OF PHYTOPHAGOUS COLEOPTERA. 355 



prima ante medium, elytri medio abbreviata, alteraque vix pone me- 

 dium, integra, pauUo obliqua, uigro-cupreis. Long. 5^ lin. 



Sah. Ecuador. Collected by Mr. Buckley. 



Head rather closely punctured ; front impressed with a short 

 longitudinal fovea; antennae black, the basal joint nigro-cyaneous. 

 Thorax scarcely twice as broad as long ; sides straight and paral- 

 lel from the base to beyond the middle, thence rounded and con- 

 verging to the apex, the latter produced, armed with a short 

 piceo-falvous tooth; upper surface excavated on either side, 

 deeply punctured, the punctures irregularly crowded on the inner 

 disk, leaving here and there some impunctate patches. Elytra 

 broader than the thorax, convex, rather finely but distinctly punc- 

 tured, the punctures arranged in longitudinal rows on the inner 

 disk and on the extreme outer margin of the elytron, these 

 rows approximate, but rather indistinctly, in pairs : on the 

 greater portion of the outer disk the puncturing is confused ; 

 the disk of each elytron with five or six obsoletely elevated vittee ; 

 pale yellow, each elytron with a spot at the base near the scutel- 

 lum ; abroad common erose fascia, abbreviated at the middle of the 

 elytron, placed halfway between the base and the middle, and a 

 second entire, also erose, slightly oblique, situated just below the 

 middle, nigro-cupreous ; inflexed limb longitudinally concave, 

 black, with a faint metallic tint. Mesosternal spine rather longer 

 than the metasternum. 



Genus Labidomera, Chevr. 



Labidomera imperialis, n. sp. Rotundato-ovata, valde couvexa, 



metallico-purpurea, subnitida, scutello, tarsis antennisque nigris, his 



basipiceis; thorace opaco impunctato; elytris tenuissime punetato- 



striatis, punctis in striis confusis, utrinque fascia irregulari pone 



medium, utrinque abbreviata, pustulisque tribus, prima subrotundata, 



infra basin prope suturam sita, duabusque prope medium transversim 



positis, externa transversa, interna subrotundata, Isete fulvis ornatis. 



Long, 5 lin. 



Hah. Eio Janeiro. Collected by the late Mr. Squire. 



Head smooth, impunctate ; front and vertex impressed with a 



very fine longitudinal groove ; clypeus short, its upper margin 



transverse, its surface slightly concave, finely punctured ; antennae 



half the length of the body, three lower joints piceous, stained 



above with black. Thorax more than twice as broad as long ; 



sides rounded, converging in front, anterior angles acute ; upper 



surface opaque, impunctate. Elytra very minutely punctate- 



