NATURAL SCIENCES OF PHILADELPHIA. 39 



III. Anterior coxal cavities rounded, open behind; maxillae short, labial palpi 



normal. 



A. Eyes coarsely granulated : Distenia, Eburia, &c. ; Elaphidion, <fcc; 



Ibidion. 



B. Eyes finely granulated : 

 Front short, oblique: 



Femora slender, clavate : Ancylocera. 



Femora not clavate: Arbopalus, Stenosphenus, Mannophorus, &c. ; 



Megaderus, Dendrobias, Trachyderes, Stenaspis, &c. ; Tylosis, Cros- 



sidius, &c. 

 Front large, quadrate, vertical : 



Femora not clavate: Tragidion, Purpuricenus. 

 Femora very clavate: Clytns, Eudercef. 



IV. Anterior coxal cavities angulated, open behind; maxillae short, palpi 



normal. 



A. Anterior coxae not transverse, eyes coarsely granulated : 



Femora slender at base, suddenly clavate: Obrium, &c. 

 Femora gradually clavate : Sclerocerus, Dryobius, Gracilia, Smodi- 

 cum, Atimia, Opsimus. 



B. Anterior coxae transverse : 



a. Eyes finely granulated: 

 Femora not clavate : Rosalia. 



Femora slender at base, almost suddenly clavate : Callidium. &e. 

 Femora gradually but strongly thickened : Tetropium, Asemum. 



b. Eyes coarsely granulated: Criocephalus. 



Description of new species. 



Edilis obliquus, elongatus, cinereo-pubescens, nigro-variegatus, ely- 

 stis tribus nigro-tesselatis parum elevatis, f'ascii?que duabus obliquis nigris 



1. ^Edi 

 tris cost 

 ornatis, profunde minus parce punctatis. Long. -45 -53. 



Kansas, New Mexico, Arizona and California. Of the same shape as our 

 Eastern M. o b s o 1 e t u s, but readily distinguished by the less distant punctures 

 of the elytra and the three elevated eostae ; the 3d, 4th and 5th joints of the 

 antennae are clotbed beneath with dense, short, very fine hair, as in M. obso- 

 1 e t u s . 



2. Dectes t e x a n u s , elongatus, niger, dense cinereo-pubescens, thorace 

 latitudine fere longiore, spina baud divergente, lineam lateris recte continu- 

 ante. Long. -31. 



Texas, one specimen. This species resembles D. spinosus, {Lamia spi- 

 nosa Say,) but is more slender, aod the lateral spines near the base of the 

 thorax do not diverge from the straight line of the sides. 



I erroneously described the anterior coxal cavities of D. s p i n o s u s as being 

 open behind ; they are in reality closed, though much more narrowly than is 

 usual in this tribe. Thomson (loc. cit. 14) seems to have considered this 

 insect as Hetceuiis c i n e r e a Lee, (juglandis Hald.,) which belongs to a very 

 different genus, allied to Dorcaschema. 



3. Liopus r e g u 1 a r i s , elongatus, depressus, niger, pube cinerea brevis- 

 sima dense vestitus, thorace maculis rotundatis 4 quadratim positis, elytris 

 utrinque 2, 2, 1, 1 rotundatis nigerrimis ornatis; antennis, ore, femoribusque 

 fulvis, his apice nigris; elytris parce subtiliter punctatis apice rotundatis, 

 thorace spina laterali valde divergente. Long. -27. 



Ohio ; Mr. Ulke. This beautiful species is of the same form as L. s y m m e t- 

 r i c u s , but the lateral spine of the thorax is longer and more diverging. 



4. Pogonocherus n u b i lu s, nigro-piceus, nitidns, pube brevi densa cinerea 

 irrpgulariter adspersus, thorace latitudine sesqui breviore, confertim punctato, 



1862.] 



