WICKHAM: NEW MIOCENE COLEOPTERA FROM FLORISSANT. 457 
Hop.iia STRIATIPENNIS, Sp. nov. 
Plate 7, fig. 2. 
Form similar to that of most of the recent North American species. 
Head of moderate size, the clypeus truncate anteriorly and with 
rounded angles as in H. trifasciata. Prothorax much broader than 
long, widest about the middle, narrowing to the apex and less strongly 
to the base, sculpture not definable. Elytra, conjointly, distinctly 
broader than long, the apices subtruncate, disk with rather ill-defined 
longitudinal sublateral striae which do not show punctures. Abdomi- 
nal segments subequal except the last which is longer. Length 9.75 
mm. 
Described from a single specimen. 
Type — No. 2,567 M. C. Z. Florissant, Col. (No. 8,001 S..H. 
Scudder Coll.). 
The form of the head and thorax corresponds very well with our 
modern species of the genus and so does that of the elytra if due allow- 
ance is made for the flattening of the humeral deflexed region. The 
striation is about the same (though better marked in the fossil) as that 
shown by specimens of H. trifasciata var. tristis. Some of the other 
recent species have similar striation. In order to account for the 
abdominal segmentation it is necessary to assume that the sutures of 
the underside show through — a suggestion which is not in the least 
improbable since those of the meso- and metathoracic regions appear 
dimly through the elytra. Unfortunately the legs are entirely 
wanting. 
SERICA ANTEDILUVIANA Wickham. 
Plate 6, fig. 9. 
A beautiful specimen of a small Serica, preserved in dorsal view, 
is contained in this series. It is only a quarter of a millimeter shorter 
than my type of S. antediluviana, which was preserved in side view, 
and agrees with it in all the visible characters. In the Scudder speci- 
men the punctuation is better exhibited and is seen to be of the sub- 
~ Tugose transverse type shown in the recent S. trociformis. The spurs 
of the hind tibiae are long and slender but the limits of the tarsal 
joints, excepting the first, are not clear enough to admit of description. 
I give a figure of this specimen to supplement that of the type. No. 
2,568 M.C. Z. Florissant, Col. (No. 11,797 S. H. Scudder Coll.). 
