102 Trans. Acad. Sci. of St. Louis. 



Processes of the sixth ventral in the male inflexed toward tip; legs and an- 

 tennae darker, piceo-rufous in color 10 



10 — Body smaller and more slender; head but little longer than wide, the 



sides nearly straight and distinctly diverging posteriorly from the 

 moderately small eyes to the basal angles, which are not very broadly 

 rounded; punctures sparse, not very coarse; antennae short and very 

 stout, much shorter than the head and prothorax, slightly enlarged dis- 

 tally, the outer joints wider than long; prothorax about a fifth longer 

 than wide, very slightly narrower than the head, the sides slightly 

 -converging, the punctures moderately coarse and sparse; elytra in the 

 male fully as wide as the head, much wider than the prothorax and very 

 nearly as long, subparallel and a little longer than wide; in the female 

 proportioned almost similarly but relatively more elongate in form; 

 punctures rather small and sparse; abdomen subparallel, not quite as 

 wide as the elytra. Male with a narrow deep subglabrous impression 

 at the middle of the fifth ventral in more than apical half, the apex very 

 feebly sinuato-truncate; sixth with the usual deep parallel excavation 

 with declivous glabrous floor, the apical emargination deep, parallel, 

 circularly rounded at the bottom, the processes forming part of Its 

 sides acute and slightly flexed toward each other; female slightly more 

 slender than the male. Length 5.0 mm.; width 7 mm. Manitoba 



(Winnipeg) nigrolinea n. sp. 



Body larger and rather stouter inform, parallel; head larger but only 

 very slightly enlarged posteriorly, the sides more or less distinctly ar- 

 cuate and the basal angles more broadly rounded; punctures moder- 

 ately coarse and rather close-set; antennae moderately stout, not 

 sensibly enlarged distally; prothorax nearly as in nigrolinea but broader 

 and less elongate, distinctly narrower than the head, strongly, mod- 

 erately sparsely punctured; elytra finely, sparsely, sublinearly punctate 

 in the male, distinctly longer than wide, parallel, slightly wider and a 

 little shorter than the prothorax, not as wide as the head; in the 

 female similar but very slightly more elongate and only just visibly 

 shorter than the prothorax; abdomen parallel, not quite as wide as the 

 elytra, minutely, not closely puuctulate. Male with secondary sexual 

 characters nearly as in the preceding species, the excavation of the 

 sixth ventral not extending quite so far toward the base of the seg- 

 ment; female nearly similar to the male but with the head a little 

 smaller and not wider than the elytra. Length 6.0 mm.; width 0.88 

 ram. Oregon (Portland), — Mr. H. F. Wickham oregona n. sp. 



11 — Body moderattly slender, shining, dark rufo-piceous, the abdomen 



black, becoming rufesceut at tip, the legs ferruginous; antennae dusky; 

 head longer than wide, obviously wider than the elytra in both sexes, 

 very slightly wider toward base, the sides feebly arcuate and the 

 angles broadly rounded, eyes moderate; antennae very stout, slightly 

 enlarged distally; punctures strong, moderately sparse; prothorax very 

 slightly narrower than the head, not quite a fourth longer than wide, 

 the sides only just perceptibly converging, the punctures strong, coarse 

 and somewhat closer than usual; elytra in the male parallel, slightly 

 longer than wide, equal in width to the prothorax and scarcely more 

 than three-fourths as long, the suiface rather more uneven than usual, 



