144 



lli-itisli Di-cxgo}i flics. 



Variation, 



When mature this insect does not appear to be 

 subject to much \ariation. Usually the triani;le of the 

 fore-\\iny;s has a trans\erse nervure, and that of the 

 hind-wings none ; but it may be absent from the fore- 

 wini/s also — sometimes from one winij onl\-. 



U^,^?p ^*5 



-'■W 



Fu;. 30. — NV-MPH UK CoKKl I.IA .v.w.x. 



(X 2.) 



Nymph (Fig-. 30). 

 Body of a general sepia tint, not \er\- hair\', but 

 possessed of some in parts ; broad and somewhat 

 flattened ; length, including anal appendages, 22'5mm. ; 

 greatest breadth Smm. Head somewhat pentagonal in 

 shape; width, in region of e\-es, 6mm., narrower from 

 front to back. Antenn;e se\en-iointcd ; basal two 



