OF AMERICA NORTH OF MEXICO. 339 



13. L. ATRATA.— Brevis nigra, capite thoraceque pube erecta flava dense vestitis, confertim punctatis, hoc 

 convexo, antrorsum valde angustato, basi constricto, lateribus subangulatis disco subcanaliculato. elytris 

 postice angustatis confertim punctatis, subtilius versus apicem, hoc late truncato. Long. -56. 

 Trigonarthris atrata, Dej. Cat. 



Georgia : very rare. 



14. — L. cHRYSocoMA. — Niger dense aureo-pubescens, thorace cribroso, convexo, antrorsum valde angustato 

 lateribus valde rotundatis, postice modice constricto subcanaliculato, elytris postice angustatis, 

 apice truncatis, rufo-testaceis, margine postice infuscato, confertissime subtiliter rugose punctatis. 

 Long. -6. 



Kirby N. Z. 179 : tab. 5, fig. 2. 



Leptura iridis, Dej. Cat. 



Found in the Northern part of New York, and at Lake Superior on roses and iris 

 The male is narrower than the female, and has longer antenna?. 



E. 



15. L. AURiPiLis. — Nigra dense aureo-pubescens, thorace confertissime punclato, convexo, antrorsum 



modice angustato, lateribus paulo rotundatis, canaliculato, elytris postice angustatis, apice truncatis > 

 rufo-testaceis, confertissime subtiliter punctato rugosis, ano, tibiis tarsisque rufis. Long. "6. 



Santa Fe, New Mexico. This species is very similar to the preceding, but the 

 form of the thorax at once distinguishes it. 



Subelongate, black, densely covered with golden hair, head and thorax densely 

 punctured, the latter scarcely as wide as long, somewhat narrowed in front, slightl}^ 

 constricted behind, d^sc convex finely canaliculate, sides slightly rounded. Elytra 

 one-half wider than the thorax, narrowed behind, where they are slightly divergent 

 and truncate, rufo-testaceous, covered with very fine punctures. Beneath black, 

 covered with golden hair, marrrin of the abdominal segments and anus testaceous. 

 Feet black, tibise and tarsi rufous. 



16. L. TIBIALIS. — Nigra, breviter flavo-pubescens, capite thoraceque confertissime punctatis, hoc convexo 

 antice parum angustato, apice basique constricto, lateribus vix rotuiidato, elytris confertim punctatis, 

 subparallelis, apice paulo dehiscentibus, introrsum oblique leviter truncatis, macula laterali ad medium, 

 altera majore pone medium aplceque nigris, tibiis tarsisque flavis, illis apice fuscis. Long. -IS. 



Lee. in Agass. Exp. 



One specimen. St. Ignace, Lake Superior. 



17. L. QUABRicoLLis. — Elongata, nigra capite thoraceque confertissime punctatis, dense flavo-pilosis, hoc 

 quadrato, convexo, antrorsum non angustato, elytris postice subangustatis, grossius sat dense punctatis. 

 Long. '41. 



Vermont. Professor C. B. Adams. Elongate black, beneath covered with thick 

 yellow pubescence, head and thorax very thickly punctured, almost granulate, the 



86 



