appendix, 253 



Plate LXXI. 



JSeira Bushii. 



Scale. — Irregular striee nearly parallel to the pedi- 

 cle, broken np into separate "notes of exclamation" 

 markings, markings very irregular in size and shape, 

 those nearest the pedicle being one half the length of 

 the scale, decreasing in size to the apex, where they are 

 very small ; an indication of striae radiating from near 

 the pedicle ; appearance due to deep corrugations on 

 the surface of the under membrane, undulations on 

 the external surface of upper membrane, and structure 

 between superposed membranes. 



Plate LXXII. 



BecJda argentea. 



Scale. — Structure similar to that of B. albinos ; 

 markings not quite so distinct ; scale thinner. 



Bechia albinos. 



Scale. — Irregular longitudinal stride, broken up into 

 " notes of exclamation " markings, each marking 

 showing at the end furthest from the pedicle a brilliant 

 nucleus of white light, markings very faint near the 

 pedicle ; appearance due to delicate corrugations on 

 the outer surface of the under membrane and structure 

 between the superposed membranes. 



Plate LXXIII. 



Lepidocyrtus curvicollis^ 



Test Scale. — Irregular striae or corrugations from 

 pedicle to apex, broken up into large well-defined 

 separate " notes of exclamation " markings, markings 



