5(1 TERTIARY RHYNCUOPUOROUS COLEOPTERA. 



eye, tlie funiculus and clul) together slightly shorter than tlie tliorax; eye 

 circular (represented too large on the plate). Prothorax much higlier than 

 long, truncate at each extremity, with no fimbria?,, the surface punctato- 

 rugose. Elytra not very elongated, well arched posteriorh', with linear 

 scries of rather large circular })i;nctures widely se})arated from each other 

 and represented in the cast ])y rather pronounced lenticles, separated from 

 each other by considerably more than their own diameter over most of the 

 elvtra, but subconiluent, forming ridges (or stria') toward the apex. The 

 hind femora nearly reach the tip of the abdomen. 



Leugtii, including rostrum, 7"™; of head and rostrum, r75"""; of elytra, 

 4-1"""; height of body posteriorly, 2-8°"". 



This species, though not very closely resembling our living 0. rpicae- 

 roidrs Horn, seems to agree with it in all generic features, excepting in the 

 somewhat shorter antenna! sca])e and the completely circular eye; the sec- 

 ond abdominal segment appears, also, to be relatively longer, and when 

 more fully known, it may have to be generically distinguished. 



Florissant, Colorado. One s})ecimen. No. (!.")44. It is possible that 

 another but a poorly preserved specimen, No. 5075, may belong here. 



Tribe PHYLLOBIINI. 



The six fossil species from America referred to this tribe are equally 



divided lietween Phyllobius and 8cythro])US, and being altogether absent at 



Florissant, niav l)e regarded as typical of the (losiute famia. Curiously 



both genera niav be regarded as gerontogeic. The tribe is represented in 



KurojteanTertiaries by Phyllobius and Polydrosus, said liy Burmeister to 



occur in and)er. 



PIT YLLOBI US Sch.inherr. 



This is an Old World type, with numerous species largely confined to 

 the northern hemisphere A single European species lias been found, per- 

 hai)s occurring 1)y accident, in C*anada, and another is credited to Mexico. 

 Very close to this genus, if not belonging to it, are tln-ee fossil species in 

 the Roan nmimtains, White river, and Green river Tertiaries, but none 

 are found at Florissant. Burmeister says he has seen a species of Phyllo- 

 l)ius in amber, but otherwise it has not Ijefore been recognized among the 

 fossils. 



