American Caraboidea 165 



rather deep; mandibles finely sculptured, not evenly arcuate ex- 

 ternally as in the preceding, but more arcuate apically; antennae 

 short, the fifth joint almost completely glabrous, the succeeding 

 joints each with triangular pubescent area as usual; prothorax 

 not quite twice as wide as long, widest at the middle, the sides 

 anteriorly broadly rounded, moderately oblique and nearly straight 

 in basal half, the produced angles narrowly rounded; edges sharply 

 and somewhat strongly reflexed, a little more so basally; surface 

 minutely and sparsely punctate, rather coarsely but not densely at 

 sides and base; fine feeble lines are also visible throughout; foveae 

 small and feeble, at base distant from the sides; median stria dis- 

 tinct, entire; elytra very short, barely a fifth longer than wide, two- 

 fifths wider than the prothorax, parallel, with rounded sides and 

 very obtuse apex; tegulae more convex than usual in the striatulus 

 section, the striae not so regular but finely broken and having fine 

 punctures, the tegulae at the sides more convex and less close-set, 

 having the form of coarse contiguous granules apically; tegulae 

 •on the disk rather longer than wide; anterior male, tarsi very nar- 

 rowly dilated; tarsi unusually long, the posterior fully as long as 

 the tibiae. Length (d^) 15.5 mm.; width 7.0 mm. Utah (Stock- 

 ton), — Spalding utensis n. sp. 



Sides of the elytra toward base narrowly, or at least not conspicuously, 

 reflexed, the sculpture nearly as in refiexus, except that the tegulae 

 become distinctly graniform only toward apex 3 



3 — Tegulae generally rather shorter than wide and somewhat flattened. 

 Body stouter, moderately convex, similar in color and lustre; head 

 three-fifths as wide as the prothorax, with well developed convex 

 eyes; surface with sparse vermiculate creases mingled with small 

 punctures, smooth medially toward apex and on the epistoma; 

 mandibles short, feebly sculptured; antennae similar but with 

 the triangular pubescent areas less well defined; prothorax broader, 

 very nearly twice as wide as long, widest but little before the middle, 

 the sides arcuate and moderately reflexed, becoming oblique and 

 straighter posteriorly, the angles well produced and narrowly 

 rounded; surface sculpture somewhat as in the preceding but 

 stronger and more uniformly dense throughout; scutellum larger 

 and more broadly triangular; elytra oblong-oval, the parallel sides 

 more strongly, subevenly arcuate and the apex very obtusely sub- 

 ogival, slightly over a fourth longer than wide, not quite one-half 

 wider than the prothorax; anterior male tarsi rather narrowly 

 dilated. Length (d^) 15.0 mm.; width 7.5 mm. Wyoming. 

 Utah, — LeConte striatulus Lee. 



Tegulae elongate and more convex, each as a rule composed of two 

 tegulae of the size seen in striatulus, the suture between these seg- 

 ments being partially visible at times. Body smaller and narrower, 

 more ventricose, moderately convex, rather strongly shining, deep 

 black; head nearly similar, with small and sparse punctures mingled 

 with some vermiform creases, especially distinct and longitudinal 

 near the eyes, nearly smooth broadly antero-medially ; mandibles 

 rather small and slender, circularly rounded externally, only feebly 



