610 MR. MARTIN JACOBY ON NEW [NOV. 6, 



Var. ?>. Thorax with the anterior and posterior margins partly 

 black, the rest of the surface unspotted. 



Leugth 3-3| lines. 



Head impunctate, the eyes large, the intermediate space nar- 

 rower than their diameter, the frontal tubercles short and broad, 

 bounded behind by a deep groove ; antennae slender, extending 

 nearly to the middle of the elytra, the basal four and the apical 

 two joints pale fulvous, the others black, the third and fourth 

 joints equal ; thorax a little more than twice as broad as long, the 

 anterior and posterior margins nearly straight, the disc black, the 

 sides rather strongly rounded, narrowed anteriorly, the anterior 

 angles not produced outward, the surface impunctate, the sides 

 rather broadly flattened ; elytra very finely and closely punctured, 

 pale testaceous, with the extreme base and an elongate spot on each 

 shoulder black ; legs streaked with black above. 



Hob. Amazons, Ega. 



This is a rather valuable species and one of those in which the 

 eyes are larger than the intermediate space ; in the normal form 

 the disc of the thorax is black, but in many specimens only the 

 anterior and posterior margins are more or less marked with this 

 colour ; the femora are either spotted above with black as well as 

 the tibiae, or are entirely testaceous ; the antennae also vary, having 

 sometimes the first and the last joint testaceous only, or this 

 colour is spread over several joints. 



CEdiontchis tabida (Clk. CataL). 



Pale testaceous, the head, breast, and the apex of the posterior 

 femora black ; thorax impunctate ; elytra closely and distinctly 

 punctured. 



Length 2| lines. 



Head finely punctured, the vertex piceous, the labrum flavous, 

 frontal elevations subquadrate ; antennae fuscous, the basal three 

 joints flavous, third joint scarcely shorter than the fourth ; thorax 

 with strongly rounded lateral margins, the anterior angles acute 

 but not produced into a tooth, the surface impunctate, the 

 scutellum piceous ; elytra very closely and rather strongly punc- 

 tured throughout ; abdomen and legs testaceous, the posterior 

 femora with a piceous spot at the apex, posterior claws piceous. 



Hob. Brazil. 



Of this species a single specimen, named by Clark, is contained 

 in my collection ; the general colour is a uniform obscure testaceous, 

 but the dark head, breast, and the femoral spot, as well as the very 

 close and rather strong elytral punctuation, will separate this 

 species from others similarly coloured. 



CEdionyciiis nigroscutata, n. sp. (Plate XXXVIII. fig. 3.) 



Robust, convex, black ; head and thorax impunctate, the latter 

 flavous with a central black spot ; elytra testaceous, rather strongly 

 punctured, the suture narrowly black. 



Length I lines. 



