WICKHAM:. NEW MIOCENE COLEOPTERA FROM FLORISSANT. 471 
No. 2,614 M. C. Z. (No. 3,375 S. H. Scudder Coll.) as representing the 
same species, although the punctuation is less pronounced. 
With some hesitation, I have separated this from L. evanescens on 
account of the much stronger punctuation of the present insect. 
This is particularly noticeable towards the elytral apices since in 
L. evanescens the strial rows are scarcely visible beyond the middle 
while in L. fortior they continue distinct to near the tip. 
CRIOCERIDEA DUBIA Wickham. 
Not uncommon. Represented by good specimens, No. 2,615-2,619 
M. C. Z. (No. 7,977, 9,577, 11,242, 4,458 and 11,737 S. H. Scudder 
Coll.). Poorer examples, No. 2,620-2,623 M. C. Z. (No. 438, 8,644, 
9,110, 11,791 S. H. Scudder Coll.) probably belong here. 
COLASPIS DILUVIALIS, sp. nov. 
Form rather elongate. Head too much damaged to show the shape. 
Antennae incomplete but displaying several of the proximal joints 
which are slender though somewhat thicker than in recent species. 
| Prothorax poorly defined, flanks beneath moderately coarsely and quite 
closely though not very deeply punctured. Meso- and metathorax 
more finely punctate and transversely or obliquely subrugose beneath. 
_Elytra showing only a portion of one side upon which the sculpture is 
‘displayed in the form of nearly regular striae of circular or slightly 
_ transversely elliptical deep punctures, those of the same row separated 
_by spaces usually much less than the diameters of the punctures. The 
‘sculpture is much finer towards the apex, and, on account of poor 
‘preservation, is nearly effaced near the base. Abdomen nearly smooth 
\but showing traces of shallow punctuation. Legs wanting. Length, 
from front of head to abdominal apex, 4.50 mm. 
¥ Described from one specimen. 
\ 
| Type— No. 2,626 M. C. Z. Florissant, Col. (No. 6,872 S. H. 
Seudder Coll.). 
Plate 11, fig. 1. 
| 
| 
| 
| Most likely this insect is not a true Colaspis though it may be re- 
peived in that genus in its broad interpretation. It is more like Rhab- 
