24 LE CONTE.— COLEOPTERA OF THE 



Eburia m a n c a , fusca, subtiliter cinereo-pubescens, thorace l'ude punctato, latitudine paulo longiore, 

 lateribus vix rotundatis tuberculo parvo acuto armatis, callis rotundatis 4 ante medium nitidis (externis 

 in latera sitis), elytris sat dense punctatis, callo parvo basali, alteraque ad medium eburneis nitidis, ad 

 apicem subtruncatis spina brevi suturali armatis, femoribus apice muticis. Long. -66. 



Kinggold Barracks, Texas, Mr. Haldernan. Closely resembles E. mutica Lee, 

 but the thorax is narrower and the lateral tubercle is more distinct, the ivory spots 

 of the elytra are single, and the suture is slightly produced into a spine. 



Amannus Lee. 



Antennae 11-articulatas, filiformes, maris corpore lougiores, feminse breviores, articulo 3io paulo longiore. 

 Palpi breves asquales, compressi : mentum transversum, trapezoideum ; mandibulre integrae aeutae. 

 Oculi subtiliter granulati. Thorax subcylindrieus, antice paulo angustatus, nee apice nee basi 

 marginatus. Elytra apice subrotundata. Pedes baud elongati, femora gracilia haud clavata ; tarsi 

 postici articulo lmo sequentibus duobus longiore. 



A genus distinguished rather by the want of any prominent character, and which 

 will very likely fall into some previously established by other authors, but which from 

 the imperfect method of description used cannot be identified with satisfaction. 



It belongs to the numerous group V. of my arrangement, ( Journ. Acad. 2nd ser. 

 2, 7,) which is known by the round dehiscent anterior acetabula, acute mandibles, flat 

 mesosternum, simple not clavate thighs, compressed palpi and very short front. The 

 genera have been increased since the writing of my paper, and renewed investiga- 

 tion having revealed some other characters, the following table, in advance of a full 

 supplement to my memoir, may be found useful. 



A. Oculi rude granulati. Eburia, including Cerasphorus ; Elaphidion. 



B. Oculi subtiliter granulati, (thorax haud armatus). 



Antennae articulis spina apicali armatis Stenosphenus. 

 Antennae muticae. 



Thorax basi apiceque marginatus ; 



margine apicali valde prominulo Mannophorus. 



margine apicali mediocri E r i p h u s . 



Thorax nee basi nee apice marginatus Amannus. 



Thorax basi sola marginatus Arhopalus. 



I have removed Purpuricenus and Tragidion from the group, because the front is 

 more elongated. 



A. vitti ger, niger, capite thoraceque dense pallide pubescentibus, hoc antrorsum subangustato lateribus 

 late rotundatis, punctato, callo obsoleto dorsali laevi, elytris pallide flavis, vitta dorsali angusta antice 

 parum abbreviata nigra, sutura margineque nigricantibus, confertim punctatis, pubescentibus, obsolete 

 bicostatis, apice late haud subito truncatis ; subtus dense pallide pubescens, abdomine fasciis nudis 

 nitidis notato. Long. -43. 



One specimen Llano Estacado, Capt. Pope. Has somewhat the appearance of Sphe- 

 nothecus. The specimen is a female, with the antennre two-thirds the length of the 

 body. 



