No. l.J ATTIDjE of central AMERICA. 79 



not black but dark brown, the first pair being darkest, and there 

 are no pale rings on the femoral joints of the third and fourth. 

 The thoracic part of the cephalothorax, instead of falling very 

 gradually for part of its length, and then more steeply, as in 

 regia, rounds off broadly from the dorsal eyes to the posterior 

 margin, with no point at which there is a distinct difference in 

 the direction of the slope, although the fall is more abrupt 

 toward the end. The relative length of the legs is 1324 ; the 

 first pair being plainly longer than the third. 



We have several males from the eastern part of Guatemala. 



HERACLEA SANGUINEA, VAR. PARADOXA. 



This variety seems to be in all respects identical with san- 

 guinea excepting that the relative length of the legs is 1342, 

 We have several males from the same region as sanguinea and 

 regia. 



HERACLEA RUSTICA, SP. NOV. 



Plate IV, figs. 2-2c. 



S . Length, 9. Length of cephalothorax, 4 ; width of 



cephalothorax, 3. 

 9 . Length, 8. Length of cephalothorax, 3.8 ; width of 



cephalothorax, 2.9. 

 Legs, S 1432 ; $ 3412 ; first pair stoutest in both 



sexes and much longer in the male than in the 



female. 



The cephalothorax is rather high, higher than in regia. 

 In the female the line of the upper surface is gently curved, 

 the thoracic part having the same inclination as the cephalic 

 until just in front of the posterior border, when it falls abruptly. 

 In the male the thoracic part falls more steeply than the 

 cephalic, making a short, rounded convex slope to the margin. 

 The quadrangle of the eyes occupies about half the cephalo- 

 thorax in the male, and a little less in the female. The second 

 row is a little nearer the first than the third. The third row is 



