50 TERTIARY RHYNCHOPHOROUS COLEOPTERA. 
ENTIMUS Germar. 
This is a South American genus, comprising four or five magnificent 
species, of which the Brazilian diamond beetle is an example. The fossil 
from White river which I referred here many years ago is too fragmentary 
to be so placed with any confidence, but, in default of further specimens to 
revise the reference, I have thought best to leave it here. 
EENTIMUS PRIMORDIALIS. 
Entimus primordialis Seudd., Bull. U.S. Geol. Geogr. Sury. Terr., m1, 84 (1876); in 
Zittel, Handb. d. Paleont., I, ii, 789, Fig. 1011 (1885); Tert. Ins. N. A., 474-475, 
Pl. v, Figs. 109, 109a (1890). 
This species was based on a single specimen found by Mr. W. Denton 
on the White river, Colorado, near the Utah boundary. No additional re- 
mains have been found. 
SYNTOMOSTYLUS (evvropos, GrvA0S) nom. nov. 
This name is proposed to replace Brachystylus of Schénherr (1845), 
since the latter name had been previously employed for a genus of Cara- 
i g 
bidee by Chaudoir (1838). 
The eenus is composed of but a single living species, the Chlorophanus 
5 i S 5 7 
acutus of Say, found in the middle Atlantic states and Kentucky. One 
fossil species is found on the White river and the Roan mountains, western 
Colorado. 
SYNTOMOSTYLUS RUDIS. 
d - NS ¢ 
Pl x ie. 
Representéd only by elytra, which show a slender, strongly convex, 
laterally arcuate form, agreeing fairly well with our Lyntomostylus acutus 
(Say) with asimilar subacuminate tip, but not subsinuous strie. ‘They are 
about three times as long as broad, the striz moderately deep and broad, the 
interspaces convex, the punctures not very deep, large, and circular, in- 
volving more than the stria, but not crowded. 
Length of elytron, 5"; breadth, 1.7". 
Roan mountains, western Colorado, from near the richest shales on 
summit of bluff at head of East Salt creek. One specimen, No. 104, U.S. 
