18y2.] SPECIES OF PHYTOPHAGOUS COLEOPTERA. 53 



thickened; second a little shorter than the third ; seventh and eighth 

 joints gradually widened ; last three joints flattened, broader than 

 long, black. Thorax narrowly transverse, fulvous, shining ; sides 

 rounded, anterior margin straight ; disk rather convex, closelv and 

 deeply punctured. Scutellum triangular, fulvous. Elytra wider at 

 the base than the thorax, moderately convex, the sides deflexed ; 

 surface closely and regularly ])unctate-striate, black, opaque, a trian- 

 gular spot at the shoulder and a narrow elongate ajjical one fulvous. 

 Underside and legs entirely fulvous. 



Three specimens are contained in my coUebtion. 



Balya, nov. gen. 



Elongate, subparallel. Head perpendicular, broad, invisible from 

 above. Eyes slightly eraarginate, small. Palj)! filiform. Antennae 

 half the length of the body ; second joint short, globose ; third 

 and following three joints subequal, slender ; the rest gradually 

 thickened. Thorax transverse, its sides rounded and entire, anterior 

 angles produced. Scutellum triangular. Elytra sHghtly wider than 

 the thorax, convex, semipunctate-striate. Legs of moderate size ; 

 the intermediate and posterior tibife of the male with a large tri- 

 angular acute tooth. 



$ . Intermediate tibiae toothed only, the posterior ones emar- 

 giuate ; prosternum greatly narrowed in the middle, the base trun- 

 cate ; anterior thoracic episternum concave. 



Type, Bahja quadrunacuhtta . 



I found this genus upon a handsome-coloured insect, of which 

 three specimens are contained in my collection, from Brazil. It 

 ought to be placed amongst the first group of tlie Eumolpidse (the 

 Iphimein(e, according to Chapuis's arrangement), from all genera of 

 which it is easily distinguished by the toothed middle and posterior 

 tibiae of the male and its general elongate subcylindrical shape. 



;"). Balya quadrimaculata, sp. nov. 



Below black ; head, tliorax, and the base of the femora fulvous ; 

 antennae (the first 4 joints excepted), a spot at the middle of the 

 thorax, and the tibiae black ; elytra dark purplish, the suture and 

 two spots on eacli elytron flavous. 



Length 3 lines. 



Hah. Brazil (Lagoa Santa). 



Head very finely and closely punctured, broad, the eyes verv 

 distant. Antennae black, the first four joints fulvous. Palpi fulvous, 

 terminal joint black. Thorax transversely convex, not narrower at 

 the apex than at the base, the anterior angles produced into a short 

 tooth, fulvous, with a central black rhomboidal spot; surface 

 scarcely visibly j)uuctured. Scutellum black, triangular. Elytra 

 slightly wider at the base than the thorax, parallel and subcylindri- 

 cal ; surface closely covered with large and smaller punctures arranged 

 in subregularrows, the apex longitudinally costute ; ofadark purplish- 

 blue colo;ir, the suture narrowly, and two irregular- shaped spots near 



