78 Trans. Acad. Sci. of St. Louis. 



thorax about a fifth longer than wide, a little shorter in the female, the 

 sides distinctly converging from the slightly obtuse apical angles to the 

 base and nearly straight, the punctures coarse, very sparse and irregu- 

 larly disposed, the broad median smooth area not defined by series; 

 elytra slightly narrower than the prothorax and half as long in the male, 

 equal to the latter in width and three-fifths as long in the female; the 

 sides slightly diverging posteriorly from the humeri, which are not 

 very broadly rounded; punctures smaller than those of the prothorax 

 and less sparse, disposed in very uneven series, sometimes irregular; 

 abdomen parallel, equal in width to the elytra in both sexes, shining, 

 the punctures fine and not dense. Male with ventrals two to four nar- 

 rowly and very feebly impressed along the middle, the fifth having 

 a broader deep parallel impression bounded by tumid sides and not 

 attaining the base, the apical margin with a feeble shallow rounded 

 sinus, the impression narrowly shining and glabrous along the median 

 line ; sixth ventral broadly, feebly lobed at tip, the lobe with a small 

 shallow rounded sinus at its middle, the surface tumid apically and 

 impressed basally at the middle, the lateral slopes of the tumidity more 

 densely clothed with black pubescence; female with the sixth ventral 

 strongly lobed at apex, the lobe evenly rounded. Length 8.0.-9.6 mm. ; 



width 1.1 mm. Iowa and Missouri brevipenne Lee. 



Body shorter and much stouter, black in color throughout, the legs and 

 antennae dark rufous; head shorter and broader in form, large, much 

 wider than the elytra in both sexes, the eyes nearly similar, the sides 

 behind them shorter, parallel and arcuate, the basal angles very broadly 

 rounded; antennae stout and filiform; gular sutures feebly arcuate, the 

 punctures coarse and less sparse; prothorax slightly longer than wide, 

 slightly narrower than the head, only slightly narrowed from the apical 

 angles, which are broadly rounded, to the basal angles which are also 

 notably rounded, the punctures coarse but much more close- set, the 

 median smooth line much narrower; elytra about three-fifths as long as 

 the prothorax in both sexes and distinctly narrower, the sides more 

 strongly diverging from the more broadly rounded basal angles and 

 very feebly arcuate ; punctures strong and sparse and irregularly dis- 

 posed; abdomen shining, parallel, as wide as the elytra, finely and not 

 very closely punctate. Male with ventrals two to four wholly unmodi- 

 fied, the fifth very feebly impressed along the middle from apex to base, 

 gradually more narrowly to the base, the bottom not glabrous along 

 the median line and the sides not tumid, the apex feebly sinuate along 

 the impression in about median third ; sixth segment almost unmodified, 

 having a rather narrow and very feeble parallel impression along the 

 middle throughout, the apex very broadly, feebly arcuate, the middle 

 third becoming gradually very feebly sinuato-truncate; female with 

 the sixth ventral moderately lobed at tip, the lobe rather narrowly 

 rounded. Length 8.0 mm.; width 1.28 mm. North Carolina (High- 

 lands) carolinae n. sp. 



The second species differs very greatly from brevipenne in 

 in its shorter and broader form, more broadly rounded angles 



