. 



1846. " alchymista id., ibid., XIII, p. 131. 



1846. " rufimanus id., ibid., XIII, p. 132. 



1846. ■' Z(tJt«Zafi<sid., ibid.,XIII, p. 133. 



1846. " mundulus id., ibid., XIII, p 137. 



