628 Characteristics of the Insect-Fauna 



Secondaries deep cinnamon-red. Two broken black 

 lines traverse the wing : the first starting from the costal, 

 crosses the space between it and the subcostal at an 

 angle of 45'' to the latter, and striking a little within its 

 bifurcation, starts again from the bifurcation, and follow- 

 ing generally the outer limit of the cell, sweeps round to 

 the bifurcation of the median, whence, with a succession 

 of regular sweeps, it reaches the inner border ; the second 

 is composed very distinctly of three parts ; the first of 

 those starting from the costal and reaching the subcostal, 

 takes a direction nearly parallel to, but turned inward a 

 little more than, the previously mentioned line, so that, if 

 continued, it would strike the last bifurcation of the sub- 

 costal ; the second part starting a little beyond a point on 

 subcostal opposite the origin of the line upon the costal, 

 traverses the next two spaces at right angles to the ner- 

 vules, with a shallow curve opening outward; the third 

 part originating on the last nervule of the subcostal, at a 

 point as far removed from the second part of the line, as 

 the second is from the first, crosses to the inner border, 

 taking a general direction parallel to the first line, by a 

 series of irregular broken lines or shallow curves, the first 

 opening inwards, the other outwards. These two black 

 lines are narrowly bordered on the sides toward one an- 

 other with ochraceous scales, generally more prominent 

 upon that portion of the first which crosses the spaces be- 

 tween the costal and subcostal and between tlie subcos- 

 tal and median nervures, frequently forming conspicuous 

 patches, occasionally more or less interspersed with whit- 

 ish scales ; generally the main space between the two 

 black lines, which in A. Boisduvalii forms the broad me- 

 sial band, is of the same cinnamon-red as the immediate 

 base ; at the base there is a white spot between each of 

 the principal nervures, and a small black spot, faintly 

 bordered with white, in the middle of the cell ; apical half 



