302 Bulletin American Museum of Natural History. [Vol. XXII, 



our North American var. sitbscricea as it is from the typical fusca 

 of Europe. 



There is, of course, no question as to the closer relationship be- 

 tween the Japanese ant -fauna and that of the adjacent East Asiatic 

 continent. The complexion of the former, however, is altered by the 

 intrusion, mainly, as Forel suggests, in the southern part of the 

 archipelago, of a number of forms with strong Malayan or Indian 

 affinities, in some cases even identical with the species of southern 

 Asia. Such are the following: 



Euponera solitaria, Strum,igenys lewisi, 



Pheidole nodus, Iridomyrmex itoi, 



MoHomorium floricola, Iridomyrmex abbotti, 



Monomorium nipponense , Technomyrmex gibbostis, 



Monomorium triviale, Colobopsis rothneyi, 



V ollenhovia emeryi, Polyrhachis lamellidens. 

 Pristomyrmex japonicus, 



The relationship of the Japanese to the European and North 

 Asiatic ant-faunas is beautifully shown in the following list of identical 

 species : 



Myrmecina graminicola, Lasius fidiginosus, 



Solenopsis jugax, Lasius flavus, 



Cremastogaster sordid ida, Formica rufa, 



Myrmica Icevinodis, Formica sanguine a, 



Myrmica lobicornis, Formica fusca, 



Tetramoritim ccespitum, Camponotus herculeanus, 



Lasius umbratus, Catnponotus marginatus. 

 Lasius niger. 



In the majority of cases the subspecies or varieties which represent 

 these species in Japan are much more closely related to the European 

 types than to the North American subspecies and varieties. 



The following list embraces forms which are known only from 

 Japan, though in many cases ';hese have pronounced affinities with 

 other palearctic species, subspecies and vaauties: 



Sysphincta watasei, Ponera japonica, 



Ectomomyrmex japonica, Myrmecina nipponica, 



Pseudoponera sauteri, Pheidole nodus, 



Br achy ponera solitaria, Pheidole fervida, 



