LÉPIUOPTÉROLOGIE COMPARÉE 363 



The legs are blackish but the space between is not conspicuously 

 yellow as in hirtarui. The primary tubercles are just as in the 

 last instar. 



4th INSTAR. 



Length 2,; cm. 



I^readth 2,15 mm. 



Breadth of head 1,7 mm. 



The shape, while suggestuig triât of zonana is not exactly the 

 same as m that species. The body is longer and narrovver, and 

 the head, although not so small as that of hirlanu, is small. 

 The anal segments also differ owmg to the conspicuous dip from 

 the tubercles on segment 8 to the anal plate. It is just as distmctly 

 différent m shape and size from hirtana, as it is a trifle shorter, 

 and the two vvarts on segment 8 are much less and, similarly, the 

 two latéral anal pomts are much less pronounced. 



Heàd. Ground colour pale, purplish in a few, strongly marbled 

 with black. The mouth parts, except the labrum, are blackish; the 

 antennas clouded at the base, but the clubbed tip is paler. 



Body. The ground colour, although sometimes wholly shaded 

 with black, is a clear slate grey. The longitudinal stripes are ail 

 présent and the filling m, except in a few cases where it is yellow, 

 15 of much the same colour as the ground. Perhaps, if anythmg, 

 it is a little lighter in tint. The stripes are generally broken or 

 tend to break midway between the bars but almost m ail cases 

 the edging is dotted and incomplète as in zonana. The supra- 

 spiracular stripe generally, is merely represented by the irregular 

 remams of ther upper edging; it may be totally overwhelmed 

 by the blackish supraspiracular suffusion of zonaria. 



The yellow transverse bars may now be quite absent in some and 

 présent in others, but, when absent, their position is usually indi- 

 cated by the blackish suffusion seen before or after the bars in 

 hirtana. In a few, the only trace of the bar is a duU orange mark 

 appearing on the two medio-dorsal stripes. 



