388 PROCEEDIN'GS OF THE NATIONAL MUSEUM vol.94 



with small serrations ; surface shining ; striae deep, with rather close, 

 shallow punctures of moderate size; interspaces slightly wider than 

 striae, rugose-asperate, asperities becoming uniseriate posteriorly, 

 hairs stout, erect; declivity with striae and interspaces subequal in 

 width, with hairs as on disk and sides; posterior rim margined and 

 serrate. 



Male. — Similar to female in habitus; frons concave below, with 

 epistomal margin narrowly elevated, surface partly concealed by 

 moderate, yellow hairs, transverse elevation between bases of anten- 

 nae divided in median line by a longitudinal sulcus extending dorsad 

 into a secondary concavity, with moderately long and coarse yellow 

 setae arising from each side and directed toward median line; above 

 secondary concavity with a rather low, hill-like elevation ; frontal rec- 

 tangle 1.14 times as long as wide; antenna arising from nearly half- 

 way between eye and median line; scape with dense brush of long 

 yellow hairs. 



Type locality. — Mapiri, Bolivia. 



Hoat. — Unknown. 



Type material. — Holotype, allotype, and 1 paratype, U. S. N. M. 

 No. 56565. 



The type series was taken by G. L. Harrington in September 1925 

 at Mapiri, Department of La Paz, Bolivia. 



PHLOEOTRIBUS HARRINGTONI, new species 



Plate 17, Figubes 33, 34 



Female. — Piceous-brown, with antennae and legs lighter; 2.31 mm. 

 long, 2.33 times as long as wide. 



Frontal rectangle 0.83 as long as wide, including epistomal lobe, 

 which is longer than wide ; frons (fig, 34) convex above, transversely 

 impressed on epistoma, elevated between bases of antennae, indefi- 

 nitely impressed above; surface piceous-brown, subshining, moder- 

 ately punctured, with moderately short, semierect, cinereous hairs. 

 Eye more than three times as long as wide, with outline fusiform. 

 Antenna inserted at side very near eye ; scape and f unicle light red- 

 dish brown, club darker, with segments more than three times as wide 

 as long. 



Pronotum 1.17 times as wide as long, widest near base, posterior 

 outline bisinuate, scarcely extended in median area, posterior angles 

 rounded, sides convergently arcuate to the constriction just behind 

 the broadly rounded anterior margin, which is devoid of serrations; 

 surface moderately shining; median area with close, rather shallow, 

 moderately large punctures, with a few small granules only on an- 

 terior third, sides with low, broad asperities distributed from behind 

 the front margin nearly to base ; vestiture of rather stout, moderate- 



