242 BBITIBH LEPIDOPTERA. 



bouche, et le fil est si fin, qu'il n'est pas etonnant qu'on se soit mepris 

 sur la partie d'oti cette teigne le tire, quand on ignoroit qu'elle est une 

 chenille, et quand on n'a pas eu besoin d'exarniner sur de grandes 

 chenilles, comment toutes les chenilles filent." Of their colour 

 Eeaumur notes that of six larva taken from their cases, five 

 had the body black or blackish-brown, the other (the smallest) very 

 pale brown. Eeaumur adds that he should have suspected this to have 

 been due to a difference of age, had he not at other times found much 

 smaller larvae black in colour, and concludes: "II y en a done de 

 brunes et de noires, a moins que les brunes ne soient celles qui ont 

 change de peau depuis peu. II m'est arrive d'en trouver plusieurs fois 

 de brunes." In our opinion it certainly is largely a matter of age, the 

 young larvae being paler. 



Pupa. — Male : The living male pupa is about one-eighth of an inch 

 in length, stout and stumpy, with very large wing-cases and thorax, 

 and comparatively small abdomen ; a distinct constriction dorsally 

 between the 1st and 2nd abdominal segments ; the wing-cases extend 

 to the end of the 6th abdominal segment, the 2nd pair of legs to the 

 beginning of the 7th, and the 3rd pair of legs to the beginning of the 

 8th. The prothorax is short and small, the mesothorax very large 

 and long, the metathorax larger than any of the abdominal segments 

 but barely more than half the length of the mesothorax. The 

 abdomen tapers from the 2nd to 7th abdominal, 8-10 being fused 

 together. The abdominal segments 2-7 appear to be free dorsally, 

 but the wing-cases appear to be soldered to the ventral sur- 

 face as far down as the 4th abdominal. A large strip of the hind- 

 wings shows behind the forewings as far down as the end of the 3rd 

 abdominal. The anal armature consists of two short stout spines of 

 triangular outline (very similar to those of other Psychid pupae), but 

 are placed dorsally not ventrally, and seem to point outwards in a 

 lateral direction. Hairs are present on the ? dorsal head-piece, and 

 are also present on all segments from the metathorax to the 7th abdo- 

 minal. So far as can be made out they are placed as in the larva and 

 have the same relative size, i, however, is either exceedingly small or 

 absent. Weli-developed anterior rows of dorsal spines are present on 

 abdominal segments 3-8, and point backwards. The skin-surface is 

 smooth and shiny, the abdomen pale brown, the wing-cases whitish 

 (Bacot. June 9th, 1899). Chapman further notes that the dorsal row 

 of spines is bolder than in B. sepium and more regular; the labium short 

 •3mm. (the antennae being 3-5mm.), it terminates in two rounded ends 

 without a definite division (rather merely a hollow) ; maxillae two- 

 thirds length of labium, somewhat triangular ; two dorso-anal spikes. 

 Female: The empty female pupa-case is about 4-7mm. long and barely 

 l-5mm. in width. It tapers to either end, is of a bright red-brown 

 colour, the surface covered with a coat of rather coarse spicules ; the 

 segmental incisions most marked ; the spiracles raised and distinct ; 

 the ridges of spines on dorsal area of abdominal segments 3-7 strongly 

 developed and pointed backwards, placed rather anteriorly on segments ; 

 the thoracic segments, head, and wing-cases very small ; fine hairs 

 are present on abdominal segments, apparently in same situation as in 

 the larvae, the anus smooth, without dorso-anal spikes or recurved 

 hairs (Bacot. June 11th, 1899). Chapman notes the ? pupa as being 

 about 3" 5mm. long ; of the same form as that of B. sepium, narrow in 



