84 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 76 



carina on the lower half or less. Preapical band Avith a single row 

 of closely set but well separated punctures distally, its impression 

 abruptly outlined anteriorly. First sternite polished, without sculp- 

 turing except lateral grooves on posterior quarter or less. Tergites 

 3 to 5 with impunctate apices wider at the middle, where they are 

 at least one-fourth the width of the punctate portion of the tergite, 

 P3^gidium uniformly punctate on basal three-fifths, with a large,, 

 impunctate emargination ; impunctate apex wrinkled, but not 

 shagreened. Length, 6.5 to 7.5 mm. 



Male. — Vertex with a small, wedge-shaped invasion of minute 

 punctures from the posterior slope; primary punctures everyAvhere 

 of third-degree density. Front conspicuously shagreened ; punctures 

 of preocellar area of third-degi-ee density with several impunctate 

 spots as broad as an ocellus; secondary punctures rather poorly de- 

 fined, though as abundant as the primaries in the area to which they 

 are limited, that is, the lowest third directly above the antennal fos- 

 sae. Antennocular distance equal to about the width of antennal 

 fossa. Clypeal extension with its apical width four-fifths the clypeo- 

 antennal distance; apex shallowly emarginate, with a very narrow 

 impunctate margin. Pronotum with dorsum shagreened; primary 

 punctures with poorly defined margins, and of uniform third-degree 

 density; secondary punctures not very distinct, largely confined to 

 antero-medial region. Side of pronotum faintly striate, without a 

 groove across the center, and almost free of sculpturing. Mesepister- 

 num shagreened; primary punctures small and not clearly outlined, 

 of third-degree density; secondary punctures on upper half some- 

 what more numerous, thinning out ventrally. Scutellum with im- 

 punctate apex, at places wider than the lowest primary punctures. 

 Metanotum with primary punctures barely of first-degree density and 

 nearly as large as the largest of the scutellum. Wings hyaline, with 

 radial cell equalling, or slightly exceeding second cubital cell. Pro- 

 podeum with areola scarcely one and one-quarter times as long as 

 wide, outline subrectangular, the median carina usually ending be- 

 fore apex of areola ; enclosed area flat and shagreened ; upper portion 

 of side with its parallel rugae very fine and disappearing posteriorly ; 

 lower portion of side shagreened, not densely hairy ; posterior aspect 

 with median carina confined to lower half, and uniformly clothed 

 with dense, fine, poorly outlined, setulose punctures. First tergite 

 highly polished, with only sparse, fine punctures medially; preapical 

 band in a broad depression, with its punctures widely separated. 

 First sternite with lateral grooves on posterior fourth; disk polished, 

 impunctate, anterior half sparsely and shallowly punctate, with a 

 pronounced median keel. Tergites 3 to 5 with their punctures fine, 

 rather sparse, with poorly defined margins; impunctate margin me- 



