C'OLEOPTKUA. 149 



palpi long and slender, third joint nearly as long as the second and as 

 rol)Ust, second bent, fonrth much longer than the third, exactly conical, 

 extremely acute at tip, nearly as wide at base as tip of third, nearly four 

 times as long as wide at base ; antennae nearly as long as the head and 

 prothorax together, first joint slender, as long as the next two together, 

 second thinner, sub-cylindrical, one-half longer than wide, third one-third 

 longer than the second, conical, very slender at base, truncate at tip and 

 very slightly longer than tlie fourth, joints four to seven increasing in width, 

 the former cylindro-conical, one-third longer than wide, the latter as wide as 

 long, joints seven to eleven sub-equal in width, ninth and tenth just visibly 

 wider than long, eleventh slightly shorter than the two preceding together, 

 elongate oval, paler in its distal half, joints from the fifth rather strongly 

 compressed, fifth to tenth truncate at tip, narrowed toward base, having 

 around the edge at tip several long stout setae. Prothorax widest at two- 

 thirds its length from the apex where it is nearly one-third wider than long, 

 sides broadly rounded, more strongly so toward the base ; apex about two- 

 thirds as long as the base, broadly arcuate, the latter transverse in the 

 middle, broadly rounded toward the basal angles which are also rather 

 broadly rounded ; disk without median punctures, having the usual marginal 

 punctures. Elytra at base as \Yide as the pronotum ; sides very feebly diver- 

 gent posteriorly, feebly arcuate ; disk depressed, narrowly impressed along 

 the suture, broadly and triangularly emarginate behind, slightly longer than 

 wide, highly polished ; sutural row of about ten punctures, row at the outer 

 two-thirds exactly parallel to the suture of about nine, mai-ginal row of about 

 eleven punctures, all small but distinct, setigerous. Abdomen decreasing 

 very rapidly in width, first segment about as wide as the contiguous elytra ; 

 border rather strong toward base ; surface broadly convex, rather sparsely 

 finely strongly and asperately punctate, somewhat thickly clothed with long 

 fulvous setae ; punctures of under surface equally dense but much more 

 elongated, appearing like minute canaliculations. Legs very pale, fiavo- 

 testaceous, slightly more dense and rufous toward the ends of the tarsi ; 

 tibiae terminated by four or five very unequal spines ; middle and posterior 

 femora having a few short closely set erect spines along the inner edge at 

 the tips ; posterior tarsi long and very slender, distinctly longer than the 

 femora, first joint as long as the next three together. 



Male. — Sixth ventral segment having a rather feeble oval impression near 

 the tip, which is coarsely and peculiarly roughened, tip slightly prolonged 

 and broadly rounded behind ; seventh segment rather acutely rounded 

 behind. 



Female. — Smaller in size and more slender, abdomen extremely sparsely 

 and finely punctate, ventral segments normal. 



Length 2.8-4.0 mm. 



Jeiikintown, near Philadelphia, 3; Washington, District of Colum- 

 bia, 2. 



Just outside of the upper epipleural edge there is a row of small 

 closely placed non-setigerous punctures. This species probably be- 

 longs immediately after axillaris in Dr. Horn's table of the genus. 



