276 PROCEEDINGS OF THE ACADEMY OF ( [1897. 



rior half of dorsulum bearing a medial longitudinal carina, which 

 does reach apex, however ; middle segment rounded, shallowly sul- 

 cate down middle, crossed by somewhat irregular, coarse rugae or 

 folds ; legs tolerably spinose, the serration of hind tibiae distinct ; 

 longer spur of hind tibise less than one-third of the length of first 

 hind tarsal joint ; ventral abdominal segments sparsely punctured, 

 becoming more closely and coarsely so on the apical segments, the last 

 one almost scabrous, second ventral with two large widely separated, 

 teat-like tubercles ; wings black, with bluish reflection, the superiors 

 subhyaline at apex. Length 28 mm. 



Santarem. One specimen. Allied to bituberculatus, but clypeus 

 not incurved, dorsulum carinated, tips of superior wings pale, eyes 

 narrowed more to top, etc. 



Salius (Mygnimia) dumosus Lep. 



Three females. Rio de Janeiro and Chapada in November. The 

 abdominal tubercles are small and blunt and comparatively approx- 

 imate in this species. 



Salius {Mygnimia) perpunctatus n, sp. 



9 . — Black ; flagellum beneath from the second, the last seven 

 joints entirely, orange-yellow ; head with long sparse, black hairs ; 

 clypeus rather longer than in bituberculatus, with a few very coarse 

 punctures anteriorly, the fore margin distinctly incurved ; front 

 shining distinctly impressed, and with a short oblique furrow on 

 each side near the eye ; eyes not strongly converging, barely separ- 

 ated from base of mandibles, the space between them at top some- 

 what greater than the length of the fourth antennal joint ; space be- 

 tween hind ocelli equal to about half of that between them and eyes ; 

 pronotum sharply angulate behind, transversely and obliquely de- 

 pressed just before its hind margin ; dorsulum subcarinated down 

 middle, most distinctly on posterior portion ; scutellum prominent, 

 with two or three very large punctures ; middle segment transversely 

 striated, with a broad shallow further down middle, on each side of 

 which the upper surface is depressed ; legs strongly spinose, the ser- 

 ration of hind tibia? very strong; longer spur of hind tibise equal to 

 less than one-third of the length of the first hind tarsal joint ; fore 

 coxae with coarse scabrous punctures; abdomen with tolerably dis- 

 tinct, sparse, punctures above, those of the ventral surface much 

 coarser, the second ventral segment with two widely separated 

 obtuse tubercles which slope toward the sides ; apical margins of seg- 



