328 LE CONTE.— LONGICOEN COLEOPTERA 



3. S. EMARGiNATA. — Elongata, nigra nitida, parcius pubescens, thorace antrorsum angustato, postice 



impresso, lateribus subangulatis, elytris triangularibus, aurantiacis, dense pubescentibus, punctatisque, 



apice emarginata, late nigra. Long. l-O. 

 Leptura emarginata, Fabr. El. 2, 356. 01. 73, 3, 6, 

 Stenura emarginata, Dej. Cat. : Hd. 62. 



The male has a narrower body, and the last joint of the abdomen is deeply and 

 widely emarginate. 



A.— 2. 



4. S. OBLiTERATA. — Elongata, pubescens, capite rufo, valde canaliculate, fronte, oculorum marginibus, 



maxillis, gulaque nigris, thorace valde punctato, campanulato, subcanaliculato, lateribus subangulatis, 

 elytris confertim punctatis, flavis, maculis utrinque 2 ante medium, altera magna ad medium 

 alteraque ante apicem nigricantibus apice rufa intus emarginata, pedibus rufis genubus posticis, tarsisque 

 nigris. Long. '65. 

 Stenura obliterata, Hald. 62. 



Oregon. Mr. Wilcox. 



5. S. DELETA. — Testacea capite profunde canaliculate, supra nigricante, thorace campanulato, antrorsum 



parum angustato, valde punctato, disco late nigricante, elytris maculis utrinque 3 (anteriore parva) 

 nigricantibus, apice rufa intus emarginata, antennis pectore, genubus posticis, tarsisque nigris. 

 Long. •48. 



Massachusetts. Dr. Zimmerman. 



Testaceous yellow, pubescent. Head deeply channeled, black above with the 

 antennal protuberances pale. Antennae elongate, black, indistinctly annulate. 

 Thorax bell-shaped, a little wider than the head, longer than wide, scarcely narrowed 

 in front, where it is rounded and constricted, base slightly impressed ; disc densely 

 punctured, obsoletely channeled, blackish. The margins broadly testaceous. Elytra 

 at base wider than the thorax, slightly dehiscent at the tip, which is emarginate 

 inwards : they are testaceous, thickly punctured, each marked with a small lateral 

 blackish spot behind the humerus, and two other large ones extending almost to the 

 suture : tip rufous as far as the posterior spot. Beneath testaceous, presternum, 

 pectus, tarsi, and tip of the posterior femora and tibiae black. 



6. S. suBHAMATA. — Elongata, nigra pubescens, capite canaliculato, thorace elongato, campanulato subtilius 



dense punctato, postice profundius impresso, elytris grossius punctatis, macula hamata basali, alteraque 

 elongata pone medium flavis, apice intus emarginata, antennis annulatis, femorum basi, coxisque flavis. 

 Long. -5. 



Hald. 61. 



Leptura subhamata, Rand. B. I. 2, 44. 



Stenura armata ! Hald. 63. 



Leptura interruptal Nm. Entom. 



Massachusetts to Pennsylvania. Rare. 



