230 



STUDIES IN AUSTRALIAN NEUKOPTERA, ill., 



its general accuracy. Petersen, liowever, has recently stated to 

 me (in litt.) his conviction that the venation of the Chrysojndcf 

 is "the most abnormal of all the families" — a statement which 

 certainl}' implies a strong suspicion that this venation is not quite 

 as simple as the accepted scheme would make it appear to he. 



Text-fig.4. — Wings of C/t /•//■■^o^xt su/nnta Walk.; imagi), ( x 9), with the 

 generally accepted notation: cui-cii^, the three "cubital cells'" of 

 Banks; dr, "divisoiy veinlet" of Bank.s; </, inner, and //' outer 

 series of gi'adate veins; jit, pterostignia. Other letters as usual in 

 the Comstock-Needhani notation. 



The most striking feature of the Chrysopid wing, if we accept 

 the usual notation (Text-fig.4) is the fact that it is divided longi- 

 tudinally b}' a remarkably strong, straight, median vein (M), 

 terminating on the posterior border, below the le\el of the ptero- 

 stigma, some distance before the apex. In the hindwing, this 

 vein leaves the radius (R) close to the base, and runs absolutely 

 straight through the wing. In the forewing, however, it shows 

 a slight kink not far f i-om its origin, at a point where an oblique 

 cross-vein descends ti^ Cn. The curved portion of the vein M 



