148 TERTIARY RHYNCHOPHOROUS COLEOPTERA. 
There can, however, be no doubt of their close relationship to Scypho- 
phorus, the living species of which are parasitic on Yucea. I can not dis- 
cover in literature any indication that Yucca has ever been found fossil 
anywhere.’ Both the species occur at Florissant, and may perhaps be 
regarded as characteristic of the Lacustrine fauna. 
Table of the species of Scyphophorus. 
Thorax broadest beyond the base, half as long as the abdomen. . - - -- - RASS levis 
Thorax broadest at the base, only one-third as long as the abdomen. ....-.-. Fossionis. 
SCYPHUPHORUS LAVIS. 
Pl. a, Fig. -26. 
Head smooth; rostrum as seen from above extending as far in front of 
the head as the length of the head, with no basal enlargement. Thorax 
large, scarcely so broad at base as the elytra, tapering, with rounded sides, 
narrowing from the middle of the basal half and therefore much more coni- 
cal than in living species, the surface rather coarsely, faintly, and distantly 
punctate. Elytra regularly striate, but as if made by a series of confluent 
longitudinal punctures, the reverse showing a faintly broken ridge, the ap- 
pearance of which is exaggerated on the plate; interspaces perfectly smooth 
without trace of punctures. Last (exposed) abdominal segment moderately 
coarsely and closely punctate. 
Length, excluding snout, 11°5™"; of elytra, 55™"; breadth, at base of 
elytra, 5™". 
Florissant, Colorado. One specimen, No. 11779. 
ScYPHOPHORUS FOSSIONIS. 
b y so 
PL. vi, Fig. 13. 
Body long oval, largest in the middle of the elytra. Head apparently 
smooth; rostrum, as seen from above, two-thirds as long as the thorax, not 
only with no basal expansion, but apparently slightly larger apically than 
basally; club of antennze very short, stout oval, the three final joints of the 
funicle subequal, short, subpyriform, together a little longer than the club. 
Thorax not very large, the sides continuing without interruption the forward 
tapering of the body, and tapering, therefore, from the base, the apex half 
' But see Third Annual Report Missouri Botanical Garden, 1892, p. 160. 
