390 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxi. 



with short, black htiirs and here and there a trace of silvery sericeous; 

 its lateral and postorior margins from the prothoracic lo}>e to where 

 the scutellum reaches the height of the mesonotuni behind, somewhat 

 reHexed; anterior median groove slight, broad; scutellum less closely 

 punctured, glistening, with a slight median groove, particularh* behind; 

 somewhat whitish-sericeous; postscutellum rather more closely punc- 

 tured; with a very slight median groove and with a few short hairs; 

 median segment everj^where dull black; finely, closel}' punctured; 

 thickly covered with short, whitish hairs, which at the sides and behind 

 become much longer and brownish in part; petiole pale, almost yellow 

 ferruginous, short, straight, with numerous pale yellowish hairs; its 

 length compared with that of the second hind tarsal segment and first 

 filament segment, 30: 36: 85; meso and metapleura finely, not densely, 

 punctured and with numerous black hairs of varying length: that 

 portion of the mesopleuron nearest the base of the fore wing is soiiie- 

 times dull ferruginous; at different places on the pleura are silvery 

 sericeous areas, visible only at certain angles; .sterna with the same 

 tj'pe of punctures, hairs and sericeous areas as the pleura. 



Abdomen. — Pale yellowish ferruginous, except for a few dark spots 

 varying in form and location in different specimens or absent in some 

 cases; rather long, pointed behind, rather ])road in front; the surface 

 above pale sericeous, smooth except for small punctures, few ante- 

 riorly where they are at the sides, but increasing posteriorly and 

 encroaching more on the dorsal region; they are first very noticeable 

 on the fourth plate, become coarser and more abundant on the fifth, 

 and are very prominent on the terminal plate where are also a few 

 pale vellow hairs pointing backward: the hinder margin of this plate 

 is broadly rounded, with a slight blunt median projection: ])encath 

 the color is the same as above, sometimes with irregular darker mark- 

 ings here and there; there are a few scattered coarse i)unctures on 

 each plate, chiefly a little lateral to the median line, and occasional 

 quite long pale yellowish hairs. 



^yl7UJs. — Hyaline, with a strong yellow tinge, particularly toward 

 the base; faintly fuliginous on the outer l)order; second and third 

 transverse cubital veins of the fore wing about half as far apart on 

 the radial as on the cubital vein; transverse median vein of the hind 

 wing straight, joining the median at more than a right angle; cubital 

 vein well developed l)eyond the transverse cubital; tegulfe yellow, 

 glistening, with a few scattered slight punctures. 



Legs. — Cox9B and trochanters black, the latter with a reddish brown 

 tinge, with scattered punctures and short dark hairs; the coxa? show- 

 ing a, tendenc}^ to be sericeous in places; the other segments of all the 

 legs ferruginous j'ellow, as are their spines; inner edges of the claws, 

 their tips and teeth, black; posterior tibite yellow sericeous behind, 

 their inner contour straight; fore metatarsal comb with ten (some- 



