20 CEDIOI'.VLPA. 



tions alonji; the sidos, the narrow lateral border thickened, reflexed ; 

 on the anteiior edge of the basal lobe is a transverse groove ; 

 posterior angles slightly produced backwards, acntc ; the form of 

 the thorax differs slightly, in some indi'S'idnals being rather broader 

 and having its sides less thickened. Scutcllum broad, subpentan- 

 gular. El}'tra rather broader than the thorax in the male, some- 

 what wider in the female ; sides parallel, narrowly margined ; apex 

 acutely rounded ; humeral angle with a small indistinct obtuse 

 tooth ; above convex, base more or less deeply excavated between 

 the shoulders into several large fovese, these sometimes entirely 

 absent ; surface regularly punctate-striate, punctiuing always 

 deeper and coarser at the sides, but vai^ying in size and depth over 

 the whole surface in different individuals ; outer border reflexed, 

 serrate towards the apex. Beneath blue-black ; segments of abdo- 

 men impressed on either side with a shallow fovea, those on the 

 anal segment deeper than the rest ; sides of the thorax alone rufous. 

 In a specimen in the Museum collection, and also in another in my 

 o^vn, the legs arc obsciu'e reddish piu'plc ; the Museum insect has 

 also the elytra the same colour. 



Hah. Interior of Brazil, Guerin ; Amazons. Collected by H. W. 

 Bates, Esq. 

 Bi'itish Museum and most collections. 



I think the Cephaloleia Pertiji of Guerin, and probably also the 

 Alurnus cyanipennis of Perty, are only forms of the above. Guerin 

 has not given a detailed description, but merely states the thorax to 

 be more transverse and the' sides more rounded ; he at the same time 

 expresses a doubt as to his insect being more than a sexual variety of 

 the typical form. The sjjecimens that I have seen of (Ediopalpa col- 

 Jaris differ so widely in size and depth of sculptiu'e, that, without an 

 intermediate series, the two extremes would be regarded as distinct 

 species. 



6. (Ediopalpa Guerinii, n. sp. B.M. 



(E. elongata, subconvexa, dorso leniter depressa, nitida ; capite nigro ; 

 thorace transverse, lateribiis rotundatis, antice angustatis, testaceo, 

 apice angiiste nigro ; elytris punctato-striatis, cyaneis, subtus Isete 

 caeruleis ; thorace subtus testaceo. 



Long, 3^-4 lin. 



CE. elongate, parallel. Head and antennae black, the latter subfili- 

 form. Thorax transverse, shining testaceous above and below, 

 a narrow patch on the apical margin a])ove alone black ; sides re- 

 flexed, straight at their base, thence to the apex regularly rounded ; 

 basal margin deeply sinuate on either side ; medial lobe broad, ob- 

 tuse ; posterior angles vciy acute ; above convex, smooth and 

 shining, distantly punctured. Scutcllum smooth, impunctate. 

 Elytra shining metallic blue, rather broader than the thorax ; 

 sides parallel, narrowly margined ; apex acutely roimded ; above 



