WICKHAM: NEW MIOCENE COLEOPTERA FROM FLORISSANT. 4031 
Antennae apparently 9-jointed, the basal (visible) joint stouter than the 
apparent second, the third, fourth, fifth, and sixth subequal but only 
about half the length of the second. Club 3-jointed, gradually formed. 
It is possible that the true basal joint is concealed in which case each 
of those noted above should be moved up one number in the series. 
Type.— R. striata, sp. nov. 
RHAGODERIDEA STRIATA, Sp. Nov. 
Plate 1, fig. 7-9. 
Form moderately elongate, subparallel. Head of good size, roughly 
punctate, not so wide as the prothorax. Eyes not defined. Antennae 
rather short, reaching only slightly beyond the middle of the prothorax. 
Pronotum with only one side well preserved, but the length is evidently 
much less than the width, base and apex apparently subequal, side 
margin not or scarcely crenulate, a little reflexed, sculpture a rough 
punctuation similar to that of the head. FElytra about three and one 
half times as long as the prothorax, each with something more than 
eight fine but moderately deep punctate striae, the strial punctures 
| of the same row close together. Interspaces apparently transversely 
wrinkled, somewhat cancellate near the elytral margins. Legs want- 
‘ing. Length, 5.60 mm. 
Described from one ee 
| Type— No. 2,444 M. C. Z. Florissant, Col. (No. 7,006 S. H. 
Seudder Coll.). 
_ While this beetle seems to be a colydiid, it disagrees in important 
characters with all the genera known to me. It is not at all surpris- 
‘ing that insects like the Colydiidae become extinct, since they are 
highly specialized forms and are frequently very closely adapted to 
‘some particular habitat. This one is of large size for the family. 
‘At has something the appearance of Rhagodera but is not closely 
allied in any of the visible characters, even the sculpture being differ- 
vent. 
CUCUJIDAE. 
PEDIACUS PERICLITANS Scudder. 
| One specimen, No. 2,445 M. C. Z. (No. 8,135 S. H. Scudder Coll.). 
Iti is like the type figure except that the antennal club is a trifle more 
renounced, 
