American Caraboidea 159 



rapidly obtusely ogival at apex, the humeri strongly and rapidly rounded; 

 surface with the punctures of the triplicate series small and well separated, 

 badly defined; intervals bearing the foveas notably convex, smooth, the 

 foveae small, shallow and metallic green, the submarginal green line of 

 asperate punctures distinct. Length (cf) 16.5 mm.; width 7.3 mm. 

 California (Palm Spring). 



The anterior male tarsi are not quite so strongly dilated as in 

 sagax and the three dilated joints together have a more oval outline; 

 the second and third joints are less than twice as wide as long, the 

 inner edge nearly straight, the outer more oblique and arcuate. 

 The close-set row of punctures along the lower edge of the femora 

 is more conspicuous. 



Calosoma praestans n. sp. — Oblong, convex, much larger in size» 

 moderately shining, black, the anterior parts with faint, the elytra with 

 strong, cupreous lustre; under surface and legs deep shining black; 

 head rather large, two-thirds as wide as the prothorax, the eyes abruptly 

 prominent, the surface closely punctato-rugose; epistoma broadly and 

 feebly impressed medially, with the lateral excavations unusually wide; 

 mandibles moderate, evenly arcuate externally; antennae but slightly 

 longer than the thoracic width, the fifth joint pubescent throughout, 

 except in a shining glabrous basal area; prothorax relatively moderate 

 in size, four-fifths wider than long, widest barely before the middle, the 

 sides parallel, subevenly and moderately rounded, the edge sharply 

 reflexed; basal angles well produced, circularly rounded; surface coarsely 

 and densely punctate, more coarsely rugose basally, the foveae distant 

 from the sides and moderately deep, slightly elongate; basal and apical 

 beading unusually thick; elytra parallel and with feebly arcuate sides, 

 oblong, convex, four-sevenths longer than wide, not quite one-half 

 wider than the prothorax, the humeri rapidly and strongly rounded; 

 foveae small, shallow, metallic green, the smooth elevations joining them 

 longitudinally short, distinct; triple intermediate series irregularly and 

 shallowly comminuted, each with a series of asperulate punctures. 

 Length (9) 21.0 mm.; width 8.7 mm. California (Butte Co.). 



This species is very distinct among the others of this section by 

 its larger size, bright cupreous elytra and other characters; the 

 male is not at hand and would probably show some interesting 

 tarsal modifications. 



Transversa Csy., from San Diego, resembles sagax considerably, 

 though having a less highly polished and more shallowly sculptured 

 surface, but the mandibles are rather longer and are much less 

 strongly arcuate externally in the female type of that species than 

 in the male of sagax. Esuriens Csy., also from San Diego, is a 

 smaller, narrower and more parallel species than either sagax or 



