SOOLYTID/E— SCOLYTINJE— TOMICINI. 157 



lutely .so luiiiiLTdUs iii t\w li\injj;- Aiuericaii tiiuiia, have intt been found in 

 the Europeuu Tertiaries, tliougli two species (tf Dryoccjetes have lieeii rec(i*r- 

 iiized in the Aniencan rocks. The remaining- group, tlie Hyhn-gini, is found 

 in the Tertiaries uf Imth worlds, l)ut lias more species in Eurojje than in 

 America. 



Tribe TOMICINI. 



A couple of species of Dryocd'tes from Green River are the only fossils 

 of this tribe known, whether in America or Europe, a nmnber exceeding-lv 

 sraall in comparison with its present development in America. 



DIIYOCCETES Eichhorn. 



A genus of small beetles, less than two dozen in number, of which 

 about three are North Anierican, and one South American. It has been 

 found fossil only at Green River, Wyoming, whence two species are known. 



Table of the species of Dryocmtes. 



ruiic'tuifs lit' elytra arnuiged to some exteut in louHitudiiuil series imprexsus. 



Puuctures of elytra not distinctly serial anywhere carhonnrinx. 



Dryoccetks impressus. 



TifipoiJendron impressus Sciidd.. Bull. U. S. Geol. Geog:r. Surv. Terr., ii, 83 (187fi). 

 DryocaUs impnssus Si:udd., Bull. V. S. Geol. G('0<rr. Surv. Terr., iv, 7t;7-7<»,S (1878); 

 Tert. Ins. N. A., 470, PI. viir, Fig. 28 (1890). 



Although several s);)eciniens of tiiis species were at hand in preparing 

 the original description, not a single one has since been found. 

 Green River, Wyoming. 



Dkvoccetk.s carhoxarics*. 



Bryoca-tes mrlwiKirius Scudd., Bull. U. S. Geol. Geogr. Sui v. Terr., iv, 768 (1878); 

 Tert. Ins. N. A., 470-471, I'l. viii. Fig. 6 (1890). 



This species has not liecn found since the original specimen was 

 obtained. 



Green River, Wyoming. 



