WICKHAM: FOSSIL ELATERIDAE OF FLORISSANT. 515 
Florissant, Colo. With it are associated No. 2,737-2,738 M. C. Z., 
(No. 7,971 and 10,952 S. H. Seudder Coll.). Most likely No. 2,7389- 
2,746 M. C. Z. (No. 2,870, 8,345, 8,549, 8,753, 12,766, 8,226, 8,842 
and 11,788 S. H. Scudder Coll.), belong to the same species. There 
are also three additional specimens in my collection. 
While shorter and broader than most recent species of Limonius, 
the essential characters, as shown by the coxal plates (which are 
narrow and but little dilated internally, only moderately prominent 
over the insertion of the thighs), the prosternal sutures, (double, 
little curved), the short prosternal lobe and the blunt scutellum 
correspond very well with this genus. The basal antennal structure 
is similar to what we see in the recent L. crotchit of the western United 
States, but the general aspect is more that of L. nitidulus from the 
same district. 
LIMoNIUS FLORISSANTENSIS, Sp. Nov. 
Plate 5, fig. 5-7. 
‘Form moderately elongate. Head rather finely and extremely 
closely and deeply but regularly punctured. Antennae about reach- 
ing the prothoracic base, faintly serrate. Prothorax approximately 
one seventh broader than long, apex and base subequal, surface quite 
evenly punctate, about as coarsely as the head but more sparsely, 
apex nearly truncate, front angles obtuse, sides regularly arcuate to 
about the middle, which is the broadest part, thence narrowing to 
near the base, hind angles acute, carinate, but hardly divergent. 
Seutellum oblong oval. Elytra about two and two thirds times the 
length of the prothoracic median line, finely, sharply striate, strial 
punctures fine, somewhat elongate, separated by approximately 
their own long diameters, interstitial spaces flat, broad, confusedly 
and sparsely punctate, the punctures of varying sizes, the largest 
distinctly smaller than those of the striae. Underside punctured 
throughout, rather coarsely and closely on the prosternum and flanks, 
more finely on the meso- and metasternal sclerites, the abdomen 
finely punctate except on the last segment and along the sides, where 
the sculpture is coarser. Length, 8.40 mm.; of elytron, 5.50 mm. 
Described from two specimens, one with counterpart. 
Type—In the collection of H. F. Wickham. Wilson Ranch, 
Florissant, Colo. With it are associated another specimen, with 
counterpart, in my own collection; two from Station 14 in the Mu- 
