THE SYRPHIDAE OF OHIO 93 



8 Hind coxae of the male with a stout process below chrysostomus 



Hind coxae of the male not with a stout process 



'^distindus Willst. (Conn., Va., Pa., N. J.) 



72 H. bUinearis Williston. Five males, Columbus; April 28 to May 2. 



73 H. chrysostomus Wiedeman. Five males and two females, Dan- 

 ville, Medina, Sandu.sky; June 10 to July 12. 



74 H. conostomus Williston. Fourteen specimens, males and females; 

 Sandusky, Columbus, Hinckley; May 2 to July 20. 



75 H, divisus lyoew. One male and one female, Sandusky, Kent, 

 mid-June and early July. 



76 H. flavifacies? Bigot. I place here with some que.stion, two males, 

 Medina, and Sandusky; July. 



77 H. laetus Loew. One male, Columbus, mid-May; 30.specimens, 

 males and females, Sandusky, May 30 to August 21. 



78 H. latifronsl^oew. Fifteen specimens, males and females, Colum- 

 bus, Lakeville, Sandusky, Ira, Vinton; April i to October 20. 



79 H. similis Macquart. 25 specimens, males and females, Columbus, 

 Lakeville, Wauseon, Georgesville, Cleveland, Jeffenson, Ira; March 29 to 

 October 22. (Figs. 218, 219, 246.) 



Mallota Meigen 



1 Eyes pilose; more or less of the base of the abdomen with yellow pile 



posticata 



Eyes bare 2 



2 Eyes contiguous in the male; abdomen almost wholly black pilose; hind tibiae 



of the male with a stout spur in the middle (form Baiitins) or wholly 



without such spur . • • ■ cimbiciformis 



Eyes separated in the male; front of female broader than in 31. posfuaia and 

 cimbiciformis *illinoisensis Robertson (111. ) 



80 Mallota cimbiciformis Fallen. Three males all of form Baidius, 

 four females smaller; Hinckley. Medina, Sandu.sky; mid-June to Aug. 8. 



81 M. posticata Fabricius. Eight specimens, Hinckley, \Vau.seon, 

 Sandti.sky, Ira; la.st of May to last of Augu.st. 



Triodonta Williston 



82 T. curvipes Wiedemann. Two males, one female, Ca.stalia; mid- 

 July. 



Teuchocnemis Osten Sacken 



*r. /iliiratus Loew. (Pa., Conn., Mo., Quebec.) 



