OPHEJEA. 495 



5. Ophrsea melancholica. (Tab. XXVIII. fig. 9.) 



Narrowly elongate, black ; clypeus Mvous ; thorax minutely punctured ; elytra finely rugose, black, with, a 



slight purplish tint at the sides, sparingly pubescent. 

 Length 2 lines. 



Eab. Mexico, Juquila (SallS), Oaxaca {Edge). 



The entirely black colour, with the exception of the fulvous lower part of the face, 

 and the finely rugose upper surface of all the parts, will separate 0. melancholica from 

 any of the preceding species. The shape of the thorax agrees rather more with that 

 of a species of Schematiza (the sides being rounded and the anterior and posterior 

 margins nearly straight), but the entire absence of any dilatation of the antennae (which 

 are only somewhat thickened towards the terminal joints) prevents the species being 

 placed in that genus ; the elytra are sculptured like the thorax, finely and sparingly 

 pubescent ; the thorax is shallowly depressed at the sides and at the middle. 0. melan- 

 cholica may also be known from any of the preceding species by its entirely black 

 colour. 



6. Ophraea minor. 



Ovate, slightly widened posteriorly, black ; thorax rufous, minutely rugose and pubescent ; elytra more 



distinctly rugose, finely pubescent towards the sides. 

 Length 2 lines. 



Hab. Mexico, Capulalpam {Salle). 



This insect is almost identical in coloration with 0. rugosa, and it will only be 

 necessary to point out the differences : 0. minor is smaller in size, with the thorax 

 scarcely visibly punctured (in 0. rugosa this part is coarsely rugose) ; the elytra are 

 also more finely rugose, and show scarcely any traces of depressions ; the thorax is not 

 angulate at the sides and its anterior and posterior margins are nearly straight ; the 

 legs are black, but the coxae are generally fulvous. 0. metallica differs from the 

 present insect by the very deep and strong elytral punctuation. 



7. Ophrsea elongata. 



Elongate, black, the margins of the thorax and the femora more or less flavous ; elytra scarcely pubescent, 

 obscure metallic greenish or seneous, rugose throughout. 



Var. Elytra and legs black ; thorax entirely fulvous. 



Length 2|-3 lines. 



Head very finely rugose, the vertex black, the clypeus testaceous ; antennae about half the length of the body, 

 the third joint the longest ; thorax about twice as broad as long, the anterior angles produced into a very 

 small tooth, the sides more or less rounded at the middle, or obtusely angulate, the surface sculptured 

 like the head, covered with yellowish pubescence, flavous, with the middle of the disc more or less broadly 

 fuscous ; scutellum obscure seneous ; elytra much more strongly rugose than the thorax, with a metallic 

 purplish or greenish hue, the sides clothed with short silky pubescence. 



Eab- Mexico, Guanajuato, Yolo tepee, Istapan (SalU) ; Guatemala, Zapote, Cape- 

 tillo (Champion). 



