TENEBRIONIDAE. 383 



gular sutures diverging; elylva with narrow epipleura?. Anterior 

 coxae transverse ; middle coxae witli distinct trochautin ; hind 

 coxaj not widely separated ; intercoxal process trianguhir, sub- 

 truncate; legs stout; anterior tibias dilated ; tibial spurs distinct ; 

 tarsi setose beneath. 



Our genera are as follows: — 



Antcinire niodera-tely long, gradually broader externally ; 



Epistoma rounded or truncate, slightly dilated at the sides. Phaleria. 

 Antennpe short, the outer four joints rather abrui^tly dilated ; 



Epistoma deeply emarginate. Aiicemia. 



Epistoma truncate. Trachyscelis. 



These genera indicate two well-defined groups in the tribe as 

 shown by the structure of the antenna. Phaleria occurs on the 

 seashore of the Atlantic and Pacific coasts; Trach3*scelis on the 

 Atlantic coast, while Anaemia occurs in Owen's Valley, Cal , at a 

 great distance from any seashore. 



Tribe XL— DIAPERIXI. 



Body oval or rounded, winged; head received in the thorax as 

 far as the eyes, which are transverse and coarsely granulated ; 

 front somewhat dilated at the sides, covering the base of the man- 

 dibles; epistoma truncate, separated from the labrum by a short 

 coriaceous clypeus ; antennae more or less thickened externally, 

 perfoliate; mentum small; gular peduncle distinct ; elytra with 

 narrow epipleuras. Anterior coxje transverse; middle coxa? with 

 distinct trochautin ; legs slender ; tibial spurs small ; tarsi pubes- 

 cent beneath. 



Our genera indicate three groups : — 

 Body broadly oval ; eyes emarginate in front : pygidium covered. 



I. DlAPERES. 



First joint of hind tarsi not longer than second. Diaperis. 



First joint as long as second and third. Hoplocephala. 



First joint longer than second and third ; 

 Epipleurse entire; ; intercoxal process acute ; 

 Mesosternurn (loncave ; 



Last joint of maxillary palj)! broadly triangular. Platydema. 



Last joint of maxillary palpi elongate triangular. Phylethus 



Mesosternum prolonged in front. Lioderaa. 



Epijjleura; short ; intercoxal process truncate. Scaphidema. 



Body cylindrical ; eyes emarginate ; pygidium exposed. II. IIvpophi.iei. 



One genus Hypophloeus. 

 Body elongate oval ; eyes not emarginate; pygidium covered. 



III. PE?:TAriiYi,i,i. 

 Last five joints of antennse forming a loose club. Pentaphyllus. 



