NORTH AMERICAN COLEOPTERA. 
177 
Kovi!«ion of the g;eiiera and species of AISTHOXOMIRJI 
iiiliabitiiig North America. 
BY WILLIAM G. DIETZ, M. D. 
iSince the publication of “ The Rhynchophora,” (Proc. Anier. 
Philos. Soc. 1876) but few new species belonging to the tribe under 
consideration have been described, while the amount of material ac- 
cumulated in our collections has been considerable. It was my in- 
tention, originally, to confine the following essay to Anthonomus 
proper ; the discovery, however, of new and im})ortant characters, 
as well as a greater appreciation of others heretofore deemed of but 
secondary importance in the classification of genera of this tribe, 
has led me, step by step, to include all the genera and species oc- 
curring within our faunal limits. The Anthonomini of Europe 
have been made the subject of a monogra})h by Desbrochers des 
Loges (Monographic des Balaninidse et Anthonomidie d’Europe et 
de confines Mediterranees, 1867), which has, however, scarcely offered 
a suggestion that might have aided me in the study of our North 
American species. The genus Orchestes was similarly treated by 
Brisout (Monogr. Ann. Fr. 1865). Very recently a paper has been 
published on the species of Anthonomus inhabiting Great Britain ; 
the latter publication I have not seen. 
In taking a general comparative survey of the present tribe of 
Curculionidie, as presented by our own with that of the European 
fauna, one is struck with the few points of close similarity encoun- 
tered. Referring to Anthonomus proper, the European species, as 
far as I am able to judge by the not inconsiderable number repre- 
sented in my collection, present far greater uniformity, structurally 
as well as in general habitus, than our own. In all of them the 
funicle of the antennie consists of seven joints, and species entirely 
clothed with scales do not occur. The European genus Bradybatus 
Germ., in which the claws are connate at base, is not represented in 
our fauna. 
In defining the limits of the tribe, a modification of LeConte’s 
arrangement becomes necessary. Several new genera have been 
included, whose position is somewhat doubtful, and which, with equal 
j)ropriety, might have been placed in some other tribes of the Me- 
TRANS. AM. ENT. SOC. XVIII. 
( 23 ) 
JULY, 1891 . 
