Distribution of the Genus Anomis, Ildbner. 251 



from Abyssinia, involuta from Ceylon, and doyia from Roe- 

 bourne, W. Australia ; but there are distinct differences, and 

 to my mind it is impossihlt? to believe that localities that 

 could not huvo had any connexion with each other for many 

 hundreds of millions of years could possibly contain one and 

 the same species of Noctuid, which is not migratory, and the 

 larva and pupa of which could not have been carried by any 

 commercial agency. 



" The study of the genitalia of Lepidoptera is still in its 

 infancy. It may well be that forms of construction overlap 

 and resemble one another in species far apart in detail and 

 far apart in origin. But this remains to be proved. When 

 one bears in mind cases like those of the genus Tephrosia 

 hiundularia and crepnsculata, in which the genitalia differ, as 

 far as has been discovered, only in the forms of a few names, 

 or in Xylophasia, wiiere tlie three recognized species — mono- 

 gJypha, sublustriSj and lithoxt/lea, — in which the difference 

 appears to lie in tlie number of certain hairs ; or, again, when 

 one remembers the number of spines which cannot be sepa- 

 rated by the eye, but possess well-marked differences in the 

 genitalia, such as the nictitans group of Hydrcecia, and the 

 Acronicta's, tridens and psi, it may well be that further study 

 is necessary to learn the exact bearing of the genitalia upon 

 chissitication. Any way, it does not so far appear to have 

 presented gieater uncertainty than have other lines of 

 examination." {Burroios.) 



General Fades 0/ Anomis and Cosraophila. 



Valves delicate, sometimes weakly armed, margins gene- 

 rally ragged. Coreniata on ninth abdominal segment attached 

 (lor.-:ally to the tegumental ring, and afso to the valves, ex- 

 tremely extensile and voluminous. Juxta ** usually strongly 

 developed. Scaphiuni generally [iresent, tip minutely bilid, 

 generally with tuft ot long hairs ventral on eighth abiiominal 

 segment, connected with strongly developed segmental divi- 

 sions. Anellus strongly arme^l with minute spines. 



Section I. 



Juxta absent. Anellus exposed. 



Anomis exacta, llubner. (PI. IX. fig. 1.) 



Valves narrow, angulated at mid-length, unarmed. 



* Juxta (Pierce), a plate fused to the fropt of the anellus. 



