286 THE KNTO.-\[()LOGISt's EKCOKP. 



because the contrast of the colour of the wool with that of the general 

 surface is nuich that of hlue mould on cheese. J )oi'sally the general 

 tint is a little darker, by minute pur})lish spotting, and there is distinct 

 division into two subsegments on the 4th , 5th and Oth nl)dominal segments; 



5 has, indeed, three subsegments by the further subdivision of the anterior 

 one. These numberings of segments are quite possibly erroneous, as 

 numbering tiiem is extremely difficult, from whichever end of the animal 

 one counts. There appear, however, to be three segments beyond the 

 one called 7, which carries the dense clothing of avooI. These segments 

 are all much smaller than the preceding (7th), and the last is quite 

 narrow, seen dorsally it is slightly forked, each projects ventrally giving 

 a serrate profile. In a mounted specimen the broAvn head presents 

 two black eye spots, and the mouth-parts are a pale area enclosed in a 

 circle with a dark point on either side. The wings are represented by 

 pale rounded areas, surrounded by darker pigments. Curiously there 

 is a similar, though smaller, mark on the 1st abdominal segment. 

 This appears to take the place of a spiracle which is not discoverable 

 on this segment, unless it has a minute opening in centre of this 

 spot. The nervous ganglia are a considerable mass in the thoracic 

 region, a largish globular mass at anterior margin of 1st abdominal 

 segment, a small one in centre of segment, another, less rounded, 

 rather angular, at anterior margin of 2nd abdominal. In each of the 

 8rd, 4th and 5th, a long lozenge-shaped ganglion, giving off two cords 

 at each end, going to the next ganglion, in the 6th a similar one, 

 except that it has an irregular mass at its posterior extremities that, 

 by some constrictions shows itself to be a grouping of two at least, 

 probably three, further ganglia ; none exist on 7 or further back. The 

 7th segment has a small T-shaped chitinous plate, but the chitinous 

 structures of the ovipositor, 8, are too complicated for easy description. 

 Dorsally, the same remark applies, there is a chitinous posterior 

 margin to 7th segment dorsal, and near the anterior dorsal margins of 



6 and 7 are narrow short marks, representing dorsal plates. Except 

 the wool already referred to, and some fine bristles on the ovipositor, 

 no hairs can be detected. 



Pairin<i. — On May 2nd a $ moth was found emerged at 7.80 a.m., 

 and in looking over some cases in another jar I found two cases that 

 appeared to contain emerged females. The female moth comes out, or 

 partially out, of her pupa-case, and so far out of the silken (mica) case 

 as to protrude her head from it, and then retreats. The object of this 

 manoeuvre is to expand the tubular mouth of the silken case, which 

 remains open, and of nearly the same diameter as the opening in the 

 male case, by which the pupa emerges. I placed the newly emerged 

 male with these, when he immediately became very active, and at once 

 commenced to thrust the extremity of his abdomen into the open 

 extremity of the first case he reached. He proceeded to gradually 

 work into the case the whole of his abdomen until, in perhaps two 

 minutes, it was buried right iip to the thorax, so closely as to push 

 forwards the hind wings by tlie margin of the case pressing against 

 their bases. He then became quiescent, maintaining this position for 

 about three minutes, when he somewhat rapidly released himself and 

 tlew off. l^jxamining him whilst in situ in the case, I found I could 

 see the first and second pair of legs, but I could discover no sign of 

 the third pair, which appeared to l)e included with the abdomen in the 



