No. 39] 



ODONATA OF CONNECTICUT 



25 



Other fossils are discovered and the work becomes better known. 

 To facilitate a comparison, the following table, accompanied by 

 the necessary figures (Fig. 4), is shown below. The Selysian 

 system is also given. This was the first scheme to be generally 

 adopted for wing-vein nomenclature and was devised by Baron de 

 Selys-Longchamps. It has been replaced in recent years quite 

 generally by the Comstock-Needham system. 



Fig. 4. Wing veins of fossil damselflies. (a) Kennedya mirabilis Till, 

 (b) Tarsophlebiopsis mayi Till, (c) Chrotnagrion conditum a modern 

 species for comparison. 



