American Caraboidea 169 



tarsi distinctly dilated. Length (cf 9) 14. 4-16.0 mm.; width 7.2- 

 7.6 mm. California (Humboldt Co.). Vancouver Island, — Walker. 



pimelioides Walk. 

 Body smaller and narrower than in the preceding, similar in color and 

 lustre; head nearly two-thirds as wide as the prothorax, somewhat 

 elongate, with moderately prominent eyes; surface with moderate, 

 deep and sparse punctures, intermingled with vermiculate rugu- 

 lae, smoother antero-medially; mandibles nearly similar; antennae 

 almost similar, piceous at apex, the fifth joint with the triangular 

 dense patch smaller, occupying much less than apical half of the 

 narrow sides; prothorax narrower, more cordiform, three-fourths 

 wider than long, widest anteriorly, where the sides are strongly 

 rounded, thence notably converging and nearly straight to the base, 

 the angles more produced and narrower, strongly rounded; sculpture 

 nearly similar but nowhere quite so dense, the surface with numerous 

 erect setae near the refiexed edge; median stria deep, almost entire; 

 scutellum not evenly strigilate; elytra oblong-oval and two-fifths 

 longer than wide, the parallel sides broadly arcuate, the apex obtuse; 

 humeri broadly rounded; sculpture nearly as in the preceding; 

 anterior male tarsi more narrowly dilated than in the preceding. 

 Length (cf) 14.3 mm.; width 6.8 mm. California (Yreka, Hum- 

 boldt Co.), — Levette pustulosus Csy. 



It is but seldom that the above species can be said to be very 

 closely allied among themselves; pustulosus is easily distinguishable 

 from pimelioides by its smaller size, much narrower form, smaller, 

 less transverse, more rectilinearly narrowed prothorax, less dense 

 sculpture of the anterior parts and more prominent eyes. In a 

 similar way tegulatiis and viator are rather closely allied, but the 

 latter can be distinguished at once by its notably smaller head, 

 relatively less broad but more oval elytra and by the nature of the 

 sculpture on the basal slope near the humeri. The above pimelioides 

 answers very well to the short description given by Walker (Nat. 

 in Br. Col., II, p. 312), and the California examples can at least be 

 assumed to be specifically identical. 



The following is a remarkable new form in the luxatus section: 



Callisthenes klamathensis n. sp. — Xarrowly elongate-oval, strongly 

 convex, deep polished black, without trace of metallic lustre; head two- 

 thirds as wide as the prothorax, with rather prominent eyes, the surface 

 with fine and remote punctures, intermingled with fine and sparse 

 vermiform scratches, broadly biimpressed anteriorly, the excavations 

 at the sides of the epistoma large and very deep; mandibles moderate, 

 arcuate externally, with moderate sculpture of the usual character; 

 antennae slender, somewhat longer than the head and prothorax, the 

 flatter sides of the joints glabrous, narrowly so on the outer joints; pro- 

 thorax only three-fifths wider than long, widest before the middle, the 



