NEMESTRINID^. 



443 



how deduced Ilermoneura, in ignorance that Westwood had in 1835 (I have been 

 unable to check the reference) ah-eady used Hermoneura. Taking all in all I prefer 

 to retain the old spelling of Xemestrina and to call the family Nemestrinidcf, but 

 probably Hirmoneura is better emended to Hermoneura. Dr A. W. Verrall is of 

 opinion that both Nemestrina and Hirmoneura are so impossible as Greek com- 

 pounds as to be beyond correction. 



Ty'pe of venation of Nemestrinidji. 



Pio. 251. — Hermoneiira obscura ?. 



Longitudinal {or loncj) veins. 

 a Costa {or costal vein), 

 b Mediastinal {or auxiliary) vein, 

 c Subcostal {or \st longitudinal) vein. 

 d Radial {or 2nd longitudinal) vein. 

 e Cubital {or 3rd lonqitudinal) vein. 



e; Upper branchj ^^ ^^^ ^^^^-^^^ ^^^^ 



e- Lower branch J 

 / Discal {or Ath longitudinal) vein. 



f^\ These two veinlets represent the usual first and 



f- j second veinlets fi'om the discal cell. 



f^ rej^resents the usual third veinlet from the discal cell which closes the 

 fourth posterior cell. 

 g Postical {or 5th lonqitudinal) vein. 



h Anal {or 6th longitudinal) vein. 



i Axillary vein. 



k Praef urea = the common stem of the radial and cubital veins. 



Ambient vein = the continuation of the costal vein round the hindmargin of the 

 wing. 



" Diagonal vein " is a name (only used in the N'emcstrinidce) for the 

 apparently continuous vein which extends from the base of the 

 prssfurca to (or near to) the posterior margin of the wing (at g^ in the 

 type-wing), really commencing with the prsefurca and ending at the 

 tip of the upper branch of the postical vein 



Cross {or transverse) veins. 

 w Humeral cross-vein. 

 X Discal {or middle) cross-vein (not always defined in Nemestrinidce, but the point of 



connection between the cubital and discal veins always lying near the end of 



the discal cell). 

 y Lower {or small) cross-vein. 

 2 Anal cross-vein — not existing in the type- wing given, but apparent in Fallenia 



(tig. 252), being really (g-) the lower branch of the postical vein. 



