290 SPECIFIC DESCRIPTIONS OF 



fore- centrals are wider apart than each is from its fore- 

 lateral. I have also noted a similar difference in 

 regard to N. Mandersijernce. The fore-centrals are 

 also smaller in the female than in the male. 



The two species, although bearing such great general 

 similarity to each other, may be at once distinguished 

 by several very tangible differences. First in regard 

 to the male. The cephalothorax of N. meridionalis has 

 the whole caput of an almost uniform dark brown 

 colour, two slender yellow lines beginning, one a little 

 way behind each lateral pair of e3'es, and converging 

 rather quickly towards each other, run on nearly 

 parallel, but in close proximity together to the 

 thoracic fovea. The centre of the thorax is 

 also dark brown, the brown portion formed by radia- 

 ting confluent patclies, rather than by distinct lines as 

 in Manderstjern(je. The curve of the thoracic fovea is 

 sharp, in fact more in the form of a straight line with 

 the ends bent down. 



The cejjJialothorax is of nearly one uniform level 

 and convexity above; the caput being a little more 

 rounded than the thorax ; the eye eminence seemed 

 to be rather higher than in N. Mandersijernce, and 

 the cli/peus, which is steepish, is impressed in the middle 

 and exceeds in height half that of the facial space ; 

 on the lower margin of the clypeiis is a transverse row 

 of several strong prominent bristles. There were no 

 bristles behind the eyes, and no appearance of any 

 liaving been broken off there (the female, however, 

 has a single longitudinal row on the caput). The 

 lateral and hinder margins of the cephalothorax, how- 

 ever, are, in the male (but not in the female) clothed 

 with black bristles and bristly hairs. 



