92 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lu 



near the middle, moderately convex with a small median, somewhat 

 flattened, conical projection extending over the anterior margin; the 

 projection basally bemg scarcely as mde as the reflexed portion of the 

 clypeus; pronotiim coarsely pmictate except for tip of the projection 

 and for a narrow band just behind the anterior margin; the punctures 

 separated by 1 to 3 diameters and bearing fine, brownish, inconspicu- 

 ous setae; surface between the punctures smooth and shining to mi- 

 nutely alutaceous except near the median portion of the posterior 

 margin where it may be finely alutaceous. Elytra with faintly punc- 

 tate, shallow, shining striae; intervals except for sutural interval 

 irregularly biseriately tuberculate, the tubecles bearing small setae at 

 their posterior margins; surface between the tubercles very finely alu- 

 taceous. Pygidium coarsely, setigerously punctate, surface between 

 the punctures largely smooth and shining, particularly on and near the 

 convex apex. Ventral surfaces of thorax coarsely, setigerously punc- 

 tate, laterally with surfaces finely alutaceous; median line of meta- 

 sternum often slightly indented and impunctate. Abdominal segments 

 each with a basal row of setigerous punctures, often obsolete medially, 

 last segment emarginate medially to receive the pygidium. Forelegs 

 elongated, the apex of the femora extending beyond the lateral margins 

 of the pronotum. Foretibia similarly lengthened, quadi'identate; 

 outer margin dentate or serrate between and above the teeth, bent in- 

 wardly in apical haK, the tip extended over the apical spine and usueJly 

 bearing a pencil of hairs. Middle and hind legs not greatly elongated, 

 the femora with a few scattered setigerous punctm'es. 



Male minors. — Length 3.1 to 4.1 nmi., width 1.8 to 2.8 mm. Dif- 

 fering from the male majors in the following respects : Fully as variable 

 in color, but usually lacking greenish cast on the head and pronotum. 

 Head with clypeus emarginate anteriorly but not greatly reflexed; 

 disc of clypeus, frons, and gena as described for male majors. Clypeal 

 carina absent, the area of the carina sometimes slightly tmnid; vertex 

 with a small to moderate, nearly straight carina extending about two- 

 thirds of the distance between the eyes. Pronotum less convex than 

 in male majors with pronotal projection only vaguely indicated, rarely 

 completely absent, punctures extending to anterior margin; pronotum 

 in other respects similar to male majors. Elytra exhibiting all the 

 variations in color mentioned for male majors. Pygidium and ventral 

 surfaces generally similar to those of male majors, but with setae and 

 punctures often more pronounced. Forelegs not greatly extended, 

 femora not extending to lateral margins of pronotum, foretibia short, 

 scarcely bent, lacking apical conical projection over spine and pencil 

 of hair, tibial teeth often slightly larger than in male majors; similai 

 in other respects. 



