122 



MORPHOLOGY, ETC., OP THE MlCl(OPTEUYGID,E, 1., 



somewhat distally flattened scales of Eriocrania (Text-fig. 11, d) 

 on the one hand, and the slightly pointed scales of Sabatinca 

 (Text-fig. 1 1, b) on the other. From this latter form, by a con- 

 siderable shortening, and a further specialisation in the form of 

 the distal portion, we arrive at the form seen in A/icropleryx 

 (Text tig. 11, d) Thus all four genera agree very closely in the 



Text-fig. 10. 



iSuales of Mirrojiii ri/ijiihi ( x Win), n, broad scale from wing of Sabatinca 

 inconyruella Walk.; /», medium width scale, and c, broad scale from 

 wing «>t' Mnesarchcea hainadelpha Meyr. , (cioss-striolation somewhat 

 emphasised in h, hut omitted in c, being too delicate for reproduction). 



form of their broad scales. Further, as this type of scale is very 

 distinct from any other known in either of the Orders Tricho- 

 ptera or Lepidoptera, it is clear that the affinity of these four 

 genera is placed beyond serious doubt by the possession of this 

 character in common. 



Turning next to the genus Mnesarchcea, I have figured both a 

 broad scale (Text-fig. 10, c) and one of medium width (Text-fig. 

 10, b), since both afford comparisons with scales from other 



