494 PHYTOPHAGA. 



viated near the apex ; the last abdominal segment of the male emarginate at the apex, that of the female 

 simple, a testaceous spot on each side in both sexes. 



Hab. Mexico, near the City (Flohr, coll. Jacoby), Juquila (Hoge) ; Costa Eica (Van 

 Patten). 



Differs from the preceding species in its more parallel shape, and in the want of the 

 thoracic black band and elytral costse. 



3. OphrsBa 8Bnea. (Tab. xxvill. fig. 7.) 



Entirely brownish-aeneous ; legs testaceous, the knees, the apices of the tibise and the tarsi, blackish ; the 

 upper surface entirely and closely rugose. 



Length 3| lines. 



Head closely rugose ; the clypeus testaceous ; thorax scarcely more than one half broader than long, the 

 anterior angles produced into a short tooth, the sides distinctly angulate below the middle, the disc broadly 

 longitudinally grooved in the centre, more obsoletely so at the sides ; elytra widened below the middle, 

 without any raised costae, closely rugose and wrinkled, the interstices furnished with a very few short 

 hairs ; epipleurae broad and concave at the shoulders, extending nearly to the apex. 



Hab. Mexico, Oaxaca (Hoge). 



The single specimen received has unfortunately lost the antennae, but as all the 

 characters peculiar to Ophrwa are present I have placed it in this genus. The species 

 may at once be known amongst its allies by the uniform bronze colour and the testa- 

 ceous legs ; the thorax is less transverse and rather longer than in 0. rugosa. 



b. Species of more parallel shape, the thorax rounded at the sides. 



4. OphrsBa metallica. (Tab. xxvill. fig. 8.) 



Black below ; thorax and femora obscure fulvous ; elytra dark aeneous, covered with very short yellow pube- 

 scence, strongly rugosely punctured. 



Length 2f lines. 



Head obscure fuscous or fulvous, the clypeus lighter ; the vertex finely rugose, rather thickly clothed with 

 yellow pubescence ; antennae short, black, the third joint slightly longer than the fourth, the following 

 ones scarcely shorter ; thorax three times as broad as long, the anterior angles produced into a short 

 tooth, the sides rather strongly rounded before the middle and forming an obsolete angle, the posterior 

 margin slightly rounded and sinuate at the angles, the surface flattened at the sides, forming a broad 

 depression, another very obsolete, more longitudinal depression is placed at the middle of the disc, the 

 latter irregularly and closely rugose, sparingly clothed with yellow hairs ; scutellum broadly ovate, pube- 

 Bcent ; elytra nearly parallel, narrowly margined, with some obsolete, longitudinal, smooth, raised lines, 

 the entire surface strongly rugosely punctate, the punctures deeply impressed and larger on the middle of 

 the disc than at the sides, of a metallic brownish-aeneous colour, near the extreme margin with purplish 

 reflections, the apices and the sides covered with thin yellowish pubescence ; epipleurae broad, finely punc- 

 tured, and extending to the apex. 



Hab. Mexico, Capulalpam (Salle). 



This species may be separated from 0. rugosa by the elytra being metallic in colour 

 and deeply punctured, and the thorax differently shaped. 



