106 INSECUTOR INSCITI.^ MENSTRUUS 



Spots on the sides of abdominal segments 1 to 3 and a minute 

 spot on each side of the fourth segment; head with rather 

 coarse crowded punctures, those on clypeus fine ; head longer 

 than broad, the inner orbits subparallel, the facial quadrangle 

 subquadrate ; mesoscutum as long as width at front end of 

 tegulse, closely and coarsely punctured ; scutellum with similar 

 punctures ; tegulas dark brown ; wings dusky ; second recurrent 

 beyond apex of second submarginal cell ; legs brown ; abdomen 

 closely, rather coarsely, punctured, segments 2 to 6 strongly 

 constricted at base. 



Type locality, Kansas. 



Type, Cat. No. 20612, U. S. Nat. Mus. 



Described from one female without further data. Similar to 

 lateralis but easily distinguished by the longer head, subparal- 

 lel inner orbits, longer mesoscutum, and strongly constricted 

 abdominal segments. 



Stelis diversicolor, new species. 



Male. — Length about 7 mm. (but apex of abdomen in- 

 curved). Black, shiny, immaculate, with whitish pubescence, 

 that on abdomen making thin bands on apical margins of seg- 

 ments, head closely and coarsely punctured, the punctures of 

 the clypeus finer and closer, those on vertex coarser and not so 

 close ; punctures of mesoscutum coarser than those on vertex, 

 close ; those on scutellum somewhat more separated ; no axillar 

 teeth ; row of pits on propodeum interrupted medially ; wings 

 dusky, more distinctly so along anterior margin ; second recur- 

 rent vein received beyond apex of second submarginal cell ; 

 tegulse dark ; legs black ; abdomen with segments 1-3 rather 

 finely and closely punctured ; segments 4-6 successively more 

 closely and coarsely punctured; seventh rather finely rugoso- 

 punctate. 



Type locality, Kerrville, Texas. 



Described from two specimens collected April 11, 1907, on 

 ( ?) Tetraneuris linearifolia by F. C. Pratt. 



Type, Cat. No. 20613, U. S. Nat. Mus. 



In habitus this species, which is the first black immaculate 



