AMERICAN COMPONENTS OF THE TENTYRIIN^ 3O3 



Body dark castaneous to black 27 



26 — Form very stout, oblong-suboval, only moderately convex and 



shining; head with strongly converging, broadly arcuate sides 

 before the eyes, the punctures rather coarse and deep but well 

 separated, the middle of the occiput largely impunctate ; pro- 

 thorax nearly four-fifths wider than long, rather strongly, moder- 

 ately sparsely punctured, gradually densely, more coarsely and 

 confluently so broadly toward the sides, the latter broadly arcuate, 

 somewhat abruptly converging and feebly sinuate anteriorly, the 

 apex deeply sinuate, much narrower than the base; scutellum 

 very well developed, strongly transverse, arcuato-truncate ; elytra 

 distinctly less than one-half longer than wide, veiy obtusely ogival 

 at tip, with the usual punctured series, the punctures becoming 

 very coarse and close-set in all series toward the sides, more or 

 less confused near the humeral callus; abdomen sparsely and very 

 unequally punctate, very coarsely toward the sides. Length 7.0- 

 7.4 mm. ; width 3.8-3.3 it^'ti. California (Barstow). 



testaceum n. sp. 



Form moderately stout, polished, much smaller in size ; head with the 

 sides before the eyes less converging and strongly, evenly arcuate, 

 becoming parallel near the eyes, the punctures close-set, moder- 

 ately coarse ; prothorax large, three-fourths wider than long, sub- 

 parallel, the sides evenly and rather strongly arcuate, the apex but 

 little narrower than the base, as wide at the middle as the widest 

 part of the elytra, coarsely, deeply, perforately and rather closely 

 punctured, the punctures very gradually still coarser and longi- 

 tudinally confluent broadly toward the sides; scutellum small, 

 slightly transverse, rounded behind; elytra scarcely one-half 

 longer than wide, with series of strong, close-set punctures, those 

 of the single interstitial series still coarser and very widely sep- 

 arated ; abdomen sparsely but rather strongly punctured. Length 

 6.0 mm. ; width 2.5 mm. Texas (locality unknown). 



ludificans n. sp. 



Form narrowly elongate-suboval, strongly convex, shining; head 

 nearly as in ludificans throughout ; prothorax relatively small, 

 distinctly narrower than the elytra, three-fourths wider than long, 

 subparallel, evenly and distinctly arcuate at the sides, the apex 

 but slightly narrower than the base, the punctures strong, rather 

 sparse, gradually coarse and elongate and then very coarse and 

 confluent toward the sides; scutellum very small, but little wider 

 than long ; elytra more elongate, three-fifths longer than wide, with 

 regular principal and subequal interstitial series of punctures, be- 

 coming very coarse and moderately close-set toward the sides, 

 the interstitial punctures, as usual, rather moi^e widely separated 

 than those of the principal series; abdomen finely, sparsely punc- 

 tured toward the middle. Length 5.6 mm.; width 3.2S mm. 

 Arizona (southern ) piceum Csy. 



27 — Form more parallel, the prothorax about as wide as any part of 



the elytra 28 



