408 CALIFORNIA ACADEMY OF SCIENCES. 



This species resembles the Mexican suhcostata, which, 

 however, has the intervals subcostate. Its form and sculp- 

 ture resemble our common ciicunicn's, but the color is 

 different. 



El Taste. 



DYSPHENGES gen. nov. 



Head oval, eyes free, front obtusely carinate between 

 the antennjs without supra-antennal callosities. Labrum 

 moderately large, feebly emarginate in front. Maxillary 

 palpi moderately stout, the last joint slightly longer than 

 the preceding, conical and acute at tip. Antennae slightly 

 longer than half the body, very slightly thicker toward 

 the tip, first joint claviform, second half as long, third 

 slightly longer than second, joints 4—10 slightly longer, 

 eleventh longer, acute at tip. Thorax without basal or 

 longitudinal impressions, the angles distinct. Scutellum 

 triangular. Elytra a little wider than the thorax, with 

 wide epipleurge. Prosternum narrow between the coxa;, 

 the cavities closed behind. Met-episterna much narrowed 

 posteriorly. Ventral segments free, the first much longer 

 than the second. Tibiae grooved on the outer edge, each 

 with a terminal spur. Tarsi moderately stout, the first 

 joint of the posterior a little longer than the next two. 

 Claws appendiculate. 



This new generic name is suggested for a small species 

 which I cannot refer to any of the described genera. It 

 is without doubt referable to the Oxygonites of Chapuis, 

 and seems most nearly related to Oxygona, but differs in 

 having the elytra regularly striate punctate and by the 

 entire absence of frontal callosities, the head, in fact, re- 

 sembling Systena. The angles of the thorax are tuber- 

 culiform and setigerous, as in Oxygona. 



In the arrangement of the Ilalticini proposed by me 



