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 im CO]OT.... cece cece cece seve vecccecseeselO 
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 0.7 mm. Manitoba 
(Winnipeg) ...cccocecccecdcccccccccesccccersesecoeseigrolinea 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 punctulate. 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 
mm. Oregon (Portland),—Mr. H. F. Wickham....... oregona 0. sp. 
11— Body moderately slender, shining, dark rufo-piceous, the abdomen 
black, becoming rufescent 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 surface rather more uneven than usual, 
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