320 Trans. Acad. Sci. of St. Louis. 



Sphecodes clematidis. 



g. Black, first four segments of abdomen red. Head as 



broad as thorax ; face closely punctured, vertex and clypeus 

 more sparsely punctured; occiput transversely striate ; mandi- 

 bles bidentate, rufous at apex; flagellum dull ferruginous; 

 mesonotum and scutellum shining, with rather sparse punc- 

 tures, especially on the disc; metathorax coarsely reticulated, 

 disc with semicircular inclosure; wings slightly clouded, 

 more hyaline at base and apex ; uervures and tegulae testa- 

 ceous, stigma dull ; second submarginal cell not narrowing 

 above; abdomen shining, almost impunctate, segments 2-4 

 finely and closely punctured, fifth more coarsely punctured; 

 apical margins of first four segments shining and impunctate, 

 slightly depressed. Length 8 mm. 



£. — Eesembles the female ; a little more closely punctured ; 

 third joint of antennae little longer than second, fourth as long 

 as second and third together and equaling following joints ; 

 inclosure of metathorax poorly defined ; second submarginal 

 cell more narrowing above ; first two abdominal segments 

 yellowish red, third partly so, remaining segments black. 

 Length 6 mm. 



Illinois ; one £, one female specimen. 



Somewhat resembles S. ranunculi, but is less slender, more 

 sparsely and finely punctured, second submarginal cell not 

 narrowing above, abdomen black at tip, and with second seg- 

 ment not depressed basally. 



Sphecodes ptcnanthemi §. 



Head and thorax black, first three, or more, segments of 

 abdomen red; head broad, closely and finely punctured, 

 clypeus black or dull ferruginous, with sparse coarse punc- 

 tures, labrum semicircular, entire, testaceous ; mandibles bi- 

 dentate or simple, honey yellow or rufous at base, black at 

 tips; flagellum dull ferruginous, more or less testaceous be- 

 neath, mesonotum shining, sparsely and rather finely punc- 

 tured, as well as scutellum ; metathorax truncate, disc short, 

 with poorly defined inclosure presenting rather fine irregular 

 longitudinal rugae; below the metathorax is reticulated, but 

 not coarsely so, upper part of truncation with a triangular 



