1855] 361 



LeConie, Annals of the Lyceum of Nat. Hist, of New York, 5, 211. 

 San Diego, California. Except the slight posterior elevation of the fifth inter- 

 stice, there is scarcely any perceptible inequality on the elytra. 



10. H. vagus, elongatus, griseo-reneus, thorace, latitudine vix longiore, 

 postice subangustato, lateribus crenulatis fere recti?, vage grosse punctata, f'oveis 5 

 modice profundis, alterisque duabus basalibus profundis excavato, elytris crenato- 

 striatis, interstitiis striis requalibus, purpureo-variegatis, pedibus testaceis, basi 

 et genubus obscuris. Long. -09 -10. 



LeConte, Ann. Lvc. Nat. Hist. New York, 5, 211. 



Colorado River, California, abundant. The dorsal fovea? of the thorax are 

 smaller and less deep than in the preceding, and the striae of the elytra are 

 finer. There is hardly any distinct inequality to be observed, though the fifth 

 interstice is slightly elevated behind the middle. 



Dr. Zimmermann once wrote me that this species had been found by him in 

 South Carolina. I have never seen any specimens from that locality ; the species 

 next described is somewhat similar, but could hardly be confounded with it. 



11. H. simplex, elongatus, nigro-a?neus, thorace rude, sat dense punctato- 

 latitudine sublongiore, postice vix angustato, lateribus rectis vix crenulatis, 

 dorso 5-foveato, foveisque basalibus duabus profundis, elytris fortiter crenato- 

 Striatis, interstitiis striis asqualibus, pedibus rufo-testaceis. Long. -10. 



One specimen from Louisiana was kindly given me by Mr. Wapler. The 

 thorax is less narrowed behind, more densely punctured, and -less deeply foveate 

 than in H. vagus. 



Ochthebius Leach. 4 



1. 0. p u net i coll is, ellipticus nigro-piceus, thorace grosse punctato lateri- 

 bus valde rotuttdatis, profunde 5-sulcato, sulcis externis dilatatis extrorsum con- 

 cavis, intermediis subsiuuatis, elytris convexia.sculis, crenato-striatis, breviter 

 parce pilosis. Long. -07. 



Le Conte, Ann. Lye. Nat. Hist. New York, 5, 210. 

 Found by me near Tucson, south of Gila River. 



2. O. interruptus, longiusculns, testaceo-asneus, nitidus, transversim 

 subquadrato subtiliter rugose punctato. trilineato, lineis externis interruptis, 

 antice transversim impresso, et utrinque linea extrorsum concava insculpto mar- 

 ginibus depressi3 testaceis, elytris confertim punctato-striatis, interstitiis rugo- 

 sis, pedibus testaceis. Long. -05. 



Le Conte, Ann. Lye. Nat. Hist. New York, 5, 210. 



San Diego, California. The large fovea each side of the thorax appears in 

 some lights to be rather a broad line concave outwards. 



3. O. lineatus, elongatus, capite thoraceque viridi-ameis, hoc transversim 

 subquadrato subtiliter alutaceo, transversim biimpresso, disco subtiliter trilineato, 

 lineaque antica utrinque lateraii extrorsum concava, marginibus depressis testa- 

 ceis, elytris testaceis asneo-micanubus subtilius punctato-striatis ; subius testa- 

 ceus, pedibus pallidioribus. Long. -045. 



Le Conte, Ann. Lye. Nat. Hist. New York, 5, 211. 

 Colorado River, California. 



4. O. c r i b r i c o 1 1 i s , testaceo-a-neus, margine pedibusque testaceis, thorace 

 transverso, grosse punctato, subtilius canaliculate, linea arcuata lateraii impresso, 

 elytris punctato-striatis interstitiis rugulosis. Long. -07. 



Le Conte, Agassiz' Lake Superior, 217. 

 Eagle Harbor, Lake Superior. 



5. O. niti dus, virescenti-niger nitidus, thorace transverso lateribus rOtundatis, 

 marginibus depressis diaphanis testaceis, disco convexo profunde canalicular 

 antice 6-, postice 4-fossato, fossulis externis in marginem impressis, (unde discus 

 lateribus sinuatus et angulis anticis prolongati3 apparet), elytris convexis, punctis 

 maioribus remotis striatis, pedibus rufis. Long. -06. 



Le Conte, Agassiz' Lake Superior, 217. 



