OCR Text |
Show 1 9 0 5 .] OF PHYTOPHAGOUS COLEOPTERA. 4 3 3 Head fulvous, impunctate, eyes widely separated; antennas 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; prosternum comparatively broad, flavous. Hab. Petropolis, Brazil. A well-distinguished species on account of the colour and sculpture of the elytra. Elytra dark, with flavous spots, patches, or bands. O e d io n y ch is in t e r s ig n a t a , 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 ; antennae 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 epipleurse ; underside and legs black. Hab. Espirito Santo, Brazil. A rather variable species as regards the flavous markings of the elytra, but distinguished by the comparatively strong punctuation ; the central flavous band scarcely extends to the suture, nor does the apical one, but both unite with the flavous lateral margins. O e d io n y ch is rustic a , sp. n. Testaceous, the intermediate joints of the antennse 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; antennae extending beyond the middle of the elytra, the five lower and the terminal two joints fulvous, the others blackish; thorax |