178 DESCRIPTIONS OF NEW SPECIES. 



truncate. Antennae longer than the body (%), slender, densely 

 finely pubescent, not sericeous, 3d and following joints scarcely dif- 

 fering in length, 11th equal to 10th, not divided. Prothorax oval, 

 longer than wide, uniformly convex and densely pubescent, with 

 two basal and two discoidal impressions, very faintly marked; 

 truncate at base and tip, not constricted. Scutellum triangular, 

 rounded behind, elytra scarcely wider than prothorax, elongate, 

 parallel, rounded at tip with a small apical spine, near but not 

 on the suture. Front coxal cavities angulated externally, al- 

 though the fissure is open only for a short distance ; prosternum 

 moderate in Width, rounded behind; mesosternum parallel, mode- 

 rate in width, and subemarginate behind, coxal cavities open ex- 

 ternally, epimera not intervening between the sternal plates. 

 Episterna of metathorax narrow, with scent pores distinct. Ven- 

 tral segments gradually decreasing in length, 6th in % slightly 

 protruding, and more hairy. Legs rather long, thighs stout, but 

 not clubbed, tibial spurs small, 1st joint of hind tarsi as long as 

 the two following. 



The body is densely covered with short uniform cinereous pubes- 

 cence, with small scattered denuded round spots on the elytra, as 

 in some species of Hesperophaues, to which it is allied, but differs 

 by the more elongate form, and the absence of the deep transverse 

 frontal suture. 



494. O. gllttattis. Elongatus, piceus, dense breviter cinereo-pubes- 

 cens, protborace coufertim puuctato, latitudine longiore lateribus rotnn- 

 datis, apice basique truncato, disco antice vage biimpresso, et utrinque 

 ad basin leviter impresso ; elytris elongatis, parallelis, punctatis, guttis 

 pluribus parvis rotundatis denudatis, apice rotundatis et breviter acu- 

 minatis. Long. 17 — 19 mm. 



Two males ; Cape San Lucas, Mr. Xantus. 



EBIRIA Serv. 



A polymorphic genus, with which should probably be recom- 

 bined some of the genera that have been separated from it. Those 

 tabulated below, however differing in other characters, have the 

 front coxal cavities more or less angulated externally, sometimes 

 nearly rounded, and the joints of the antenna? not sulcate. In 

 the % of the first two species the basal joint of the antennae is 

 somewhat flattened in front, but not sufficiently so to warrant 

 their reception in the group Coeleburia. 



