DESCRIPTIONS OF NEW SPECIES. 153 



oculi distaiites, trans versi, antice emarginati. Antennae 11-articulatse, 

 articulo Imo oblongo, 2ndo crasso, baud breviore, 3-7 parvis, sensim 

 crassioribus, 8vo trapezoideo, longiore et crassiore 9no et lOmo magnis 

 latioribus, crassitie vix brevioribus, llnio ovali majore, ultra medium 

 sinuatiin angustato, tribus ultiniis conjurictis praecedentibus 2-7 vix 

 brevioribns. Palpi maxillares articulo Imo parvo, 2ndo elongato tri- 

 angulari, 3io sensim latiore trapezoideo, 4to ovali oblique truncate, prsece- 

 dentibus conjunctis paulo longiore. Prothorax capite plus duplo latior, 

 transversus, a basi antice angustatus, apice late rotundato, basi subrotun- 

 data et late bisinuata immarginata, lateribus subrotundatis subtiliter 

 marginatis. Scutellum minutum triangulari. Elytra estriata, postice 

 subito oblique attenuata, epipleurse angustae, postice abbreviates. Pro- 

 sternum ante coxas brevissimum, inter coxas lineare ; coxae auticae conicae, 

 angustissime separatae, trochantino nullo. Coxse intermediae metasterno 

 angusto prominulo separatae. Metasternum magnum, episternis triangu- 

 laribus. Coxae posticae planae laminatae, segmento Imo ventrali majores, 

 fere contiguae. Pedes antici mediocres, tibiis femoribus brevioribus, cal- 

 caribus minutis, tarsis tibiis longioribus, paulo dilatatis, articulo 4to 

 bilobato ; intermedii mediocres, tibiis sicut in anticas, tarsis longioribus, 

 articulo Imo sequentes tres aequante, 4to bilobato ; postici elongati, femori- 

 bus compressis, ad elytra extensis, tibiis brevibus triangularibus, femoribus 

 plus duplo brevioribus, calcaribus tibiis longioribus, pectinatis, tarsis ar- 

 ticulo lino femoribus haud breviore, calcaribus tertia parte longiore, 

 sequentibus conjuuctis sesqui longiore, 3io haud lobato, prsecedente sesqui 

 breviore ; 4to 2ndo vix longiore, unguiculis parvis simplicibus. 



Allied to Orchesia, but differs totally in the form of the an- 

 tennae and maxillary palpi. 



449. M. cliivicoi'iiis. Ovalis convexa, nigra nitida, fere impunc- 

 tata, tenuiter griseo-pubescens ; capite, antennarum basi, pedibusque 

 anterioribus testaceis, antennarum clava, abdomine, pedibusque posticis 

 plus minusve fuscis. Long. -09. 



One specimen from Georgia, and one from Illinois. In the 

 former the abdomen is reddish-testaceous, and the feet are uniform 

 in color ; in the latter, the abdomen is dark brown and the hind 

 legs fuscous. 



MACROSIAGON HENTZ. 



450. M. flavipennis. Atra opaca, dense punctulata, capite elongato 

 fortiter punctate, vertice compresso antice concavo apice subemarginato, 

 thorace latitudine vix longiore a basi antrorsum valde angustato, ad 

 basin utrinque late impresso, ante scntellum breviter coruuto, lobo 

 postico apice rotundato ; elytris pallidis, haud dense punctatis, pone 

 basin oblique profunde impressis, apice valde divaricatis, acutissimis ; 

 antennis flavo-testaceis. Long. -34 -40. 



