102 TERTIARY lillYNCHOPHOROtJS COLliOPTERA 



PROCAS Stephens. 



Only four or five living s})ecies of this genus are known, peculiar to 

 Europe and the Mediterranean region, one of whidi oocurs also in this coun- 

 try in the Lake Sui)erior region. 



The two species from tlie Rocky mountains, jjlaced here, can not be 

 regarded as properly members of this genus, though they appear to fall very 

 near it. That from western ( 'olorado and Utah lias too slender and ecpial 

 tibiae, and is of too slender a form; tliat from Florissant has too stout a 

 rostrum and too strongly clavate tliighs; wliile in both, the elvtra are too 

 narrow at liase, with relation to the thorax, to pei'init them to be placed liere 

 in any strict sense, and it is (Hjually clear that they do not belong together, 

 and nuist l)e placed hen^ onlv ])rovisioually. 



Tdhli' of flu' .specien of I'rocus. 



Beak slender, limsor tliaii heail ami jirothorax togetbcr vincuUitn^. 



Beak rather stout, shorter tliaii iicad and jjiuthorax together verhfriitiin. 



pROCAS VINCULATUS. 

 PI. XI, Fig. 3. 



Bodv rather slender, elongate oval. Head small, nearly twice as high 

 as long, finely punctate; eyes rather small, circular, well removed from the 

 margin of the protliorax; rostrum a little longer than head and ])rothorax 

 togetlier, slender, genth' arcuate, e([ual throughout. Protliorax twice as 

 high as long, tapering genth', the dorsum arched slightlv, the surface not 

 very denseU' |)unctat(!. Kl\ tra sU'iider and obscure but apparentK* feelih' 

 ])unctat(_)-striate. Legs not stout nor very long, the tibia' shMuhT and 

 straight, not enlargeil at tlie apex. 



Length, excluding rostrum, •{••_»"""; i-ostrum, 0!)"""; elvtra, •_>•:»""": liei<dit 

 of body, 1 -r)""". 



Roan mountains, western Colorado, from tlie richest insect Ijeds at top 

 of blnflfs abov(^ the head watcu's of East Salt creek. ( )ne specimen, Nos. 

 lOas and l()8!l, U. S. Geological Survey. White river, Utah, at the 

 Colorado line, from tlie very highest beds. One specimen, No. 704, U. S. 

 Geological Survey. 



