410 



Explanation of Plates. 



Plate LXXVIT. 



The lower figure (3) shows a curious structure 

 apparently belonging to the skin, which was 

 seen as photographed in the incisions in front 

 of the first seven abdominal segments, in the 

 line of the lateral flange, in a larva of L. 

 pyrenaica which died of some malady. It 

 seems to be a normal structure of Lycaenid 

 larvae, as it can be faintly discerned in some 

 examples of other species ; the peculiarity here 

 is its being rendered so conspicuous in this 

 diseased specimen. Some stain might probably 

 demonstrate it in normal individuals x 100. 



Shows two other specimens of the same struc- 

 tures. 



Plate LXXVIII. Fig. 1. Pupal skin x 6^. 



Fig. 2. Pupal skin. Dorsal head-piece, pro- 

 tliorax, greater part of mesothorax 

 with cover of its spiracle, and an 

 angle of metathorax x 30. In fig. 1 

 the dorsal head-piece is lost on one 

 side. 

 Plate LXXIX. Pupal skin. 



Fig. 1. Head and portions of appendages X 20. 

 Fig. 2. Appendages as in lower portion of fig. 1 

 X 50, showing lenticles on legs but not 

 on antennae or maxillae. 



Plate LXXX. Pupal skin. 



Fig. 1. Right metathorax, with adjacent portion 



of mesothorax and wing x 30. 

 Fig. 2. A portion of wing, shows lines of neura- 

 tion and Povilton's line x 30. 



Plate LXXXI. Upper figure shows ventral aspect of abdominal 

 segments (5th abdominal with 6th, 7th, etc.) 

 X 50. 



Lower figure, which overlaps upper, shows 

 cremastral area (9th and 10th abdominal seg- 

 ments) ; there are ordinary hairs but no 

 hooks ; the specimen is a $ x 50. Compare 

 with Plate XXVII, Trans. 1911, which shows 

 orbilulus to have abundant anchor hooks. 



Plate LXXXII. Pupal skin. Upper figure shows dorsum of 2nd 

 and 3rd abdominal segments x 50. 



Lower figure, spiracular region of 4th abdo- 

 minal segment x 100. 



