78 LE CONTE.— FRAGMENTA ENTOMOLOGICA. 



2 HUMERALis. — Niger, tenuiter pubescens ; thorace lateribus, humerisque late fulvis ; illo cellulo mediauo 

 antice carinato, carina ad medium postice bifurcata. Long. -35, lat. -H. 



Habitat ubique. 



Lycus Jiumeralis, Fabr. II. 111. 



Omalisus ohliquus ? Say I. 156. 



thoracicus, Randall, II. 14. 



Elongatus, postice parum dilatatus ; niger tenuiter pubescens. Caput antice 

 profunde canaliculatum, ore obsolete rufo. Antenna subelongata, leviter serrata?, 

 articulo 3'" sequentibus sesqui breviore, reliquis subquadratis, basi parum angustatis. 

 Thorax latitudine paulo brevier, subquadratus, antice vix angustatus, apice leviter 

 rotundato, basi levissime bisinuato, lateribus fere rectis, angulis posticis acutis : disco 

 leviter concavus, obscurus, marginibus late fulvis ; in cellulis 5 divisus, cellulo 

 mediano subrhomboideo, ante medium acute carinato, carina ad medium bifurcata; 

 cellulis basalibus septo transverso extrorsum tendente, raox evanescente notatis. 

 Elytra acute 4-costata, interstitiis biseriatim reticulatis, nonnumquam costula 

 abbreviata obsoleta divisis ; nigra, macula magna humerali fulva. 



3. oBLiTUS. — Niger, tenuiter pubescens ; thorace latitudine sesqui breviore, margine tenui fulvo ; cellulo 



mediano antice carinato, carina postice bifurcata. Long. -25 — 35 ; lat. -09 — '13. 



Habitat in provinciis mediis; Habitus fere prEecedentis, thoracis forma, antennisque 

 differt. 



Eros ohlitus ? Nm. V. 382. 



Niger, caput antice profunde canaliculatum. Antennae thorace plus duplo 

 loncriores, parum compressse, subserratse, articulo 3'° sequentes sequantc, ultimo 

 iongiore ovali, subacuto. Thorax latitudine sesqui brevier, subquadratus, antice 

 leviter angustatus, apice parum rotundato, lateribus fere rectis, basi fere recte 

 truncate, angulis posticis subacutis ; disco fuscus, margine tenui fulvo ; sicut in 

 prsecedente impressus. Elytra acute 4-costata, interstitiis minus confuse reticulatis^ 

 linea obsoleta basali divisis, 



4. INCESTUS. — Niger, thorace latitudine non breviore, margine tenui fulvo ; cellulo mediano antice carinato 



carina postice bifurcata. Long. '3 ; lat. -ll. 



Habitat in Pennsylvania. 



Prsecedenti simillimus, at thorace angustiore, lateribus sinuatis, angulis posticis 

 acutioribus, antennis longioribus, magis serratis, articulo S'o sequentibus fere sesqui 

 breviore, distinctus. 



5. scuLPTiLis. — Niger, thorace quadrato, antice vix rotundato, lateribus fulvis, cellulo mediano pone 



m-edium angustato, lateribus ante medium parallelis. Long, -26 : lat. •!. 



Habitat in provinciis occidentalibus. 

 Omalisus sculptilis Say, I. 156. 

 Dyctiopterus exaratus, Dej. Cat. 



