1905.] OF PHYTOPHAGOUS COLEOPTERA. 437 



dividing space ; labrum fulvous ; antennas vv^ith the lower four and 

 the apical three joints fulvous, the others black, third and follow- 

 ing joints nearly equal, elongate ; thorax with strongly rounded 

 and flattened sides, the anterior angles mucronate and produced 

 forward, the disc impunctate, testaceous, obsoletely transversely 

 grooved near the base ; elytra finely and closely punctured, rather 

 flattened, narrowly marginate, each elytron with two narrow 

 longitudinal stripes — one near the suture, the other near the 

 lateral margins, below the middle both, or one, of the stripes are 

 interrupted, so that only one or two elongate spots remain near 

 the apex ; under side and legs testaceous, the breast black. 



Hah, St. Oatharina, Brazil. 



In one of the specimens the inner black elytral stripe only is 

 interrupted ; in the other this is the case with both stripes, there 

 is also an indication of another stripe in shape of a minute spot 

 between the others, placed at the middle. Amongst the species 

 with elytral longitudinal bands the present one is well distin- 

 guished by the colour of the head, antennae, and the shape of the 

 elytral stripes, which resemble signs of exclamation. 



Elytra pale, ivith transverse black or blue bands or s2)ots. 



Oedionychis bistripasciata, sp. n. 



Black or piceous, antennae dark fulvous, clypeus ilavous ; thorax 

 impunctate, flavous ; elytra finely and closely punctured, flavous, 

 each with three transverse dark blue bands, the first subquadrate 

 and emarginate or subdivided at the base. 



Length 5^ millim. 



Of rather elongate shape ; the head bluish black, with some 

 strong punctures near the eyes ; clypeus and labrum flavous, the 

 eyes likewise margined more or less with the same colour ; antennee 

 extending to nearly the middle of the elytra, dark fulvous, the 

 basal two joints more or less stained with black a^bove, third and 

 fourth joints equal, terminal joints slightly thickened ; thorax 

 rather more than twice as broad as long, the sides strongly but 

 not very broadly flattened, the lateral margins rounded anteriorly, 

 anterior angles produced into a short blunt tooth, the surface 

 impunctate or with a few very minute punctures, obsoletely 

 transversely grooved near the base, flavous ; scutellum black ; 

 elytra finely and closely but distinctly punctured, with three 

 transverse blue or purplish bands — the first at the base the largest, 

 of subquadrate shape, its basal margin with a narrow incision, 

 the second band immediately below the middle, half the width of 

 the first band, the third near the apex, short and of subquadrate 

 shape, none of these bands extends to either margin ; below and 

 the legs black or piceous. 



JIab. Peru. 



In one of the specimens before me the basal band is also rather 

 deeply emarginate near the suture at the sides as well as at the 

 base. 



