Horn.] 



OPHRYASTINI. 29 



Abdomen with second segment longer than 

 the two following together, first suture 

 strongly arcuate. Intercoxal process ver}'- 



broad Rhisropses. 



Kostrum less robust, sub-cylindrical, never sul- 

 cate above. Scrobes feebly inferior, usually 

 directed toward the ej^es or visible from 

 above and badly defined. Eyes oval, not acute 

 below and usually entirely free. 



Scrobes entirely lateral Stran^aliodes. 



Scrobes visible from above ■ Phyxeies. 



The groups as above defined are very distinctly limited in our fauna, the 

 last group alone being of doubtful value. 



In this tribe, occur genera with the narrow third tarsal joint, which 

 however, is not of the form seen in the Byrsopid^. This character will be 

 spoken of at greater length in the genera in which it occurs. 



Group I. Ophryastes. 



Rostrum robust, angular, more or less distinctly trisulcate, tip feebly 

 emarginate with a small triangular smooth space. Antennae moderately 

 robust, scaly, scape gradually thicker, nearly attaining the eyes, funicle 

 7-jointed, the last joint contiguous to the club which is oval. Scrobes deep, 

 passing obliquely downwards in front of the eyes. Eyes oval, transverse, 

 pointed beneath. Thorax variable in form, either oval or transverse, and 

 with callosities at the sides. Elytra oval or oblong. Scutellum wanting. 

 Abdominal sutures straight, second segment equal to, or very little longer 

 than, the third. Tibiae not mucronate at tip. Tarsi variable. Claws free. 

 The articular surfaces at the tips of the hind tibiae are very nearly termi- 

 nal and in great part scaly. Lacordaire calls them " caverneuse," hut I 

 think without reason (for the majority of the species). They are cavernous 

 in some Eupagoderes. The mesosternal side pieces are very unequal, the 

 epimeron being very small. The metathoracic episternum is moderately 

 broad and the suture more or less distinct. In all the species the ophthal- 

 mic lobes are of moderate size and fimbriate. The surface of the body is 

 densel}^ scaly and without any pubescence. 

 Two genera appear to be indicated in our fauna. 

 Tarsi slender, third joint not wider than second, 

 and simply emarginate. Sides of thdVax with 

 tuberosities more or less marked. Tips of tarsal 



joints beneath spiniform OPHRYASTES. 



Tarsi dilated, third joint usually wider than 

 second and deeply bilobed. Thorax oval 

 without tuberosities, tarsi beneath not spinous 



at tip EUPAGODERES. 



In the first genus the elytra are broadly oval, in the second elongate 

 oval. In the latter also, the legs are longer. 



