1880.] 115 



The very young larva is smooth and glossy, of a creamy-whitish colour with a 

 very distinct greenish dorsal vessel showing through the skin ; at the stage more 

 advanced it has deeper colouring and decided brownish stripes, as I learn from 

 Mr. Sang. 



When nearly or quite full-grown the larva measures from seven-eighths to about 

 an inch in length : seen sideway or en profile it tapers very much anteriorly, and 

 very little behind, but when viewed from above on the back it appears to taper only 

 and very abruptly from the front of the third segment to the remarkably small 

 flattened and taper head, the rest of the body being of uniform moderate stoutness 

 though very slightly tapering near the hinder segment ; all the segmental divisions 

 are rather deep, and the subdividing wrinkles are deep on the third and fourth 

 segments, slighter and more numerous on the others, and the skin much dimpled 

 along the sides. It is of a pallid flesh-colour ground, having a deeper dirty flesh- 

 coloured internal vessel sliding to and fro within the third, fourth, and fifth segments; 

 the head is glossy, light brown, the mouth darker brown and ocelli black ; the plate 

 on the second segment is pale brown with rather darker front margin ; the dorsal stripe 

 is pale yellowish flesh-colour very softly defined between two broadish stripes of 

 faint pinkish grey-brown, followed below by another broad stripe of the pallid flesh- 

 coloured ground, and this again by a broad stripe of pinkish grey-brown, through 

 which is visible the tracheal thread of dark grey whereon the black spiracles are 

 situated : the rather rough anal plate is light brown, and a narrow plate also on the 

 front part of the anal segment ; the dusky brown tubercular dots are most minute, 

 they are, as usual with internal feeders, largest on the twelfth segment, and these can 

 just be discerned (with aid of a strong lens), and that each bears a short bristle; 

 the ventral surface is pale flesh-colour, the anterior legs light brown, the whole skin 

 shining. When about to pupate all the stripes disappear and the skin is of a 

 porcelain-white strongly contrasted with the black spiracles. 



The pupa is of a slender figure and measures five-eighths of an inch in length, 

 very uniform in substance throughout, the thorax rather short and convexly rounded, 

 the head sloping forward is prolonged with a slight tendency to a beak though 

 rounded off at the very tip ; the wing-covers short in proportion to the length of 

 body, from the movable segments of the abdomen below them being longer than 

 usual, the last three taper a little and end in a short blunt thorny projection : the 

 colour is light brownish-ochreous with a faintly darker dorsal stripe, the anal pro- 

 jection dark brown and the whole surface very glossy. — William Buckler, 

 Emsworth: September 10th, 1880. 



Bryophila par. — More than twenty years ago I took a pair of a Bryophila at 

 Cambridge, which at the time seemed to me to present decided points of difference 

 from glandifera, but both Mr. F. Bond and the late Mr. G. B. Crotch, who saw 

 them, referred them to that species as a variety, and I submitted to their decision. 

 I have taken one or two at intervals since ; but, last year, having captured ten quite 

 fresh, and observing new points of difference, I sent one to Mr. Barrett, who for- 

 warded it to Prof. Zeller. The latter, at first, returned it as glandifera, var. par, 

 but has since (Mr. Barrett informs me) agreed with him that it constitutes a distinct- 

 species. I will, therefore, now proceed to give, as far as mere description can do it, 

 the main points by which, I think, the two species may be differentiated : 



