1905.] OF PHYTOPHAGOUS COLEOPTERA, 433 



Head fulvous, impunctate, eyes widely separated ; antennaa 

 black, the basal two joints obscure fulvous, terminal joints 

 shortened, third and fourth equal ; thorax twice as broad as long, 

 the sides rounded anteriorly, the middle of the disc rather convex, 

 the anterior angles produced outwards into a small tooth, the sides 

 broadly flattened and subrugose, the surface impunctate, obsoletely 

 transversely sulcate near the base ; scutellum black ; elytra not 

 perceptibly depressed below the base, dark blue, not very shining, 

 closely and distinctly rugose punctate throughout ; below and the 

 legs bluish black ; presternum comparatively broad, flavous. 



Hob. Petropolis, Brazil. 



A well-distinguished species on account of the colour and 

 sculpture of the elytra. 



Elytra dark, xoiih flavous spots, patches, or hands. 

 Oediontchis intersignata, sp. n. (Clark Catal.). 



Black, thorax flavous; elytra closely and strongly punctured, 

 violaceous or blue, a transverse band or broad patch at the middle, 

 the apex and the lateral margins (partly) flavous. 



Length 7 millim. 



Head piceous or black, impunctate, eyes very large, as wide as 

 the intraocular space, frontal elevations strongly raised, pyriform, 

 carina acute ; antennas black, the lower three joints fulvous below, 

 third and fourth joints equal ; thorax quite twice as broad as long, 

 the sides rounded, broadly flattened within, the anterior angles in 

 shape of a very small tooth, the surface impunctate, flavous ; 

 scutellum black ; elytra strongly and closely punctured, blue, 

 violaceous or purplish, with a transverse flavous patch at the 

 middle and a smaller one at the apex, the lateral margins 

 anteriorly and posteriorly likewise flavous as well as the elytral 

 epipleuree ; underside and legs black. 



Hah. Espirito Santo, Brazil. 



A rather variable species as regards the flavous markings of 

 the elytra, but distinguished by the comparatively strong j)unc- 

 tuation ; the central flavons band scarcely extends to the suture, 

 nor does the apical one, but both unite with the flavous lateral 

 margins. 



Oedionychis rustica, sp. n. 



Testaceous, the intermediate joints of the antennae black; thorax 

 impunctate ; elytra extremely closely and finely punctured, a 

 transverse band at the base, another of oblique shape near the 

 apex, and the intermediate portion of the suture fulvous, more or 

 less edged with piceous. 



Length 5 millim. 



Head impunctate, eyes very large and rather closely approached ; 

 frontal elevations broad, subquadrate, divided by a narrow groove ; 

 antennas extending beyond the middle of the elytra, the five lower 

 and the terminal two joints fulvous, the others blackish ; thorax 



