n 
O 
2 
MYCROPTERYX PURPURELLA. 
Plate C. Figure 17. 
Localities for this species are Lewes, Darenth Wood, 
etc., etc. 
The situations where it is found are woods, among 
birch trees. 
The perfect insect appears in April. 
MICROPTERYX SALOPIELLA. 
Plate C. Figure 18. 
Localities for this species are Shrewsbury in Salop, 
whence the name, Worthing, West Wickham Wood. 
The situations where it is found are woods. 
The perfect insect appears in April. 
It feeds on the birch. 
MICROPTERYX SEMIPURPURELLA. 
Plate C. Figure 19. 
Localities for this species are Lewes. 
The perfect insect appears in April. 
MICROPTERYX UNIMACULELLA. 
Plate C. Figure 20. 
Localities for this species are Scarborough, Lewes, 
Withnall Birch Clough, West Wickham. 
