380 Goleopterologieo/l Notices, VII. 



suture not beaded toward base ; each elytron with a setigerous 

 puncture at basal ^ and inner 4. Legs long, the four anterior 

 femora rather strongly, the two posterior a little less strongly but 

 more abruptly and apically clavate. Length 1.4-1.5 mm. ; width 

 0.55-0.6 mm. 



New York, Pennsylvania, Tennessee, Illinois and Iowa. A 

 ver^'' common and rather widely diffused species in swampy places. 

 The above description applies to the male, but the female differs 

 only slightly, having the antennae a little shorter but at the same 

 time more slender throughout, with a less elongate and a less 

 conspicuous club. There are no secondary sexual characters on 

 the surface of the abdomen, the latter being black with the last two 

 segments testaceous. The hind coxse are well separated, the pos- 

 terior tarsi filiform, with the first three joints equal, the fourth a 

 little shorter, and the claws rather long, slender and strongly 

 arcuate. 



This species forms an isolated subgenus of Euconnus, distin- 

 guished by the form of the clypeus, glabrous head and elytra, 

 entirely obsolete humeral plica and impression, unbeaded suture, 

 3-jointed antennal club, peculiarities of pronotal sculpture and 

 other characters. 



15. E. liaedillus n. sp. — Strongly ventricose, polished, sabimpunctate, 

 black, elytra very slighter paler and piceous ; legs and antennse pale testaceous^ 

 the club of the latter only slightly dusky ; pubescence as in fatuus. Head 

 orbicular, scarcely as long as wide, semicircularly rounded behind the eyes, 

 which are rather well developed, but anterior and scarcely at all prominent. 

 Antennas very slender, a little longer than the head and prothorax, the club 

 abrupt, parallel and moderately dilated ; second joint slender, as long as the first 

 but narrower, feebly obconic, nearly twice as long as wide, about as long as the 

 next two and much thicker ; three to six equal in width, the seventh but just 

 visibly wider, all smooth and of the same structure, feebly narrowed at base ; 

 third 3^, fourth rather more than }{, fifth 3^, sixth scarcely }{, seventh 3^ 

 longer than wide ; eighth }4, wider, as long as wide, the outer side straight, 

 the inner somewhat augulate ; ninth % wider and % longer than the seventh, 

 subglobular, barely as long as wide ; tenth scarcely wider, % wider than long ; 

 eleventh scarcely thicker than the preceding, not quite as long as the ninth 

 and tenth, gradually, acutely and obliquely pointed at tip. Prothorax not 

 quite as long as wide, only just visibly wider than the head, parallel and 

 broadly rounded at the sides, narrowed a little at base, with subbasal modifi. 

 cations nearly as in fatuus. Elytra inflated, scarcely }{ longer than wide, much 

 more than twice as long as the prothorax and fully % wider, ovoidal, widest 

 before the middle, with the side strongly, evenly arcuate, oblique and straighter 

 behind, the tip subacute ; humeral plica broad and strong, the subhumeral im- 



