156 Transactions. — Zoology. 



and encloses a large spiracle (as on prothorax) ; subventral 

 tubercle becomes ventral. 9, no spiracle ; below the trapezoi- 

 dals is a large elongate tubercle bearing three hairs, below is 

 a small subventral tubercle with one hair. 10, above the anal 

 flap are three hairs, below is a large tubercle with four hairs, 

 and one hair at base of claspers. 



Structure, ventral (under 1 in. objective): At the base of 

 -each thoracic leg, on the segmental area, is a single hair ; on 1 

 and 2 abdominal are hairs which correspond ; 3, 4, 5, 6 have 

 a single hair at the inner side of each of the abdominal feet ; 

 7-10 have hairs which correspond. 



Under 4dn. objective: The hooks of abdominal feet turn 

 outwards, forming a complete margin. The skin of the seg- 

 ments is prickly — i.e., densely covered with minute hairs. 

 The setae, or hairs, of the tubercles are smooth, apparently 

 finely striated. 



All the larvae expired from ill-usage during microscopical 

 examination. My figure was drawn from one specimen, and 

 description taken from another. Subsequently I received 

 another larva from Mr. Howes, which pupated in a frail cocoon 

 amongst moss. 



Pupa. (Fig. B.) 



Colour : Pale-mahogany. 



Length : Exactly i in. 



Shape and structure (under 1 in. objective) : In front of 

 head, above the eyes, is a pointed protuberance ; there are two 

 hairs between the eyes ; the latter are large, dark, and con- 

 spicuous. I am not sure whether there are one or two hairs 

 at base of antennae. The antennae and wing-cases extend to 

 the posterior edge of 5th abdominal segment, and are quite 

 separate from and unattached to either 4 or 5 abdominal seg- 

 ments. 4, 5, 6 abdominal segments are free, the remaining 

 segments fused. Pupa tapers rapidly from 7-10, the posterior 

 extremity being terminated by two dorsal and two ventral 

 angular processes, with no trace of hooks or spines. 



On all the abdominal segments except 1 and the last 

 two there is an anterior transverse dorsal series of snort 

 blunt spines, varying from three rows in middle to one row 

 at extremities of series. These spines extend from spiracle to 

 spiracle, and are terminated at or by a single hair (homologous 

 of the supraspiracular hair). The spiracles are very like 

 those of the larva — small, round, and elevated. Below the 

 spiracle is a minute hair, and posterior to it is another. 

 Abdominal segments 3 to 6 have a second series of spines — 

 a single posterior row, and not so numerous as the anterior 

 series. Among the spines of the anterior series are hairs 

 possibly analogous to the anterior trapezoidals of the larval 



