190 BULLETIN 66, UNITED STATES NATIONAL MUSEUM. 



3. decorata Smith (magrettiana Schmiedeknecht), Lugens, 

 Switzerland (Friese, 1893). 

 bipunctata Cresson (Opandrena). 



1. Sioux County, Nebraska, May (L. Bruner), (female); Sty- 

 lops bipunctatse Pierce (collection University of Nebraska). 



2. Milwaukee, Wisconsin, April 8, 17, (females); Stylops 

 bipunctatse Pierce (collection S. Graenicher). 



3. Park County, Wisconsin (C. F. Baker), (female); Indiana 

 (C. F. Baker), (female); Alabama (C. F. Baker), (female); 

 Stylops bipunctatse Pierce. 



braunsiana Friese, Plungarj^ (Friese, 1893), Peste (Nassonow, 



1893 a), 

 bucephala Stephens. 



1. (Perez, 1886.) 



2. Hungary (Friese, 1893). 

 carbonaria Fabricius. 



1. Egypt (female), (S. S. Saunders, 1872). 



2. Ribben, Kreis Sensburg, East Prussia, May 30 (Dr. P. 

 Speiser in letter). 



3. (pilipes Rossi), Stylops nassonowi Fierce (melittse Nas- 

 sonow), (Nassonow, 1893 a; Perez, 1886). 



4. (pilipes Rossi), Schwerin and Zerbst, Germany (Friese, 

 1893). 



chalybea 'Perez = suerinensis Friese. 



chrysosceles Kirby (Smith; Perez, 1886; Schmiedeknecht, 1884; 



Chitty, 1902)/ 

 cineraria Linnaeus (Sagemehl, 1882). 

 cingulata Fabricius (Perez, 1886). 

 clarkella Kirby (Smith; Perez, 1886). 

 claytonise Robertson (Tracliandrena) . 



1. Thomasville, Georgia, March 21 (M. Hebard), (female), 

 Stylops claytonise Pierce. 



2. Carlinville, Illinois (Robertson, 1891). 

 collinsonana Kirby = proximo Kirby. 



combinata Christ, Fiume, Hungary; Straussburg, Germany 

 (Friese, 1893; Perez, 1886). 



commoda Smith (corni Robertson), Milwaukee, Wisconsin, June 

 2, 17 (female); Stylops cornii Pierce (collection S. Graenicher). 



congerens (Schmiedeknecht) Nassonow = congruens Schmiede- 

 knecht. 



congruens Schmiedeknecht (congerens Nassonow), Fiume, Hun- 

 gary (Friese, 1893; Nassonow, 1893 a). 



conjuncta Smith = bimaculata Kirby. 



convexiuscula Kirby = afzeliella (stylopized) convexiuscula Kirby. 



corni Robertson = commoda Smith. 



