,68 PROCEEDINGS OF THE NATIONAL MUSEUM vol.76 



Intermediate tergites with apical rows of punctures closely parallel 

 to apex, and bearing even rows of coarse yellow hairs ; sternites with 

 similar apical rows. Pygidium black, rugose-recticulate at base, the 

 rugae parallel on aj^ical half and extending to tip, apical half not 

 faintly wrinkled and impunctate as is usual in other species. Hy- 

 popygium with a narrow medial impunctate stripe on lower half. 

 Length, 11-14 mm. 



Mal>e. — Vertex with primary punctures back of and between ocelli 

 of first-degree density. Front with very distinct impunctate stripe, 

 becoming carinate anteriorly ; densely covered on upper three-fourths 

 with primary punctures which are deep, irregular, elongated upward, 

 and separated by spaces much less than width of punctures; no 

 preocellar region of sparse punctures; secondary punctures sparse, 

 ascending higher on sides than medially, confined to lower third or 

 less. Antennocular distance greater than width of antennal fossa. 

 Clypeal extension with its width four-fifths the clypeoantennal dis- 

 -tance; apex moderately emarginate; impunctate margin lacking. 

 Pronotum with punctures large and deep, mostly of first-degree 

 density, rugoso-punctate toward carina, with a tendency toward 

 grouping in rows of four and five and to the formation of polygonal 

 outlines where crowded ; secondary punctures not present ; side of pro- 

 notum with wide, polished sulca across the middle, sometimes inter- 

 rupted by low, diagonal rugae. Mesepisternum with center of disk 

 not shagreened, primary punctures very large, deep, and clearly out- 

 lined, of first-degree density ; secondary punctures well differentiated, 

 less abundant than the primaries, at least on apex of convexity ; line 

 along the posterior border impressed but not incised. Scutellum 

 with impunctate apex not as wide as largest apical primary punc- 

 tures. Metanotum with coarse primary punctures somewhat smaller 

 than the largest on the scutellum, combined area of punctures ex- 

 ceeding the area of their interspaces. Tegula obscurely shagreened, 

 with a heavy, marginal impressed line about the outside border, some- 

 times interupted or even lacking altogether. Wings with first cubital 

 mark very distinct; radial cell not equaling second cell in apical ex- 

 tension. Propodeum with the areola scarcely longer than wide, its 

 sides strongly convergent, the bordering carinae higher posteriorly; 

 median carina of areola present on upper two-thirds or less ; enclosed 

 area flat, and usually polished; disk of dorsum outside of areola 

 sparsely coarse-punctate; lower portion of sides striate, without 

 minute hairs posteriorly; posterior aspect strongly concave, with 

 median disk sharply bipunctate and median carina present on lower 

 half or less. First tergite with preapical band narrowing to a single, 

 close-set row of coarse punctures which are not sunk in a depression. 



