286 THE entomologist's record. 



as being seen dorsally. All these longitudinal bands are somewhat 

 irregular and broken up by minute black spots. The subspiracular 

 yellow line is along the upper edge of a marginal flange that 

 is fairly pronounced, and, at the anterior portion of each seg- 

 ment, rises considerably above the level of the spiracles. The 

 lower margin of the flange being almost on the same plane, 

 viewed laterally, as the eye, and carrying a fair share of hairs, 

 masses them so that the ventral area of the larva is not very visible 

 (this efl'ect is more obvious in the less fully fed larvcie). The spiracles 

 are dark fuscous. Seen from beneath the subspiracular area (below 

 the yellow line) is l)lue but with a less bright and more slaty tint than 

 that above. The venter is black ; a number of Avhite markings (most 

 abundant towards the incisions) are arranged so as to form two longi- 

 tudinal bands, one on either side of the middle line. In some 

 specimens, the three blue lines noticed so encroach on the yellow and 

 brown intermediate lines as to leave them hardly entitled to be called 

 bands. The anal plate is l)lue with a small brown spot on its anterior 

 margin, and the bases of the anal prolegs are also blue. In pro- 

 gression, the larva alternately hides and exposes a narrow zone between 

 the segments, the anterior segment sliding backwards over it. This 

 small portion is bounded on each side by rows of minute glistening 

 Avhite points at the bottom of flue sulci. Dorsally, there appear to be 

 only two subsegments, a longer anterior and shorter posterior, but 

 laterally (above the spiracular level), each abdominal segment is sub- 

 divided into four portions, of which the anterior is rather less than a 

 third of the width of the segment, the second rather more than a 

 third and carrying the spiracle, whilst the third and fourth are about 

 equal and make up the remainder of the width of the segment. The 

 thoracic segments also appear to be composed of four subsegments 

 although then- arrangement is not quite identical with those of the 

 abdominal. 



The cocoon is formed of white silk, loose and flossy on the outside, 

 with a more closely woven, egg-shaped, inner structure, the latter about 

 22mm. long and 6mm. wide, evidently plastered inside with a yellow 

 material similar to that in the cocoon of M. iwustria, although some 

 of those under observation appear to have been too weak to secrete the 

 full quantity, and it is somewhat irregularly and unevenly distributed. 

 The tnalt' pupa is dull black in colour about 15mm. in length, and 

 4mm. in wndth. Viewed laterally or dorsally the pupa is of about the 

 same diameter from the 2nd to the 6th abdominals ; anteriorly to the 

 2nd abdominal it narrows, and the prothorax and dorsal head-piece 

 form the front of the pupa, the head being ventral. From the 6th 

 abdominal segment backwards the pupa also narrows, the 7th segment 

 being convex, and, the 8th, tending to be concave, gives the appear- 

 ance of a sudden narrowing at the end of the 7th segment. The 6th 

 and 7th (and to a less extent the 8th) segments being narrower 

 ventrally than dorsally, throws the three terminal segments forwards 

 ventrally. The pupa generally is covered rather densely with fine 

 short brown hairs, more abundant dorsally than ventrally, but abso- 

 lutely wanting on the appendage-covers and the ventral aspect of the 

 three last segments. The anus is marked by two large rounded pro- 

 jections with a deep sulcus between them ; this is placed quite 

 ventrally and beyond it is a large rounded boss (c remaster) covered 



