NISONIADES TAGES. 279 



On abdominal segments there are five, whose length is respectively as 

 4:2:1:1:1. On the first, at position of i, is a distinct black circle (lenticle), 

 which may actually represent i ; there is no indication whatever of ii, 

 except on some segments, in rather stronger hairs ; but iii may be repre- 

 sented by a lenticle at approximately its usual position ; iv and v are 

 apparently represented by two black circles, rather close together and 

 close to spiracle, these, like the others, are small, but typical lenticles. 

 Below these at a little towards the front of the segments (approximately 

 vi) are two lenticles close together, and one above the other. This last 

 pair, however, only exist on the 1st and 2nd abdominals, and iv and 

 v (?) fail by the time the 5th abdominal segment is reached, one or 

 other only existing (if any) on the 3rd and 4th abdominals. On the pro- 

 thorax is a plate, of the same colour (green) as the rest of the larva, with 

 a median suture and a transverse suture or groove, nearer the posterior 

 than the anterior margin. At the end, this curves forward and has a 

 brown pigmented patch, and at its extreme end is a small lenticle, a 

 rather larger one near middle line. The front portion (on each side) 

 carries about 45 hairs, the posterior 20 ; these are very minute, on brown 

 bases, and disposed in several irregular rows ; half-way between the 

 spiracle and leg is another lenticle. The mesothorax appears to have 

 three subsegments, equal to about 3:2:1 in relative widths. There is 

 a lenticle in line with iii, and one near base of proleg, but one or both 

 of these is often absent, even on one side and not the other. The 

 metathorax seems to have three subsegments, or five, if the division 

 of 1st and 3rd into two are included as primary ; the incisions are 

 less marked than the others, but they mark off the hairs into sections. 

 Eeckoning five, they would measure 1:2:1:1:1; the 3rd carries 

 lenticles in line with i. There are a pair side by side in line with 

 iii, and another towards leg. The whole surface is covered with 

 minute hairs (about -14mm. long), colourless, arising from black 

 points (see pi. vii., figs. 2-3). These hairs are remarkably wide 

 at their origins and proceed rapidly to a sharp point, with a slight 

 curve. The basal width suggests that they ought to be four or five 

 times their length. They are in one row on the narrower subsegments, 

 but on the wider are irregularly disposed, but might be regarded as in 

 two to six rows, according to width of subsegment. They are about 

 •15mm. apart in the single rows.. The skin-surface is closely covered 

 with sharp points on stellate bases, the points are less than 0-02mm. 

 apart. The prolegs have nearly complete circles of crochets, there is 

 a gap on the outer posterior aspect of about 30°; in one example, one 

 leg shows some chitinous points across this. The outer side has 14 or 

 15 crochets in single line. These are, apparently, continued round the 

 inner aspect, but are supplemented by a series of about twice their 

 length. These number about a dozen, smaller at each end of the row ; 

 it is not very definite where they end. In one specimen, one proleg has 

 a circle a little more than half the usual diameter, and with only a 

 single row of rather small crochets, though these are rather larger on 

 the inner margin (apparently, a regenerated limb). The anal claspers are 

 horseshoe-shaped, with the opening backwards, the crochets are in 

 double series throughout, but more markedly internally, or more 

 accurately, perhaps, those of the larger series are of greater size on that 

 side of the curve. The anal plate is triangular, about 1mm. across, of 

 the same colour as the rest of larva, except that it has a few brown dots 

 that are not hair-bases, but are of about the same size as they 



