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WICKHAM: FOSSIL ELATERIDAE OF FLORISSANT. 51 
AGRIOTES NEARCTICUS, sp. nov. 
Plate 4, fig. 6. 
Form elongate. Head minutely but very closely and distinctly 
punctured. Antennae poorly preserved, but what remains of one 
of them indicates that they were short and slender, scarcely serrate. 
Prothorax broken along the side margins, obscuring the shape, punc- 
tuation almost exactly like that of the head, the punctures finely 
mamillate, nearly touching, even on the middle of the disk. Elytra 
relatively rather elongate as compared with their width, striae appar- 
ently very shallow but their rows of punctures are fairly deep and 
strong, each puncture somewhat elongate, those in each series sepa- 
rated by a little more or less than their own long diameters. Inter- 
stitial spaces scarcely perceptibly punctulate, but with marks of a 
fine, moderately short pubescence. Length, from front of head to 
elytral apex, 8.00 mm.; of elytron, 5.50 mm. 
Described from one specimen. 
Type.— No. 2,748 M. C. Z. Florissant, Colo. (No. 6,653 S. H. 
Scudder Coll.). 
While resembling the Florissant fossils, Iimonius florissantensis and 
L. praecursor, this insect is more elongate and more delicately punc- 
tured than the former and differs from the second in the closer punctu- 
ation of thé head and prothorax as well as the almost complete lack of 
it in the elytral interspaces. The coxal plates are not very clearly 
shown, but I think they are correctly exhibited in the drawing. The 
front seems to be higher than the labrum, as indicated by the distinct 
line of demarcation in the fossil, and the slender antennae are like 
those of Agriotes. 
AGRIOTES COMMINUTUS, sp. nov. 
Plate 4, fig. 4, 5. 
Form rather elongate. Head coarsely, closely but not very deeply 
punctured. Eyes and antennae not defined. Prothorax with the 
margins badly broken, so that the exact shape is not discernible, but 
it was evidently only a little wider than long, with a large discal 
dark spot, similar to that of the recent North American A. fucosus, sur- 
face sculpture obscure, the prosternal sutures, which show through, 
