CEPHALODONTA. 135 



terior angles shining, purplish black. Body beneath shining- 

 sanguineous. 



Hab. Amazons. 



A single specimen in the collection of W. W. Saunders, Esq. 



10. Cephalodonta pretiosa, n. sp. 



C. elongata, subdepressa, pallide t\ilva ; thoracis 'vittis tribus elytris- 

 que obscure metalHco-purpureis ; his costatis, angulo postico in 

 spinam validam acutam productis, utrisque macuhs octo, conflu- 

 entibus, superficiem fere amplectentibiis, palhde fill vis. 



Long. 4^ lin. 



C. elongate, subdepressed, pale fulvous, thi-ee longitudinal stripes on 

 the thorax and the elytra metallic purj)le, the latter armed at the 

 posterior angles with a large, flattened, very acute spine ; each 

 elytron with eight u-regulai- pale fulvous spots, confluent and 

 covering nearly the whole surface. Head angled between the 

 eyes, impressed on the vertex with a distinct fovea ; antennsB 

 equal in length to two-thirds of the body, slender, indistinctly in- 

 crassate towards their apex, joints cylindrical, the second tAxdce as 

 long as the fii'st, foiu* terminal joints short ; eyes black. Thorax 

 broader at the base than long ; sides narrowly margined, nearly 

 straight behind, angled in the middle, narrowed and subsLnuate 

 in front, anterior angles produced, subacute ; above subdepressed 

 on the disc, convex on the sides, coarsely punctured, basal lobe 

 deflexed, impunctate ; a narrow central vitta and a broader sub- 

 marginal stripe on either side, dark metallic purple. Scutellum 

 margined, impunctate. Elytra elongate ; sides nearly parallel, 

 narrowly margined, posterior angles armed with a large, flattened, 

 veiy acute spine ; apex (Tab. IX. fig. IS) obtusely rounded, apical 

 margin narrow, its outer border serrate, serratures larger towards 

 the sxiture ; above flattened along the back, convex on the sides; 

 shoulders prominent, laterally produced, their apex subacute ; 

 surface deeply and regularly punctate-striate, alternate interstices 

 subcostate, the second from the outer margin and the fourth from 

 the suture costate ; obscm*e metalHc purple, each elytron with 

 eight irregular spots, confluent and covering nearly the whole 

 surface. Beneath pale fulvous ; legs slender, anterior pair elon- 

 gate, anterior tibiae armed near their apex with a short spine. 

 {Male.) 



Hah. Brazil. 



Collection of W. W. Saunders, Esq. 



17. Cephalodonta obsoleta, u. sp. 



C. elongata, postice vix ampliata, subdepressa, pallide fulva ; oculis 

 antennisque nigris, his apice fiiscis ; elytris angulo postico spina 

 valida acuta armatis ; pallide riifo-violaceisajnco-micantibus, vitta 



