OF MEGALOPTERA. 



251 



Mandibles and antennae equal in both sexes. App. inf. 

 of male clawlike. No pale dots in the wings . . 6. 



6. App. sup. of the male clubbed at the apex. Genitalvalve 

 absent, penis very long. Large forms with dark coloured 

 body and wings. . Neoneuromas, n. g. (Asia). 



App. sup. of the male not clubbed at the apex. Genital- 

 valve well developed, penis short. Mediocre forms with 

 pale yellow body and wings. Between radius and radial- 

 sector four crossveins. Neuromus Ramb. (Asia). 



5. App. inf. clubbed, with a very minute claw at the tip. 

 App. sup. acute, not clubbed at the apex. Body and 

 wings as in Neuromus. Between radius and radialsector 

 three crossveins. Chloronia Banks (America). 



App. inf. clawlike, app. sup. acute or bifurcate, short. 

 Wings elongate, with darker groundcolour and pale 

 spots. Body pale. Protohermes Weele (Asia). 



App. inf. as in Protohermes but app. sup. always bifur- 

 cate. Wings broad at the base, narrowed at the tip, 

 very darkbrown with creamwhite spots. Body black. 



Hermes Gray (Asia). 



Gen. Corydalus Latreille (1802). 



This name has the priority for Corydalis of the same 

 author, the latter being two years younger, 

 The following species are new: 



Corydalus primitivus, nov. spec. 



This new species remembers in form, size, colour and 

 pattern of the wings C. affinis Burm. and cornutus L. The 

 nervature is not so dense as in the former and not so 

 open as in the latter species. Mandibles of the cf mostly 

 short, but when elongated they are nearly straight. The 

 genitalia are rather primitive as the app. sup. are straight, 



Notes from the Leyden Museum, Vol. XXX. 



