THE GENUS ACRONTCTA AND ITS ALLIES. 247 



in rinnicis attitude, with a lateral bend at 6 and g, but never 

 curls right round as when younger. The head varies much in 

 coloration, or rather in the extent to which the black yields 

 to ochreous above, green in front, peach-blossom on the 

 cheeks, and pinky-cretaceous in the ocellar region. In one or 

 two, the head is black with a tawny spot on each vertex and 

 a green line down each side of the clypeus. In another, the 

 clypeus and a great streak on each side are green, there is a 

 great patch of peach on each side of this, more again behind 

 the ocelli, and a greenish-cretaceous patch behind this — the 

 tawny vertex is large and has several subsidiary portions 

 below, the black being reduced to a wide margin round the 

 tawny patch extended a little below, and a black streak along 

 the ocelli. In one specimen, the black is reduced to a few 

 spots, the tawny above and the peach below are continuous — 

 there is a black streak along the extreme margin of the cor- 

 neous head below and behind. The rich pinkness of the peach 

 colour varies a good deal, in many it is as rich as the patches 

 in Thyatira batis. The dorsum of the 2nd segment, as the 

 larva is at rest, looks to be part of the head, being of the same 

 colour and texture, several hair bases in it being tawn}-, as is 

 one on the head. The dorsal dark band is now quite con- 

 tinuous with a definite margin, ver}' broad in 2, 5, 8 and g, and 

 so narrowed in 6 and 7 as to include only the anterior trape- 

 zoidals. These tubercles are all black with tawny tips. The 

 tubercles elsewhere are green with, in some places, a wash of 

 indian ink, so as faintly to] indicate them by a different tint. 

 The trapezoidals and supra-spiraculars have each one black 

 hair, a primary one, and several smaller secondar}- ones also 

 black, of which one is often larger than the rest, thus the first 

 secondary' hair on the 6th anterior trapezoidal is larger than 

 the primary one on 11. The post-spiracular has several hairs, 

 one of which looks dark in some lights, the sub-spiracular and 

 marginal have each several long pale hairs, of which it is 

 difficult to say that any one in particular is the primary one. 

 The posterior trapezoidals of 5, 8 and g and all of 12 are 

 especially large, this results in a suggestion of a hump on 5, 

 chiefly due to attitude, and a decided one on 12. The dorsal 

 mark is faintly margined by yellow, rapidly shading into the 

 green sides, there is an indication most marked on 10 and 11 

 of a tawny (paler) dorsal line, and this continues as a darker 

 (deep purple) narrow line down the green posterior portion of 

 1 2th, and the green 13th and 14th segments. The rest of the 



