Explanation of Plates. 409 



Explanation of Plates LXV-LXXXII. 



Plate LXV. 



Plate LXVI. 



Plate 

 Plate 



LXVII. 

 LXVIII 



Plate LXIX. 



Plate 

 Plate 

 Plate 



LXX. 



LXXI. 



LXXII, 



Plate LXXIII 



Plate 



Plate 



LXXIV. 

 LXXV. 



Plate LXXVI 



Figs. 1 and 2. Larva in 3rd instar before hiberna- 

 tion, enlarged abovit X 10. 

 Fig. 3. Rosette of Androsace villosa x 2. 

 Fig. 4. Rosette of Androsace villosa central leaves 



mined by L. pyrenaica. 

 Fig. 5. Rosette, some leaves mined and central bud 

 undermined and lost; it is not eaten but 

 dries up and easily falls off. 

 Figs. 6, 7, 8. Larva in last instar, enlarged about 

 X 5. 

 Figs. 1 and 2. Larva of Polyommatus eras, from 

 which Rhogas hicolor has emerged (see 

 Trans., 1914, p. 479) x 4. 

 Figs. 3 and 4. Larva of L. 'pyrenaica from which 

 Meloboris crassicornis emerged x 4. 

 Eggshells of L. pyrenaica x 60. 

 Fig. 1. Egg of L. pyrenaica x 60. 

 Fig. 2. Micropyle x 350. 

 Stereoscopic view of two rosettes of Androsace 

 villosa with eggs of L. pyrenaica as laid X 

 about 5. 

 First-stage larva skin x 60. 

 First-stage larva skin X 60. 

 Second instar larva skin x 36. N.B. the clear 

 space on the 2nd abdominal segment is ab- 

 normal. 

 Second instar. Prothoracic plate X 200, and 



last abdominal segments X 100. 

 Last-stage larva skin X 9. 

 Last-stage larva prothoracic plate X 100. Dorsum 

 of 7th and 8th abdominal segments x 50. The 

 dark shades across at top and at middle of 

 photograph mark the segmental incision ; the 

 position occupied by honey-gland in species 

 possessing it is just above the lower of these. 

 There is no indication of it. 

 Fig. 1. Honey-gland region of another speci- 

 men ; the position, did one exist, would 

 be centrally between the two upper 

 spiracles (those of 7th abdominal seg- 

 ment). 

 FiGr 2, A dorsal hair x 100, 



