OF AMERICA NORTH OF MEXICO. 331 



A.— 5. 



18. S. AMERICANA. — Elongata, parallela, nigra pubescens, capite thoracique Isete rufis, subtiliter punctatis, 



hoc antrorsum subangustato, lateribus sinuatis, utrinque ad basin impresso, elytris confertim punctatis, 



apice vix truncatis. Long. '5. 

 Stenura americana, Hald. 63. 

 S. fulvicollis, Dej. Cat. 



Georgia and Ohio. Very rare. Drs. LeConte and Schaum. 



19. S. CAPiTATA.— Elongata, parallela, nigra pubescens, capite thoraceque laete rufis, minus subtiliter 

 punctatis, hoc convexo, antrorsum angustato lateribus rotundato, medio versus basin transversim 

 impresso, elytris grossius minus confertim punctatis. Long. '3. 



Leptura capitata, Nm. Ent. 

 Grammoptera capitata, Hald. 65. 



Georgia. Missouri, Michigan. Rare. 



20. S. RUFicoLLis. — Elongata, parallela, nigra pubescens, thorace rufo convexo, antrorsum angustato, 



lateribus rotundato, confertim subtilius punctate, elytris dense minus subtiliter punctatis, apice 



rotundatis, pedibus anticis rufescentibus. Long. •24<. 

 Leptura ruficollis, Say. J. Ac. 3, 421. 

 L. hcematites, Nm. Entom. 

 Grammoptera ruficollis, Hald. 66. 



Massachusetts to Carolina. 



21. S. suBARGENTATA. — Elongata parallela, nigra, pube albida sparsim vestita, capite thoraceque subtiliter 

 confertissime punctatis, hoc longiusculo, antrorsum subangustato, lateribus ante medium rotundatus 

 linea dorsali postica Isevi, elytris minus subtiliter punctatis, apice rotundatis. Long. -27. 



Leptura subargentaia, Kb. N. Z. 184 . ^ 



North side of Lake Superior. 



22. S. CHALYBEA. — Subelougata, parallela, parum pubescens, capite thoraceque dense subtiliter punctatis, 



nigris, hoc quadrato, lateribus parallelis, capite uon latiore, elytris cyaneis, parcius grosse punctatis, 

 apice rotundatis, antennis pedibusque flavis. Long. -18. 

 Pachyta chalybea, Hald. 60. 



Pennsylvania. Rare. Dr. Melsheimer. The sides of the thorax are parallel 

 almost to the apex, where they are suddenly rounded. 



23. S. siMiLis. — Caput nigrum, antennae fuscae, articulo basali flavido ; thorax niger, lanugine aurea obsitus, 

 elytra punctata, nigra, propedes flavidi, meso et metapedes femoribus basi flavidis apice nigris, tibiis 

 tarsisque fuscis. Long. -225. (Nm.) 



Leptura similis, Kb. N. Z. 185. 

 Leptura exigua, Nm. Ent. 



I have not met with this species. 



84 



