156 Memoirs on the Coleoptera 



with rather small and very prominent eyes, the surface sparsely punctate, 

 nearly smooth anteriorly, where there is a shallow longitudinal impression 

 at each side, becoming deep on the epistoma; prothorax two-fifths wider 

 than long, widest barely before the middle, with subevenly arcuate sides, 

 similarly sculptured; elytra narrower and more convex, nearly three- 

 fourths longer than wide, three-sevenths wider than the prothorax, 

 oblong-oval, widest near the middle, strongly sculptured in the style of 

 tcedatus as in grcenlandicus, but with only about 16 or 17 striae, which 

 are coarse and irregular, with coarser ridges connecting the moderate 

 fovese. Length 12. 4-14.0 mm.; width 5.7-6.3 mm. New Hampshire 

 (Mt. Washington). Three male examples. 



Differs from grcenlandicus more especially in the slightly smaller 

 size, narrower outline, more convex surface and more transverse pro- 

 thorax — not widest near apical third as in that species but near the 

 middle and with more evenly rounded sides. 



Calosoma Web. 



Of the forms in this genus described hitherto as allied to calida, 

 the type of expansa Csy., is simply an unusually developed male 

 of that species and consequently a synonym. The others are valid, 

 either as species or subspecies; stellata is a subspecies, and I am 

 now inclined to believe that the large New Mexican laticollis should 

 rather be considered a species than a subspecies. The form de- 

 scribed by LeConte under the name lepida I have not seen and can 

 therefore form no useful opinion regarding it. The two following 

 are specifically different from calida however: 



Calosoma comes n. sp. — Smaller, narrower and more parallel than 

 calida, though nearly similar in color, ornamentation and sculpture; 

 head smaller, but slightly over half as wide as the prothorax, finely, 

 sparsely punctate and rugulose, becoming gradually smooth anteriorly; 

 eyes similar; mandibles straighter and narrower; antennae with the 

 fifth joint glabrous, pubescent on the edges, shorter than in calida, the 

 sixth joint but little more than twice as long as wide; prothorax very 

 nearly twice as wide as long, widest at the middle, the sides broadly, 

 moderately reflexed and beaded and very evenly, circularly arcuate 

 throughout, the basal angles moderately produced behind and obtusely 

 rounded; surface nearly similar, the latero-basal impressions more 

 evenly concave; elytra narrower and more elongate, fully one-half 

 longer than wide and subequal in width to the prothorax, the sides 

 parallel and feebly, evenly arcuate, the reflexed edges feebly diaphanous; 

 general sculpture and the metallic foveae as in calida. Length (cf) 

 19.0 mm.; width 7.0 mm. A single male from an unrecorded region in 

 the Northwest Territorv. 



