32 PROCEEDINGS OF THE NATIONAL MUSEUM vol.76 



Male. — Vertex with primary punctures back of ocelli of first-de- 

 gree density. Front shagreened on lower half; impunctate stripe 

 and carina frequently present; primary punctures large, uniformly 

 distributed over upper two-thirds, of first-degree density except for 

 a limited preocellar area of second-degree density; secondary punc- 

 tures more numerous than primary punctures on lower third, ex- 

 tending upward one-half distance to lowest ocellus laterally, not so 

 high medially. Antennocular distance greater than width of an- 

 tennal fossa. Clypeal extension with its width eight-ninths the 

 clypeo-antennal distance ; apex very shallowly emarginate, with a 

 very narrow impunctate margin. Antenna with the third joint dis- 

 tinguished from the others by a reddish color. Pronotum with punc- 

 tures large, deep, evenly spaced, mostly of first-degree density with 

 a tendency to second degree; secondary punctures lacking. Side of 

 pronotum frequently with an irregular, tapering groove or series 

 of grooves, separated by diagonal rugae extending partially across 

 the center. Mesepisternum with large, round, sharply outlined pri- 

 mary punctures, mostly of first-degree density; secondary punctures 

 very well differentiated and on all parts of upper disk much more 

 numerous than the primary punctures; posterior border elevated, 

 though usually devoid of a true premarginal groove. Scutellum 

 without impunctate apex as wide as the largest apical primary 

 punctures. Metanotum with apical callosity; primary punctures 

 nearly as large as those of the scutellum, and more than equaling 

 the area of their interspaces. Tegula shagreened, with inner comer 

 more than usually produced and upcurled, commonly with a posterior 

 marginal impression ending abruptly at the outer hind comer. 

 Wings with radial cell not equaling second cubital cell in apical ex- 

 tension. Propodeum with areol^ one and one-half times as long as 

 wide, with sharply converging sides, areolar carinae becoming much 

 higher posteriorly, median carina present on anterior half at most, 

 frequently lacking, enclosed area flat and polished posteriorly ; lower 

 portion of sides faintly shagreened anteriorly, posterior portion min- 

 utely setulo-punctate ; posterior aspect with a few large, vague punc- 

 tures at the sides, its median carina present on lower half or less. 

 First tergite with the large, dorsal primary punctures dimpled, no 

 preapical band, but with a deep, preapical, overlapped groove. First 

 sternite with its disk usually transversely wrinkled, the apical fossa 

 <3renulate ; lateral grooves present on posterior half or less ; a crenu- 

 late groove more or less clearly developed along the medial line; 

 anteriorly without a well-defined keel. Tergites 3 to 5 with dense, 

 short, erect, brown pile; punctures removed from the apex at most 

 by about three times width of largest adjacent primary punctures; 

 marginal grooved line developed over the dorsum on segments 2 to 5 ; 



