380 LÉPIDOPTÉROLOGIE COMPARÉK 



On the last threc abdominal segments, ail Lhe dorsal bUipes 

 become confused and tend to mcrge nito one another. 



The spiracular stripe varies greatly m breadth and regularity 

 and also in colour, but it is usually primrose tinted. On the last 

 subsegment it dips, and then a detached branch arises just behind 

 the yellow spot derived from hirtaria. It tends to break in the 

 middle of each segment. On the prothorax, it only exists as a 

 yellow spot before the spiracle, whilst on the meso- and meta- 

 thorax it is quite reddish. The usual yellow spots and lines of 

 hirtaria persist and can be observed as brighter spaces within 

 the stripe. The collar is very clear and is formed of yellow spots, 

 more or less connected, at the ends of the stripes. The prothoracic 

 plates are somewhat indistinctly outlined in paler yellow and Lre 

 black spotted. 



The anal flap is grey, thickly black blotched, and the two pro- 

 minent spots and the four terminal warts émit short bristles. In 

 shape, it is a part of a broad parabola. Before it are the two 

 yellow spots found in denhami, but they are reduced by the en- 

 largement of the black base of the seta. On segment 8 may be 

 found two black warts which vary exceedingly in size; sometimes 

 they are black and sometimes brownish and pale ringed. The 

 spiracles are fairly large and rounded and are surrounded by 

 a pale ring, which is, in turn, outlined in black. In most cases 

 they just touch the spiracular line. 



The slightly spreading anal prolegs bear a plate behind, which 

 in colour is grey, black spotted. In front, they are more purple 

 but are marked similarly. The other prolegs are coloured in the 

 same way, laterally, they may be yellow mixed. The space 

 between the prolegs is yellow becoming more purple behind. 



The two medio-ventral stripes are fairly developed and are 

 very distinct on the last subsegment on which they approach each 

 other, only to continue nearly parai lel for the bulk of the next 

 segment, before the end of which they diverge again. The edging 

 of both is quite irregular and the hlling is in yellow. Between 

 the stripes, the ground is paler. As we approach the spiracular 



