154 LE CONTE.— LONGICORN COLEOPTEEA 



Louisiana, in cotton-woods. Schaum and Wapler. Varies with the elytra testaceous, 

 fuscous at the apex and scutellum. 



AMPHIONYCHA |Dej. 



Antennae valde pilosae, articulis 3'° et 4'o elongatis; reliqms tenuioribus, brevioribus. 

 Tarsi lati, unguiculari longiusculo, unguiculis fissis. 

 Palpi breviusculi, articulo ultimo truncato. 

 Frons inflexa. 



The last joint of the tarsi is longer than in the other genera of this group, and the 

 front is inflexed, so as to project above the mouth. 



1. A. FLAMMATA, nigra, pilosa, punctata, capite fulvo postice nigra, thoracis lateribus et elytrorum margine 

 externo fulvo : elytris grosse punctatis. Long. -32. 

 A. marginata Hald. 57. 

 Saperda Jiaramata Newman. Entomologist, 13. 



Southern States. This is commonly considered as Saperda marginata, Fabr. (Ent. 

 Syst. Suppl. 148 : Syst. El. 2, 331,) but it is difficult to imagine how any degree of 

 attrition would remove the hairs, so that the specimen could be described as glabrous. 



STENOSTOLA Muls. 



Antennae vix pilosse, articulis a 3'° gradatim brevioribus. 

 Tarsi lati, unguiculis fissis. 

 Palpi articulo ultimo longiore, ovali, fere acuto. 

 Frons perpendicularis. 



Distinguished from Saperda by the cleft ungues and short front. The penultimate 

 joint of the maxillary palpi is a little shorter than the last joint. Stenostola fuscipes 

 Hald. 56, is a Saperda. 



1. S. PERGRATA, fusca, deuse cinereo-pubescens, thorace parce-punctato lateribus subrotundato, callis utrinque 



duobus rotundis ad medium oblique sitis nigris, elytris apice rotundatis, punctatis, vitta lata obsoleta, 

 epipleuris, pedibusque testaceis, tarsis fuscis, sutura tota albescente, antennis nigris, cinereo-annulatis. 

 Long. -85 — -45. 

 Saperda pergrata Say. J. Ac. 3, 407. 



Missouri Territory and New Mexico. Fendler. The punctures are obscured by 

 the thick pubescence : there is a fifth black central callus sometimes visible, behind 

 the middle. 



2. S. GENTiLis, plumbeo-nigra, subtiliter cinereo-pubescens, thorace lateribus subrotundato, confertim 



punctato, callis 5 laevibus glabris, elytris minus dense punctatis, apice rotundatis, sutura antice 

 cinerascente, epipleuris testaceis, pedibus laste rufis, tarsis fuscis, antennis cinereo-annulatis. Long. -38. 



Missouri Territory ; one specimen. Smaller than the last, with a thin fine 

 pubescence, which does not obscure any of the sculpture. 



