228 The entojiologist's record. 



larvae I already had to live beyond their third moult. Their premature 

 decease was very disappointing, still I was able to examine them during 

 the most interesting period of their ontogeny. My notes on the larvae, 

 which I have curtailed as much as possible, are as follows : — 



First Skin. — Head. — Large and rounded, dull black with a few fine 

 whitish hairs on it. Bodij. — Of even thickness, segments distinct, 

 colour black, scutellum yellow, bearing a few small hairs in two 

 patches, legs yellow, anal flap brownish. There is a tall fleshy 

 tubercle or short horn on segt. 12. A double dorsal roAV of tubercles 

 (? trapezoidals) and a well-marked sub-dorsal (? supra-spiracular) row 

 extend from segts. 3 to 18, but the tubercles on the lateral area 

 are not so distinct as the dorsal ones. 



Each of the dorsal (and other large tubercles) bears a small group of 

 five or six hairs, and I fancied that the hairs from the lateral tubercles 

 on segt. 2 were slightly stronger than on the other segments, but as 

 I had been examining this feature in the larvae of the Ltparidae, it 

 may have been due entirely to my imagination ; at any rate, the 

 difference, if any, was very slight. The plan of the tubercles 

 reminded me rather of that I had noticed in the Noctuids, with the 

 addition of some small extra ones without regular arrangement. 

 Hairs arise solely from the tubercles ; they are stiff", short, slightly 

 curved, and quite simple, with the exception of a knobbed or bulbed 

 appearance at the tip. For some days previous to their first moult 

 the oblique stripes were visible through the skin, and the short horn 

 was more noticeable. 



Second Skin. — Head. — Large, rather square than round, division 

 between lobes distinct, colour light yellow with a brown bar down 

 either side. Bodij. — Pale green, scutellum plain with a broad longi- 

 tudinal bar on each side. Horn is larger. The large tubercles, each 

 bearing a group of hairs, have entirely disappeared, and are replaced 

 by very small black ones, which are thickly scattered over the body, 

 giving it a shagreened appearance. Each of these small tubercles 

 bears one short hair with a slightly enlarged tip, which in some cases 

 is notched (suggesting the bifid hairs of Smerinthus). There is a thick 

 black dorsal line, apparently caused by the spreading of the black 

 colour from the bases of the tubercles, and in addition a broad yellow 

 lateral band starts on either side of the head, which is continued back- 

 wards to the end of segt. 4. The oblique stripes are seven in number, 

 no. 7 being the strongest; they slope backwards (/.c, in the opposite 

 direction to those of Smerinthus), and there is also a short stripe 

 down the sides of the horn. The lateral stripes are distinctly coloured, 

 while the oblique ones are caused only by the absence of the small 

 black tubercles from the area of the stripes. On either side of the 

 dorsal line there is what appears at first sight to be a row of large, 

 fiat, dark-coloured tubercles ; closer examination, however, proves 

 them to be only dark spots, caused like the dorsal line by the si)rcad- 

 ing of the colour from the bases of the tubercles. 



Third Skin. — This moult produces but little change in the general 

 appearance. Head. — Not so large proportionally ; bars down the sides 

 narrower. Body. — Scutellum not so plain. Dorsal area is noAV of a 

 creamy colour faintly tinged with green, lateral and ventral surfaces 

 being bright green. Small black tubercles are still thickly sprinkled 

 on the ventral and lateral areas, but they fade away towards the back 



