Plate XXII. 

 (To be bound facing Plate XXII.) 



PUPAL STRUCTURE OF LAMPIDES BCBTICUS. 



Fig. 1. — Spiracular area of 6th abdominal segment of pupa of Lampides 

 boeticus x 150. 



Showing ordinary pupal hairs, with finely and sharply spiculated extremities ; 

 also the crowd of lenticles in postspiracular region; and the network of the ribbing 

 with minute rosettes at branchings. It shows, in addition to the ordinary network 

 (which alone occurs in many pupae), a fainter and minuter reticulation, clearly 

 continnous with the weaker branches of the larger ribbing ; this smaller network 

 is on the same scale as the larval skin-points or reticulation (as found in Lampides 

 boeticus and Celastrina argiolus), and demonstrates that the usual pupal network 

 is a selection of lines from this tine network, the remainder being obsolete ; here 

 the obsolescence is incomplete. 



Fig. 2. — Cover of prothoracic spiracle of pupa of Lampides boeticus x 300. 



Nearly the whole (the ends are just out of the plate) cover of the prothoracic 

 spiracle of pupa. The prothoracic spiracle-cover of all Lycaenid pupae examined are 

 remarkable objects, of which the detailed structure is usually difficult to make out. 

 They are all of similar shape, and present, as in the one in the plate, a dense forest of 

 hairs. In most cases, the impression given is, that these hairs are more or less fused 

 together in some way, so that it is very difficult to make out the nature of a single 

 hair, and the tops are all level, so that, whether fused together or not, they present 

 a level pavement. In this pupa, the hairs seem separate, and some appear in 

 profile in the Plate ; they are upright rods, expanded at top into rather flat open 

 cups. The minute tessellation of the immediately neighbouring pupa-skin is also 

 shown. 



