250 NEW GENERA AND SPECIES 



niliforni in both sexes, never pectinate. Head quadrangular, 

 with more or less developed dent at the sides and dendri- 

 form pattern on the occiput. 



Wings with more than 3 crossveins between the radius 

 and radialsector. Large forms. 



tribus Neuromini, nov. trib. 



Male with only a pair of app. sup. The app. inf. are 

 absent. Antennae mostly pectinate in the male, moniliforin 

 to pectinate in the female. Head triangular, no dent at 

 the sides. Occiput with linguiform pattern. 



Wings with only 3 crossveins between radius and radial- 

 sector. Mediocre to large forms. 



tribus Chauliodini, nov. trib. 



Tribus Neuromini. 

 Key to the genera. 



1. Sides of the head very enlarged, with two dents. 



Platyneuromus, n. g. (America). 



Sides of the head with one, more or less distinct dent. . 2. 



2. Head moreover with a tooth on the occiput, mandibles 

 in the male much larger than in the female, body black 

 or darkbrown. Very large forms. 



Acanthacorydalis Weele (Asia). 



No tooth on the occiput 3. 



3. Dent distinctly developed 4. 



Dent only slightly indicated by an elevated line near 

 the posterior edges of the quadrangular head . . 5. 



4. Male mostly with elongate mandibles and larger anten- 

 nae than in the female. App. inf. clubbed, not clawlike. 

 Large forms with brownish grey wings, punctated with 

 many white dots. Body pale brown. 



Corydalus Latr. (America). 



JNTotes from the Leydeli Museum, "Vol. XXX. 



