14 TKRTIARY COLKOPTKRA OF NORTH A.MKRICA. 



Antemue nearlv ;is long as the elytra, with the basal three joints larger and 

 more roiindeil than the succeeding; hut the preservation does not permit 

 of noting what joints \vere glabrous. Pronotura subquadrate, broadest in 

 the middle, tapering gently in front, rapidly behind; front margin broadly 

 convex with no median excision, the lateral angles well rounded; posterior 

 border produced somewhat, roundly angnlate, the disk strongly depressed 

 in a longitudinal mesial baud, broadening anteriorly ; lateral margin simple. 

 Klvtra very regularly ovate, nearly twice as broad as the pronotum, 

 broadest a little behind the middle, the stria', apparently to the number of 

 about a dozen on each elytron, similar and slightly impressed, the outer 

 border narrowly margined. 



Length to tip of maxilla', 7 mm.; breadth across elytra, 3 mm.; length 

 of antenna', o."> mm. 



Florissant, Colorado, one specimen. No. l'2()S(i. 



NKOTIIANKS Scndder. 



An extinct genus, founded upon the present species, allied to ( 'arabus. 

 The species was formerly referred by me to < 'ychrus, but evidently belongs 

 to the ( 'arahini. The genus is described in my Tertiary Insects. 



XKOTHA.XKS TKSTKTS. 

 I'l. I. ti-r. 5. 



Ci/r/iriix f,-fsfi-i/f. -Sciul'l.. ]>ull. I'. S. (icol. (icou-r. Surv. Terr.. IV. T^S-TMt (IMs). 

 Neothancs testt UK Sru<M.. 'IVrt. \\\>. N. A.. :>: 1 >5-:>: > ,i;. ]>1. VII. ti's. :;_>. :',!> 



Green River, Wyoming. 



A widespread genus, prolific in species, found in the north temperate 

 regions and in a few south temperate districts. Three of the existing 

 European species have been reported from the Pleistocene of Swil/erland, 

 England, and Poland, and as main' more extinct species from the Pleisto- 

 cene oi Poland. Omboni also figures a species from the marls of Italv. 

 I'.ut excepting that the genus has been recognized in amber, no species but 

 that here described has been noted from the earlier Tertiaries. 



