22 * THE CANADIAN ENTOMOLOGIST. 



16. Face of 4 yellow, J black ; abdomen with a wide maculated or 



indented lateral margin ; variable maculosa^ Lw. 



Face of (J $ yellow, with a longitudinal line of black ; abdominal 

 markings transverse, the same in both sexes ; eyes of 9 

 glabrous badius, Walker. 



17. Abdomen: bands on the second segment interrupted, the third and 



fourth contiguous 18. 



Abdomen : fourth and fifth segments only with wide yellow 



bands inuiabilis, Fabr. 



18. Scutellum ^ black 19. 



Scutellum $ ? yellow consta?ts, Lw. 



19. Abdomen: bands on the second and <ihird segments 



contiguous Gerstackeri, Bell. 



Abdomen : second segment with two large spots . . . bimaadata, Bell. 



List of species of Stratiomyia studied. 



1. S. melanosloma^ Lvv. 



McHenry, 111. July. 



2. .5". lativentris, Loew. 



Chicago, 111. (July) ; Canada. 



3. S. normula, Loew. 



Chicago, 111. (May) ; Colorado. 



4. S. norina, Wiedemann. 



Indiana ; McHenry, 111. (June). 



5. S. unilimbata. Loew. 



McHenry, 111. (July) ; Milwaukee, Wise. (June) ; Berkeley, Col. 

 (May). 



6. S. Meigenii, Wiedemann. 



Chicago, 111. ; Austin, Texas ; S. Dakota. 



7. 6". apicida, Loew. 



Algonquin, 111. (June) ; Austin, Texas (April). 



8. S. disca/is, Loew. 



Chicago, III. May. 



9. 6". badius, Walker. 



McHenry, 111. June and July. 



10. S. constans, Loew. 



Austin, Texas. April to October. Common. 



