378 PROCEEDINGS OF THE NATIONAL MUSEUM vol.88 



each interspace with a row of conspicuous, erect, broad, scale- 

 like setae; foretibia (fig. 18, ;) with 6 long, slender teeth on 



outer margin penicillatus Bruck (p. 395) 



Pronotum procurved or emarginate at base, without a pencil of 

 long setae; elytra with the serrate anterior margins forming 

 a continuous line ; each interspace with median row of scale- 

 like setae, shorter and inconspicous ; foretibia with stout teeth 

 on outer margin (fig. 18, k-n) 12 



12. Black, almost exactly twice as long as wide, scales and setae 



mostly piceous with fewer cinereous scales; antenna (fig. 

 17, n) with club very large, more than twice as long as wide, 

 as long as f unicle and scape together ; pronotum with asperi- 

 ties reduced to granules ; elytra with marginal serrations sup- 

 plemented by a row of 4 teeth just behind margin, 2 on each 

 elytron; striae weakly impressed; foretibia (fig. 18, k) with 



8 or 9 teeth on outer margin mexicanus, new species (p. 397) 



Reddish brown, less than 1.85 times as long as wide, clothed 

 mostly in cinereous scales with a few fulvous ones; antennal 

 club rather large, broadly oval, less than 1.6 times as long as 

 wide, shorter than funicle and scape together ; pronotum with 

 asperities slender, but high and sharp; elytra with marginal 

 serrations supplemented or not by a second row ; striae dis- 

 tinctly impressed 13 



13. Antennal club (fig. 17, o) 1.58 times as long as wide; pronotum 



with scales nearly uniformly cinereous; each elytron with a 

 row of 7 or 8 teeth on anterior margin and a single tooth behind 

 this row; foretibia (fig. 18, I, m) with 7-9 teeth on outer 



margin braziliensis, new species (p. 398) 



Antennal club (fig. 17, p) 1.33 times as long as wide; pronotum 

 with cinereous scales at sides and behind, and fulvous ones 

 on most of disk ; each elytron with a row of 8 teeth on ante- 

 rior margin and no supplementary ones; foretibia (fig. 18, n) 

 with 4 short, stout teeth on outer margin insularis, new species (p. 400) 



RENOCIS PAKKINSONIAE, new species 

 FiGUBES 17, 6, c; 18, a, 6 



Female. — Reddish brown, with most of scales small and with very 

 coarse, erect, nearly white setae ; 1.77 to 2.43 mm. long, holotype 2.2 mm. 

 long, 1.7 times as long as wide. 



Frons with epistoma subcarinate, shining in median line, with 

 margin produced into a sharp median point, and with a fringe of 

 nearly white slender setae, covering basal half of mandibles; arcu- 

 ately, transversely impressed above epistoma, with impression 

 widened in the median area to form a broad, short, shallow concavity 

 between eyes, not strongly elevated at sides and above; surface red- 

 dish brown, moderately shining, very finely punctate, with interspaces 

 very finely reticulate-granulate, with a few low granules at the sides 

 and above; surface partly concealed by moderately coarse, light 

 cinereous hairs, those at the sides and above being slightly more 



