ae Med 
WICKHAM: NEW MIOCENE COLEOPTERA FROM FLORISSANT, 443 
bluntly pointed, sculpture a distinct but not coarse scabrous punctua- 
tion, vestiture fine. Legs not preserved. Length, 7 mm. 
Described from one specimen. 
Type— No. 2,485 M. C. Z. Florissant, Col. (No. 5,359 5S. H. 
Scudder Coll.). 
Very few of the Florissant fossils are so well preserved as this little 
buprestid. It is a remarkably satisfactory agrilid type and exhibits 
many of the characters used in our tables for the separation of recent 
species of this genus. By comparison with specimens of the common 
living North American Agrilus politus, the fossil is so nearly identical 
as to be separable with difficulty. It is entirely within the bounds of 
possibility that A. praepolitus infested the willows of the ancient lake 
shore. 
LAMPYRIDAE. 
MIOCAENIA, gen. nov. 
Form of Caenia but the pectinations of the antennae are apical in 
origin instead of basal. 
: 
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| Type— M. pectinicornis, sp. nov. 
| 
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MI0cAENIA PECTINICORNIS, sp. nov. 
Plate 5, fig. 1-2. 
_ Body elongate, subparallel. Head small, eyes destroyed. An- 
_tennae two thirds the length of the entire body, the joints external to 
‘the second rather strongly pectinate except the last which is simple. 
| Peaeerax small, not projecting over the head. Elytra long, sculp- 
‘ture obscure. Legs wanting. Length, 6.15 mm. 
Described from one specimen. 
Type.— No. 2,486 M. C. Z. Florissant, Col. (No. 6,994 S. H. 
Seudder Coll.). 
_ Superficially this insect looks very much like Caenia dimidiata of 
bur eastern and northern states, but the structure of the antennae is 
different. The European genus Drilus approaches it in this respect, 
but has a different body form. In the lack of knowledge of a recent 
genus which will acceptably receive the fossil, I have proposed a new 
a 
: 
, 
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