16 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



high, more than twice as high behind as in front, the anterior and 

 porterior face declivous and nearly flat; from above two and a half 

 times as long as broad, slightly constricted behind and very strongly 

 so in front. Gaster and legs long and slender. 



Very feebly shining. Mandibles more shining, coarsely, though 

 shallowly, and sparsely punctate. Clypeus wath irregular, longitudi- 

 nal striae, the head and body cribrately punctate, the epinotum 

 rugosely and densely punctate and in addition with transverse 



-LEPTOGENYS (LoBOPELTA) IMPERATEIX, new SPKCIES. WOEKER. 



a, Thorax axd petiole ; h, head ; c, petiold from above. 



itriolae, especially noticeable on the declivous portion. Appendages 

 rather densely, shallowly punctate and more shining than the rest. 



Head and body with exceedingly sparse, long, erect hairs and short 

 semirecumbent hairs which are moderately abundant on head and 

 thorax and more dense on the gaster. Appendages with scattered 

 erect hairs and abundant, shorter semirecumbent ones. 



Color black, w^ith a purple reflection, which is especially rich and 

 deep on the sides of the compressed, smooth, anterior part of the 

 petiolar node ; mandibles, f unicules, trochanters, tips of femora and 

 tibiae, the tarsi and apex of gaster reddish brown. 



Female. — Length 10 mm. 



