HARPALIN^E 147 



always evidently, though not greatly, narrower than the base; 

 apical sinus of the elytra wanting or extremely feeble 7 



Prothorax oblique at the sides posteriorly, much narrower than the elytra, 

 the apex and base equal in width, the elytral sinus rather deep and 

 distinct, its outer limit obtusely subprominent 16 



7 Elytra together almost evenly rounded at apex, the sinus wanting, 

 the prothorax unusually short 8 



Elytra each oblique at apex, the margin either straight or just visibly 

 sinuate, the prothorax less abbreviated, except in maritimus 9 



8 Body oblong, subparallel rather convex, strongly shining in both 

 sexes, the upper surface black, with strong Eeneous lustre, piceous- 

 black beneath, with paler epipleura, the legs obscure testaceous; 

 head rather small, four-sevenths as wide as the prothorax, the eyes 

 moderate, not very convex; antennae slender, obscure, pale basally, 

 nearly half as long as the body; prothorax fully three-fifths wider 

 than long, the sides subevenly and rather strongly arcuate, finely 

 and evenly re flexed, not narrowly deplanate; apex evenly and feebly 

 sinuate, the base transverse, with the angles slightly obtuse through 

 only somewhat blunt, not evidently rounded; surface evenly con- 

 vex, very smooth, with extremely fine stria, the latero-basal regions 

 slightly duller and feebly rugulose, the foveae rounded, distinct 

 though very feeble, somewhat more rugulose; elytra slightly wider 

 than the prothorax, parallel, with only just visibly arcuate sides, 

 which are more arcuate basally and broadly circularly rounded 

 at apex, fully two-fifths longer than wide, the striae extremely fine, 

 feeble, the intervals perfectly flat, the three series distinct, the 

 marginal interval and apex with very fine sparse punctules, generally 

 in single line in the long medial interval of interruption of the line 

 of foveae; abdomen finely, sparsely but distinctly punctulate, the 

 metasternum laterally with some very sparse and excessively fine 

 punctulation; hind tarsi much shorter than the tibiae, as usual in 

 the genus, the first joint unusually long, exceeding the next three 

 combined. Length (of 9 ) 4-5~5-7 mm.; width 1.6-2.2 mm. Colo- 

 rado (Boulder Co. and from an unrecorded locality). Twenty-one 

 examples planipennis Lee. 



Body oblong, smaller, broader in form; coloration and lustre throughout 

 as in the preceding, the upper surface rather more obscurely bronzy; 

 head nearly similar, the eyes somewhat smaller, the antennae stouter, 

 the intermediate joints, on the compressed side, not one-half longer 

 than wide; prothorax similar but still shorter, fully two-thirds 

 wider than long, the parallel sides evenly and still more strongly 

 arcuate and very narrowly explanate along the fine re flexed margin, 

 the stria excessively fine but becoming deep and strongly impressed 

 just behind the centre in the type, the latero-basal regions opaculate 

 and with a few rugulae and fine scattered punctures, the foveae 

 feebler, almost completely obsolete; elytra much shorter, a third 

 longer than wide, only just visibly wider than the prothorax, other- 

 wise nearly as in the preceding throughout, the punctures of the 

 three series minute and feeble but distinct on the smooth ground; 

 abdomen with the sparse punctures very distinct; hind tarsi (9) 



