WICKHAM: NEW MIOCENE COLEOPTERA FROM FLORISSANT. 473 
DIABROTICA BOWDITCHIANA, sp. nov. 
Plate 11, fig. 4. 
Form moderately elongate, broader posteriorly. Head, inclusive 
of jaws, about as long as the pronotum but not equalling it in breadth. 
Eyes rather large, rounded, very black and strongly outlined in the 
specimen, the remainder of the head being pale. Antennae slender, 
so far as shown, but only their basal portions are preserved. Prono- 
tum about one and one half times as broad as long, sides weakly 
rounded, apex and base subequal. Elytra a little more than four 
times as long as the pronotum, finely punctate but with no signs of 
striae. Legs wanting. Length, 7 mm. 
Described from one specimen. 
Type— No. 2,600 M. C. Z. Florissant, Col. (No. 3,467 S. H. 
Seudder Coll.). 
The form was evidently not unlike that of the recent D. 12-punctata, 
though probably more slender. What remains of the elytral sculpture 
indicates a type more like that of Trirhabda than of any of the North 
American species of Diabrotica known to me though possibly it may be 
paralleled in some of the numerous South American representatives of 
the latter genus to which I have not access. 'The marmorate appear- 
ance seems due to the mode of preservation and not to the presence of 
any definite pattern. The prothorax is pale like the head. The 
present species is considerably larger than the Florissant fossil D. 
exes. 
It is named for Mr. Frederick C. Bowditch of Brookline, Massa- 
chusetts. 
DIABROTICA UTEANA, Sp. Nov. 
Plate 1%) fig. ‘5. 
Form similar to that of D. bowditchiana but a little more robust. 
Head rather large, antennae shorter and stouter than in most of the 
recent North American species. Pronotum damaged on one side, the 
ther appears to be but slightly arcuate, the base broader then the 
apex. Elytra four and one half times as long as the pronotum, punc- 
‘uation not distinct, but with some signs of striation near the outer 
nargin. Legs wanting. Length, 4.35 mm. 
| Described from a single specimen. 
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