RnvNrniTiihE — rhtnchitin.e. 15 



El'GNAMlTrs DKCKM.SAIIS. 



Eufinampfiis decemsatux Sciidd., Hull. U. S. (k'ol. (Icofir. Surv. Torr., iv, 7fi4-765 

 (187.S); Tcrt. Ins. N. A., -ISL', IM. viii. Fig. Ili (ISiKl). 



'I'lic siiifjle specimen tVuiu wliidi the .s|)ecies \v;is (le.seril)e<l is still tlie 

 <>ni\ (iiie known. 



Green river, Wyoinin<r. S. II. Scndder. 



RHYNCHITES Herbst. 



A numerous o-roup of nearly cosmopolitan distribution, though mui li 

 richer in the northern than in the southern hemisphere. We have more 

 than a dozen species in the United States, occurrinjr mostly in the West, but 

 it is far more abundant in the Old World. Four fossil species have been 

 described from the Eluropeaii Tertiaries, two eacli from Kott and Oeningen, 

 and a single species i.s described beloAv from Florissant. The last does not 

 agree well Avith any of the Kuro])ean fos.sils, but is ])erhaj)s nearest to //. 

 silenus Heer, from Oeningen, which is a much slenderer insect, and the onlv 

 one which approaches ours in the lengtli of the snout. .\s will be seen fTir- 

 ther on, it is quite probable that some of the European forms referred ct 

 Rhynchites will have to l>e placed in the .subfamilv Isotheina\ Accordiii'^- 

 to Lacordaire, X\w, beetles of this genus fretjuent liy preference Howers and 

 the leaves of trees. 



Rhynchites subterr.weus. 



Pi. IV, Fio. \-l. 



The head is smooth, e.xcept for a slight transverse wrinkling, and, 

 with the beak, which is very long, straight, and moderatelv stout, as long 

 as the elytra. The eyes are rath(;r small, circular, situated just next the 

 base of the beak. The anteniue an- inserted just liefore the middle of the 

 beak and are about three-fourths its length, 'i'lieir structure is exceedingly 

 similar to that of our living 1\. h'lcolnr Fabr., the club appearing a.s if made 

 up of four joint.s, of which the la.st three ar6 two or three times broader 

 than those of the .stalk and perhaps half as broad again as long-, with 

 rounded sides, while the basal joint of the club is cuneiform, truncate at 



