DESCRIPTION OF NEW SPECIES 161 



across the base, more declivous antero-laterally, punctures rather coarse, 

 separated by a distance about equal to their diameter, intervals smooth 

 and shining, in the central area obsoletely indentate, not widely indentato- 

 punctate along apex and base, laterally rather widely and densely 

 indentato-rugoso-punctate ; apex slightly narrower than the base. 



Elytra about twice as long as wide ; sides parallel, very feebly arcuate, 

 somewhat wider posteriorly ; apex rather broadly rounded, sutural angles 

 obtusely and narrowly rounded ; punctures rather coarse, separated by a 

 distance two or three times their diameter, surface very finely crinkled. 



Abdomen finely punctate ; fifth segment quite densely so and different 

 in the sexes. 



Legs moderate in length and stoutness. 



Male. Similar in form to the female although slightly narrower. 

 Antennae stouter, second joint globular; third narrowest and obconical, 

 about equal in length to the fourth ; the latter triangular, distinctly wider, 

 equal in width to the sixth or seventh, apex transverse ; fifth slightly longer 

 and subtriangular, broader than the fourth, sixth or seventh, anteriorly 

 prominent; sixth and seventh about as long as wide, subtriangulo- 

 obconical ; eighth rather more triangular and a little longer ; ninth about 

 as long as wide, rather subtriangular and with sides more arcuate; tenth 

 almost as wide as long, widest joint of all but not suddenly so, almost 

 quadrate-triangular in outline; eleventh narrower, about as wide as the 

 ninth, a half longer than wide, tapering gradually in apical half and almost 

 subfusiform. Fifth ventral segment moderately broad at apex, distinctly 

 sinuato-truncate, adjacent surface rather glabrous and impressed, sides of 

 the impression rather more prominent, pubescence longer, somewhat 

 denser and more conspicuous, in part blackish at margins and on the 

 genital segment ; longer tactile hairs rather abundant. 



Female. Scarcely stouter. Antennae moderately slender, second 

 joint slightly less globular; third subtriangular and comparatively narrow; 

 fourth, sixth, seventh and eighth subtriangular, slightly longer than wide ; 

 fifth slightly longer than wide, subtriangular, apex rather oblique and 

 distinctly angulate anteriorly, scarcely as wide as the ninth; ninth and 

 tenth subtriangular, about as long as wide, sides of the tenth moderately 

 arcuate ; eleventh obovate, wider than the tenth, about a half longer than 

 wide. Fifth ventral rather broadly rounded at apex. Pubescence longer, 

 denser and darker about the abdominal apex. 



Measurements. Length (Types), 3.1-3.4 mm.; width, 1.0-1.2 mm. 



Holotype, male, and allotype, female, in my own collection ; paratypes 

 in that of Mr. Chas. Liebeck. 



Type locality. Olympia, Washington State. Eight specimens 

 studied. 



