1856.] 17 



Etriis duabus solis inteniis tenuibus distinctis, obsoletissime seriatim punctatis, 

 pectore obscuriore, antennis pedibusque testaceis. Long. -09. 



One specimen, Georgia, which by its more regularly oval form differs from all 

 the rest of this division. 



B. Metasternum hand productum ; (elytra stria suturali profunda.) 



6. 0. b t u s u s , breviter ovalis, convexus, niger nitidus, subtus cum pedibus 

 rufo-piceus, antennarum clava fusca. Long. -07. 



One specimen, San Jose, California. Resembles Phalacrus in its form, but the 

 palpi and tarsi are those of this genus. The prosternum is ciliate with long 

 hairs behind, which projecting over the mesosternum cause the latter to appear 

 sulcate. 



7. 0. api calls, oblongo-ovatus convexus, supra nigro-piceus, ore, thorace 

 ad latera, elytrisque ad latera et postice indeterminate piceo-testaceis ; subtus, 

 pedibus antennisque testaceis. Long. -07. -09. 



Lee. Agassiz' Lake Superior, 222. 

 Phalacrus apicalis Mels. Proc. Acad. Nat. Sc. 2, 102. 



Middle and Southern States and Lake Superior. Varies considerably in size 

 and depth of coloring. 



8. 0. a qua tills, subovalis convexus, supra testaceo-piceus, medio obscuriore, 

 subtus cum antennis pedibusque testaceus. Long. -08. 



San Jose, California, near water. More regularly oval than 0. apicalis, 

 and narrower than 0. obtusus. 



9. 0. nitidus, rotundatus subovatus convexus, rufo-testaceus nitidus, ely- 

 tris Ifevibus stria suturali (sicut in prpecedentibus) impunctata. Long. -04. 



Phalacrus nitidus Mels. Proc. Acad. Nat. Sc. 2, 102. 

 Middle and Southern States, common. 



10. 0. pusillus, supra nigro-piceus, ad latera indeterminate rufo-piceus 

 oblongo-ovatus convexus, nitidus, elytris stria suturali antice punctata, punctis- 

 que seriebus duabus vel tribus utrinque abbreviatis parum distinctis, subtus 

 cum antennis pedibusque testaceus pectore obscuriore. Long. -04. 



Middle and Southern States. Narrower than 0. nitidus, and very easily 

 distinguished by the two or three rows of punctures reaching near the base or 

 tip. 



LiTOCHRUS Er. 



Palpi m'Etrxillares articulo ultimo cylindrico ; tibiae tenues, calcaribus apica- 

 libus conspicuis ; tarsi postici reliquis longiores, articulo primo elongato ; femora 

 hand ciliata. 



L. p u 1 c h e 1 1 u s , oblongo-ovatus convexus, supra piceus nitidus, thoracis 

 elytrorumque lateribus, macula obliqua antica alteraque posteriore maxima, ore 

 antennis pedibus, corporeque subtus la;te rufo-testaceis, elytris striis internis 

 duabus tenuibus postice confluentibus. Long. -06. 



One specimen from Louisiana, liberally given me by Mr. Guex. A very beauti- 

 ful little species. The elytra have only two very fine internal striae, which unite 

 about one fourth from the apex. The anterior spot is oblique, the posterior one 

 is larger and rounded. 



Litochrus brunnipennis, Mann. Bull. Mosc. 1852, 369 ; from Sitkha is ac- 

 cording to a specimen sent me by Baron Chaudoir, a species of Agathidium. 



Phalacrus pallipes, Say, Journ. Acad. Nat. Sc. 4, 90, from Kansas is un- 

 known to me. It is a species of Olibrus, of the first division ; it is described as 

 not quite one tenth of an inch long, black, with the antennae, feet and palpi 

 testaceous. 



2 



