WICKHAM: NEW MIOCENE COLEOPTERA FROM FLORISSANT. 409 
LISTROCHELUS PUERILIS, Sp. NOv. 
Plate 6, fig. 10. 
Form elongate and quite slender. Surface of body weakly sculp- 
tured, the elytra without the strong rows of punctures and costiform 
interspaces characteristic of Diplotaxis, which this insect somewhat 
resembles in outline. Legs long and slender but not sufficiently well 
preserved to show details of the tibial dentation nor the structure of 
the claws. Length, 10.65 mm. 
Described from one specimen. 
Type.— No. 2,570 M. C. Z. Florissant, Col. The original num- 
ber of the S. H. Scudder collection is illegible. 
About all that can be said of the affinities of this insect is that it is a 
lachnosternoid type of small size, the shape reminding one of Lachno- 
sterna longitarsis or of a slender Listrochelus. I think it a little more 
likely to have belonged to the latter genus and have so placed it, 
recognizing that the two genera are frequently almost indistinguish- 
able, even in recent specimens. Listrochelus occurs today in the 
southern and western United States and in Mexico. 
ANOMALA Koeppe. 
Two species apparently belonging to this genus are found in the 
collection. While not very numerously represented in the United 
States at the present day, the genus Anomala is of great extent and 
wide distribution. It is also rather polymorphic. 
ANOMALA EXTERRANEA, Sp. Nov. 
Plate 7,» fig. 3. 
Form moderately elongate. Head strongly and closely punctured 
across the vertex, less so upon the occiput. Clypeus rounding in 
front, moderately punctate. Prothorax nearly twice as broad as long, 
4 little narrower anteriorly, sides broadly arcuate, surface distinctly 
-but sparsely punctate, a well-marked longitudinal median line (possi- 
bly due to a crack). Elytra moderately finely and closely punctate, 
the punctures subseriately arranged, some of the interstitial lines 
faintly costiform. Legs wanting in the type, and too poorly preserved 
