Excursion to Bfonmyo, N. Spam. 99 



Explanation of Plates. 



Plate XV. 



Northern slope of Moncayo, showing the "Santuario" and the 

 Pena Negra, at a little above tlie upper limit of the beech-forest. 



Plate XVI. 



Fig. 1. Pi/ropsyche moncmmella, (?, rather over twice the natural size. 



2. „ „ neuration of fore-wing, from camera 



drawing. 



3. „ ,, neuration of hind-wing, ditto. 



4. 5. „ „ ,, ,, fore-wings, from two 



specimens in which a missing vein 

 is partially represented. 



6. ,, ,, neuration of hind-wing in which a 



missing vein is partially repre- 

 sented. 



7. Phalacropterix muscella, fore-wing, for comparison. 



8. „ „ hind-wing „ „ 



9. Ptjropsiiche vwncaunella, newly-hatched larva x 1.3 diam. 



10. „ „ fully-grown larva 6 x rather more 



than 2 diam. 



11. ,, ,, case of 6 x about |. 



12. „ ,, „ X I, pupa-case protruding. 



13. 14. „ „ two cases 9 x about f. 

 15. „ „ (J pupa X. 3. 



IG. ,, „ 6 pupa, abdominal segments 6-10, 



more magnified, to show the 

 mounting of dorsal armature on 

 ridges. 



17. „ „ $pupax3. 



18. J, „ skin cast by 9 larva on changing 



to pupa, from camera sketch. 



