626 Characteristics of the Insect-Fauna 



have found is on the sedgy plateaus either on the northern 

 or southern side of Mount Washington, from one quarter 

 to three quarters of a mile from the summit ; other insects 

 of the alpine ro^gion may be found most abundantly upon 

 the stones which have been piled up by enthusiastic pedes- 

 trians upon the various isolated elevations, forming pillars 

 of three or four feet in height ; those upon the summits of 

 Mount Adams have furnished me the richest harvests. 



ARGYNNIS MONTINUS Scudd., Proc. Essex Inst. III. 16G. 



Above, deep fulvous, marked with black, with black ner- 

 vures. Primaries. A rather narrow, interrupted, zigzag me- 

 sial band, consists of five dashes : the first starts from the 

 upper branch of subcostal nervure at three fifths the dis- 

 tance from the base of the wing, and crosses the spaces be- 

 tween the subcostal nervules in a direction at right angles 

 to the uppermost, and is sometimes connected above with 

 the costal border by a small spot ; the second crosses the 

 space between the adjacent nervules of the subcostal and 

 median nervures in the same direction, but removed out- 

 wards from the first by its own width ; the third crosses 

 the space between the uppermost branches of the median 

 in the same direction, but removed inwards from the sec- 

 ond by double its own width ; the fourth, with its inner 

 border scarcely removed from the divarication of the up- 

 permost branches of the median, crosses the next space at 

 right angles to the nervules ; the fifth crosses the space 

 between the median and submedian, at right angles to the 

 nervules, removed outward from the fourth by its own 

 width ; the inner border, up to this part, is dusky, as is the 

 base of the wing; within the mesial band there are three 

 short transverse bands crossing the cell, the outermost bor- 

 dering it, and the innermost only not reaching the median 

 nervure, and frequently having a fulvous central streak ; 

 another spot is frequently seen within these when not ob- 



