128 NORTH AMERICAN 



spicnous, mucli longer thaiiMide; sides behind the eyes xiarallel and very 

 strongly arcuate ; at a distance behind the eyes equal to the length of tlie 

 latter it is distinctly widest ; sides convergent slightly toward the neck which 

 is almost as broad as the pronotum ; eyes rather small, slightly prominent, 

 in great part visible from above, oval, evenly rounded anteriorly ; inter- 

 ocular surface depressed, flat anteriorly, highly polished, coarsely evenly 

 and rather densely punctate ; punctures round, sub-variolate, almost as 

 wide as the interspaces ; between the antennae there is a large area having 

 only a very few widely scattered punctures, with very feeble punctulations 

 in the interspaces ; antennae very long and slender, one-third longer than 

 the head, basal joint very long, slender, slightly enlarged toward tip, feebly 

 sigmoid and longer than the next four together, second shorter than the 

 third, as long as the fourth, joints eight to eleven decreasing slightly in 

 length and increasing in width, the former about three-fourths longer than 

 wide, strongly narrowed toward base, the latter oval, one-third longer than 

 wide ; maxillary palpi long, second joint slender, longer than the third, 

 strongly arcuate, third conical, rather slender, narrowed toward base, fourth 

 conical, nearly as broad at base as the tip of the third, acute at tip, two-fifths 

 as long as the third ; labial palpi very small and slender, last joint fine and 

 acicular ; under surface iinely and confusedly rugulose, finely rather sparsely 

 and feebly punctulate, slightly swollen along the gular sutures; mandibles 

 very long, tapering and acute. Prothorax distinctly shorter than the head, 

 narrowed scarcely perceptibly from apex to base ; sides evenly and mode- 

 rately arcuate ; apical angles narrowly rounded, basal rather broadly so ; 

 apex and base nearly transversely truncate, extremely narrowly margined ; 

 disk five-sixths as wide as the head, scarcely one-fifth longer than wide, 

 moderately convex, highly polished, finely feebly sparsely and irregularly 

 punctate, more serially so near the broad median impunctate area. Elytra 

 at base as wide as the pronotum, slightly wider than thi; base of the latter ; 

 sides feebly divergent posteriorly and nearly straight ; together broadly 

 roundly and strongly emarginate behind ; disk nearly flat, shining, slightly 

 longer than wide and very slightly longer than the pronotum, coarsely 

 strongly evenly and densely punctate. Abdomen at base as wide as the 

 contiguous elytra ; sides moderately arcuate ; border extremely strong, 

 nearly erect at base, rapidly becoming almost obsolete at the apex of the 

 fifth segment ; surface feebly convex, very moderately shining, finely evenly 

 and rather densely punctate, transversely very minutely and rather strongly 

 strigate. Legs slender ; femora long and slender, strongly compressed, 

 narrow ; first joint of the posterior tarsi as long as the next two together. 

 Prosternum very strongly and acutely carinate posteriorly. Under surface 

 much paler than the upper. 



Mule. — Fifth ventral segment broadly and extremely feebly emarginate 

 behind ; sixth deeply incised at apex, incisure as deep as wide, sides sinuate 

 and arcuate just before the anterior angle which is very acutely rounded, 

 apical angles slightly rounded. 



FciiKile. — Un k now n . 



Length 9.0 mm. 



JtMikinlown, near Pliil;ul('l|tliiii, 1. 



