8o OHIO BIOLOGICAL vSURVEY 



1 M. fuscipennis Macquart. Six specimens taken at Cincinnati 

 (Dur}') (Fig. 20I, 204, 206, 230 j. 



2 M. tristis Loew. Eight specimens taken at Cincinnati (Dury) 

 (Figs. 202, 205, 207). 



M. ^aurifex Wied. (Philadelphia), '^-a2ir2dentus Fab. (Pa., Car.) 

 ^^-j?tegalogaster Snow , (Pa., Va., N J., Col.) and *;7(/7/r.i- Macq. (Pa., La.,) 

 also seem likely to be taken in Ohio. Description of megalogaster by 

 Snow in Kans. Univ. Quart. I. 34; the others are described by Williston, 

 Synopsis, pp. 9-12. 



Callicera Panzer 



*C. johnsoni Flunter (Pa., N. C), 



Chrysotoxum Meigeu 



1 Lateral margin of third abdominal segment yellow; second and third abdom- 



inal arcnate yellow bands only interrupted by a line laterale 



Lateral margin of third segment not all yellow; second and third arcuate 

 bands distinctly interrupted 2 



2 Black spot of the fifth abdominal segment inverted Y — shaped 



^ventricosum Loew (Can., D. C, Ariz., N. J. ) 



Black spot of the fifth abdominal segment inveited V — shaped 



*pubescetis Loew (111., N Y., Mich. Va., N. J.) 



3 C. laterale Loew. One female, Medina, one male, Ira, August. 



Fig. 241. 



Chrysogaster Meigen 



1 Base and tip of tibiae, or at least first two joints of tarsi, yellow or yellowish- 



red; last section of fourth longitudinal vein rectangular; antennae elongate. 2 



Legs wholly black; last section of fourth vein curved or bent; third joint of 



antennae rounded, nearly as broad as long, front of female strongly rugose 



nigripes 



2 The last section of the fourth vein joins the third beyond the tip of second 



vein, rectangular, with a stump of a vein in the middle; second joint of 



antennae nearly as long as the third; eyes with linear markings nitida 



The last section of fourth vein joins the third opposite or before the tip of the 

 second ; disk of abdomen opaque 3 



3 Abdomen broadly oval; wings with browinsh clouds pictipennis 



Cross-veins of wings not clouded 



*p!ilc/iella \W\\\&i. {^\\c\\. N. H., Conn., Can., N. J.) ( Fig. 247) 



4 C. nigripes T/oew. One male, Columbus, four females, Columbus, 

 Hinckley and Ft. Ancient; last of May to first of August. (Figs. 209, 245.) 



