154 fJ^iy' 



front one highest, vi and three below. There is a well developed anal 

 comb with five large teeth, and in some cases apparently one or two 

 small ones at each end. The general skin surface is very finely 

 spiculated with sharp points, the spiracles are prominent raised rings, 

 faintly tinted brownish. The prolegs are circles of iiine hooks, and 

 the same number occur in the claspers, but are ranged along a semi- 

 circle. 



Nov. 13th. — The eggs laid October 10th have finished hatching ; 

 those laid 15th are hatching, and those of l7th are apparently ready 

 to hatch ; larvae having cleared the egg of all surrounding material. 



Nov. 20th. — Of eggs laid October 20th one is hatched, others 

 mature. 



Nov. 22nd. — Three more of eggs laid October 20th have hatched, 

 of those laid later all are apparently mature, except one of the last 

 lot (October 24th — 25th), where the larva seems to have died when 

 half developed. 



Dec. 26th. — Larvae preserved a few weeks ago in 2nd and 3rd 

 instars, some are preserved to-day in 3rd instar, at 3rd moult, and 

 in 4th instai'. Two or three larvae (not preserved) are a moult or 

 two beyond this, and seem healthy on lupin. 



The larvae are whitish or yellowish-green, if not feeding, laid up 

 for moult, &c., but are a darker, dirty bluish-green when feeding ; 

 some seem darker than others, probably from the food not being so 

 fresh, and getting dark in the alimentary canal. 



On February 4th nearly all the larvae kept in a warm room and 

 fed on lupin had spun up. Some half dozen in a cool room on 

 Asphodelus were only in 5th instar. Placed on lupin, they seemed at 

 first at a loss, but a few hours later had apparently made themselves 

 quite at home and were feeding. 



In the 2nd instar the larva is 2'5 mm. long. Head nearly black, width 

 0"4 m., prothoracic plate dark, not quite black, anal comb blackish, 5 large teeth. 

 Each tubercle has a well-developed scutellum ; 15 hooks to ventral, 14 to anal pro- 

 legs. There is a very large development of tracheal branches in 8th abdominal 

 segment, spreading from spiracle or main trachea to the surface of the whole of the 

 alimentary canal in this segment. In two preserved specimens in which the trachese 

 remain filled with air this appearance is very remarkable, and suggests a great 

 demand for oxygen in some final digestive process occurring here. The skin surface 

 is covered with verj fine points, lying in transverse rows, about 60 to a segment, 

 the rows most distinct, i. e., most easily counted are those at posterior margin of 

 each segment. 



In the 3rd instar the length is, when stretched, 6 — 8 mm. The head is 

 0*6 mm. wide, tinted brownish, with a darker (black ?) mark on either side. The 

 chief difference from previous skins is that each tubercle has the hair base black, 



