300 THE entomologist's record. 



to the naked eye. The spiracles are orange spots ; around them is a 

 rather darker shade, in a longitudinal band, of yellowish-grey, 

 marked off by the bright yellow lateral flange (which stands up 

 in a distinct roll in this half -fed larva), and a supraspiracular darker 

 line or band ; this band is nearly black, and has very irregular borders. 

 There is also a dorsal black line or band. Between these two dark 

 bands is a broad one of marbled darker and lighter, the hair-bases 

 giving the greater part of the light areas. The segments (abdominal), 

 if divided into three equal portions, would give the two anterior of 

 these as doubtful subsegments, but the posterior one very distinctly 

 so ; this subsegment is distinctly paler over the positions of the black 

 longitudinal bands, but can hardly be said tointerruptthem,buttendsto 

 do so. On the prothoracic segment is a dorsal plate, narrow and transverse, 

 bright yellow just in the middle line (where the other segments are 

 black), and passing into rich deep brown laterally. The spiracle- 

 like tubercles exist dorsally, and in the subspiracular flange, as in the 

 previous skin. The first and last spiracles are very large, the anal 

 plate black- brown ; darker beneath, except the prolegs and their bases 

 fuscous-yellow. The circles of hooks have a gap at their outer 

 (slightly posterior) margin, but look complete at a casual glance, and 

 are very nearly so. Mai/ ;;^/'«//.— Appears quite full-grown, has been 

 feeding well on Stachijs si/lnitica ; 18mm. long ; 4mm. thick. Thickest 

 about 6th or 7th segment, thence tapers rapidly to neck, less so to 

 tail end. There are two large lenticles, one on either side of middle 

 line dorsally on each segment, a little before the middle, and in the 

 subdorsal paler area. This lenticle is on the 3rd subsegment, on the 

 thoracic segment, or on 4th if a doubtful 1st be counted. It is found 

 on 2nd and 3rd thoracic and 1st (but not 2nd), and 3rd to 7th abdominal 

 segments on the left side. On the right side it omits 1st abdominal. 

 On the abdominal segments, it is on 1st (or 2nd) subsegment. 

 Laterally, there is a large lenticle on all the abdominal segments, on 

 flange immediately below spiracle ; the colour is dark, nearly black, 

 but with pale bands due to excess of pale hair-bases ; dorsally it is dark, a 

 broad line or narrow band, next a broad band in which the nearly 

 white hair-bases exceed the dark ground colour by nearly two to one ; 

 the same arrangement for a narrower area, but the hair-bases decidedly 

 yellow ; a broad band with very few white spots ; then a broad 

 spiracular band, whiter above spiracle, yellower below, the upper with 

 a trace of black left, the loAver with less ; the spiracles orange, just 

 within the lower yellower band, and with a little dark marbling about 

 them; the subspiracular band (with lenticle dull brownish) all yellow; 

 below this a darker band , and then a lighter , with very distinct and separate 

 yellow spots at the hair-bases. The head is black, labrum pale, pale 

 plumose hairs give the aspect of agolden wash to front. The 2nd segment 

 (prothorax) is 1-Hmm. across (head,2-7mm.), with dorsal plate yellow in 

 dorsal line and along anterior nuirgin, shading into orange-brown, 

 and black towards outer and posterior margins ; bases of antenn* pale. 

 Ocelli, five close together in a curved row, and a sixth centrally 

 to these. The irregular disposition of lenticles, noticed already, 

 occurs again in an odd lenticle occurring on left side of 2nd abdominal 

 segment, above and in front of spiracle, just within lower dark band ; 

 none in this situation on any other segment. 



This larva always inhabited a sort of loose cocoon, and though this 



