THE ANNALS 



AND 



MAGAZINE OF NATURAL HISTORY. 



[SEVENTH SERIES.] 

 No. 108. DECEMBER 1906. 



LVIII. — On neio Species of Ulstei'idie and N^otices of others. 

 By G. Lewis, F.L.S. 



I HAVE lately founded several new genera on species included 

 in Ulster by Marseul and other authors, a genus whicii until 

 now has contained nearly 400 species. To these new genera 

 and to Thomson's genus Alhohis I have assigned 122 species, 

 which will, I think, greatly facilitate the study of the group 

 generally. The characters I have employed are chiefly two — 

 the position and form of the antenual fossae and the anterior 

 formation of the mesosternunij and to illustrate thesedifFerences 

 I have given some figures. With a narrow antenual fossa sucli 

 as that of SantaJus and Zahromorphus there is an antenna 

 with a funiculus which widens gradually towards the club, 

 and there are other modifications, though slight, in the 

 funiculus when the fossaj are deep and circular. 



Throughout the family it is a matter of importance, both 

 generically and specifically, whether the mesosternum is 

 anteriorly emarginate, sinuous, truncate, or projecting ; but 

 at the same time there are certain species — viz., Mister Hoiuhi, 

 Sch., and circularise Lew. — that have truncate mesosterna 

 which I have not placed in Atholns because their general 

 form is very different, and it seems to nie better to wait 

 until more cognate species are known, for it is almost certain 

 that they exist, before separating them from Hister. 



This is the twenty-ninth paper of this series. 

 Ann. (Ss Mac/. N. Hist. Ser. 7. Vol. xviii. 30 



