188 DESCRIPTIONS OF AND OBSERVATIONS ON 



like the head, dark chestnut; a well impressed dot each side, a little 

 before the middle ; an impressed, acute, longitudinal line behind the 

 middle, extending obsoletely to the anterior edge; spines prominent, 

 acute: scutel with a slightly impressed line: elytra blackish, with im- 

 punctured striae ; punctures towards the base somewhat transversely 

 confluent: pectus with the lateral margin slightly concave: tarsi, pe- 

 nultimate joint extended beneath into a lobe, a little dilated and trun- 

 cated. — Length three-tenths of an inch. 



Behind each of the dots of the thorax is an abbreviated, obsolete, 

 impressed, transverse line. The dots of the thorax are more anterior 

 than those of \ht pygmseus, Fabr. 



1 1 Pectus canaliculate on the lateral margin. 



9. E. calceatus. Reddish brown : an elevated line on the front over 

 the base of the antennae. — Inhab. Indiana. 



Body reddish brown, or chestnut, slightly sericeous, and with mi- 

 nute punctures : head blackish, with an obvious, transverse, raised, gla- 

 brous line over the antennae, a little advanced in the middle : antennx 

 chestnut; first joint about as long as the head, somewhat robust, ob- 

 liquely truncated at the end ; second hardly shorter, but less robust 

 than the third, attenuated and arcuated at base, at its junction with the 

 first joint; fourth joint a little shorter than the third; remaining joints 

 gradually a little longer to the tip, subequal : thorax dusky, not ele- 

 vated ; dorsal line hardly perceptible, even at base ; spines prominent, 

 acute: e/?/^ra rather slightly striate ; striae impunctured : 6c?iea/A par- 

 ticularly sericeous : pectus with the lateral groove well marked : tarsi, 

 penultimate joint with a short, rather broad lobe beneath. — Length 

 from one-fifth to three-tenths of an inch. 



10. E. cylindricollis. Black; thorax longitudinally and widely in- 

 dented behind. — Inhab. Indiana. 



Body blackish, a little sericeous, subcylindric, minutely punctured : 

 antennx dark rufous, shorter than the thorax ; first joint cylindrical, 

 hardly arcuated, at base rather abruptly narrowed, at tip obliquely 

 truncated, blackish; second joint obconic, attenuated and arcuated at 

 base ; third longer than the two following ones together ; remaining ones 

 to the last, subequal ; terminal one nearly as long as the third : thorax 



