CHRYSOPHANUS DISPAR. 451 



about 0-5nim. broad, and 1mm. from middle line at anterior border of 

 segment; there is also a narrow, darker, dorsal line. The space above 

 the oblique lines is of the same colour as that below in dark pupa3, paler 

 in the pale pupa?. Below the oblique bands are two pale spots, also 

 obliquely placed ; these are nearly white in the palest pupae, but of the 

 same colour as the oblique bands in the darker. The dark dorsal line 

 is continued on the thorax, which presents dorsally (on all the seg- 

 ments) a paler tinting with darker spots. The two tints are the same 

 as those of the abdomen, but the pale being the ground colour, the 

 thorax, except in pale specimens, looks lighter tinted than the ab- 

 domen. The wings are pale, without markings, except the lighter lines 

 of the neuration, ending in a broad band outside " Poulton's line," 

 which is well-marked, and like the other neurational lines. The 

 spiracles are pale, looking like a third to the two spots above. The 

 prothoracic spiracle-cover is a narrow slip about 0'7mm. long, attached 

 to the mesothorax, and beautifully ornamented with a velvety coating 

 of very fine hairs, or spicules, each of which appears to be terminally 

 speculated, but they are so dense that a close view of one is not 

 obtainable. The antenna? extend to the end of the wings, 11mm. from 

 front (10mm. from base of maxilla?). The maxilla? disappear beneath 

 them at 6mm. from their base (4mm. from the end of the antenna?). 

 The second legs are a millimetre shorter, and the first legs end at 

 another millimetre nearer the head. The first legs are very large and 

 broad basally, and shut out the second legs from the eyes. The 

 labrum and jaws are small triangular portions, and the labium is un- 

 represented. In dehiscence the thorax slits down the back, and the head, 

 appendages, and antenna? in one piece, separate forwards more or less 

 from the thorax and wings. There is a strong tendency for the thorax 

 and wings to separate from the 1st and 2nd abdominal segments, and 

 even the 3rd, and the prothoracic and metathoracic pieces retain their 

 places by no very solid attachments. The surface has everywhere 

 (except on the appendages) a large number of "umbrella-hairs," or 

 "trumpet-hairs," least abundant on the dorsum of the abdomen, more 

 plentiful in the spiracular region (pi. xii., fig. 1), very numerous indeed 

 on the prothorax. A few somewhat ordinary hairs occur also on the pro- 

 thorax and near the abdominal spiracles, regions that also afford many 

 blank circles, that are of the same nature as the larval lenticles. The 

 disc of the prothorax is so occupied by lenticles and trumpet- (or 

 umbrella-) hairs, that only its margins show the sculpturing of points 

 and ribs that prevail elsewhere. On the appendages are not only no 

 hairs or lenticles, but none of the points either ; but the ribs form a 

 most elaborate and beautiful reticulation of sinuous lines, splendidly 

 developed on the wings, less so on the maxilla?. On the dorsa of the 

 abdominal segments, the lines of fine ribbing are straight, and have 

 points at each angle of intersection ; they form a set of irregular 

 polygons of various sizes. The points are rather wider than the ribs 

 they are on, and seem to be elevations with a rounded surface and an 

 impressed stellate sculpture on the summit. Neither hairs, trumpet- 

 hairs, or lenticles, take the place of these or occur on the ribs ; the 

 hairs and these points seem to be mutually exclusive. In the 

 spiracular region, where they are all very crowded together, a trumpet- 

 hair or a lenticle will frequently be seen on the line of a rib, and 

 apparently on it, but closer examination shows that the rib dies out 



