cri.'ci i,i<»Mi>.i'. — Ai.oniiN.i:. (»9 



three exceptions (of two Licncni), iirc coniincd to Floriss;inl ; indccil, the 

 i)revaleii<-<' of tli(^ subt'aiiiilx ma\' he i-onsidcnMl as oiiu ol tlic cliaractcristii; 

 features nf the l.aeiistrine t'amia, \\>r not only are the s})ecies relatively 

 numerous Iml thcvare exeeptionalK al)mii[aut in individuals; ot flic ( 'uitu- 

 liuiiid.r wliicli liaxc fallen iiiidcr review, about two-lit'rlis of the siieeitiieiis 

 heliiui;- here. The relative predi luiinance of the fnuiK iiia\' li<^ inaile umre 

 eons|)i(iii>usl\- apparent l)v'a statement <>f percentages: The ])ro])ortiiin nt 

 Alu|ihina' \i> other Oiirculioiiidie in the existing North American fainia is 

 in genera about 4i per cent; in species, less than "2 ))er cent; while in the 

 American Tertiary fauna the relative pro]iortion of g('nera is 10 pci- cent 

 and of species not less than 14 per ceiu. Whether any similar prevalence 

 of the subfamily in Kuropean rocks can be discovered is uni-ertain, but I 

 ani Iiieline<l to look upon the nuuierous species ot' Klniichophoi'a ^\•hi(•h 

 have ])een refeiTed to Hipporhinus as belonging here, in which ca.se this 

 could probably be asserted, at least to a certain extent. 



Tithlc (if ihr fini(')(t of Alojiliiiur. 



Pn>tli(irax largest beyond the ba.se, bfiiif^ iiiorc or less tamid. 



Largest forms ot" .subtainils'. I'roilioiiix relatively small, only liall' as wide 



as the elytra at their base; beak dorsally cliannelcd Ctntron. 



Smallest forms of .subfamily. I'rothorax relatively large, not nnich narrower 



than the elytra at their l)as(': beak not channeled Limalopliiix. 



Prothoiax largest at the base, more <>r h'ss taperin.i; licyond. 



Prothorax anii)le, tajiering hiU little, the head aliruptiy smaller and 



short (Icfdloph Kn. 



Prothorax and head together siibeouieal. tajiering regularly from base of 



l>rotliorax, the hea<l lully half as long as thorax Coniiitiin. 



Cf:N1M{()X (wfVrpGn-), gen. nov. 



I am somewhat at a loss just where to place the insect liere <le.scribe(l, 

 re])resented b\- a cou])le of speciuu-ns which a])pear to lielong together 1>ut 

 are preser\'ed in dilferent attitudes, so as to render the determination 

 .somewhat insecm-e. All the characters drawn from the uiuU'r surface of 

 the bo(h- are taken trom the specimen not figiu'ed. The form and size of 

 the rostrum, the jn'olougatiou of the antennal ij'roo\es to its tip, the traus- 

 ver.se eyes narrowed below, the subglobular form of the hea\il\- pitted 



