144 TERTIARY RHYNCHOPHOROUS COLEOPTERA. 
Length, excluding rostrum, 3°9""; rostrum, 1°3""; height of body, 2-2". 
Florissant, Colorado. ‘Three specimens, No. 966, U. 8. Geological 
Survey; Nos. 3022 and 3024, R. D. Lacoe; No. 8623, 8. H. Scudder. 
BALANINUS DUTTONI. 
Pl. vu, Fig. 14. 
dody rather stout. Head short, but broad at base; eyes moderately 
small, subcireular, touching the margin of the prothorax; beak nearly two- 
thirds as long as the body, very slender, arcuate moderately and almost 
equally throughout, but especially in the apical two-thirds; antennze with 
the first and second joints of the funicle of equal length, the whole funicle 
and small elongate oval club together about two-thirds as long as the 
rostrum. Prothorax about half as high again as long, rapidly tapering 
with rounded sides, the surface densely and not very finely punctate, 
appearing in reverse as crowded bead-like lenticles, showing next the base 
a tendency to connect in transverse, more or less irregular ruge. Elytre 
barely twice as long as broad, with deeply and sharply impressed, rather 
coarse striz, having more or less distinct longitudinal punctures scarcely 
widening the striae; interspaces flat or scarcely arched, with distant, very 
faint, minute puncta. Legs pretty long, with stout clavate femora and 
slender tibiz. 
Length, excluding rostrum, 9-9°5""; rostrum, 5:5"; height, 4:5™™; 
breadth of thorax, 5"; of base of elytra, 6™", 
This is the largest of our fossil species. 
Florissant, Colorado. Three specimens, Nos. 7324, 8528, 11263. 
This species is dedicated to Capt. C. EK. Dutton, U. 8. Army, my hon- 
ored colleague on the U. 8. Geological Survey. 
BALANINUS FLEXIROSTRIS. 
2 y Beas, 
Pl. vir, Fig. 9. 
Form moderately stout; the head and prothorax longer in proportion 
to the elytra than in-the other species. Head not short, broad, and large, 
transversely microscopically striate behind the eye; eye very large, trans- 
verse, broad ovate, separated from the front margin of the prothorax. by 
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