THE SYRPHIDAE OF OHIO 83 



16 C. capillata Loevv. One male, Columbus, April 23. 



17 C. comosa Loew. One female, ColumbUvS, Ma}' 13. 



18 C. pallipes Loew. One female, Vinton, Early June. (Fig. 243.) 



19 C. trislis Loew. One male, Hinckley, August i. 



Chalcomyia Williston 



20 Chalcomyia aerea Loew. Three males, one female, Cincinnati, 

 Columbus, Georgesville ; late April, early May. One male with rat-tailed 

 puparium bears this label, "Pupa taken under bark, Columbus, Ohio, 4-11- 

 02." (See Part II, p. 63, Figs. 203, 212.) 



Myiolepta Newman 



1 Face on the sides below with a large luteous spot, third joint of antennae 



ovate strigilata 



Face without a luteous spot below 2 



2 Legs partly yellow, abdomen black .... nigra 



Legs partly yellow, abdomen with luteous or yellow spots at the base 



varipes 



2 1 M. nigra Loew. Two males, two females, Hinckley, Ft. Ancient; 

 mid- June and early August. 



22 M. varipes Loew. Two males, two females, Columbus, San- 

 du-sky, Ft. Ancient, Hinckle}-; mid-June to earh^ August. 



23 M. strigilata Loew. Five specimens, Cincinnati, May, 1 901. A 

 male, Columbus, May 13, resembles M. strigilata Loew but lacks the 

 luteous facial spots and has the eyes separated b}- the width of two and a 

 half facets. Length 5.5 mm. Blackish-greenish, moderately shining, 

 clothed with .short, rigid, apprcssed, yellowish-white pile. Vertical tri- 

 angle black, shining, long. Frontal triangle and face thickly clothed 

 with whitish pollen and pile except for a brown spot above the antennae. 

 A black .spot on tubercle and thence to oral margin, and the cheeks; first 

 two joints of antennae dark brown, third joint light ferruginous, ovate, a 

 little longer than broad, arista concolorous. Legs and wings as in M. 

 strigilata. Tip of marginal cell somewhat dilated into sub-marginal cell. 



Baccha Fabricious 



1 Abdomen distinctly narrowed toward the ba.se ; elongate, more or less club- 



shaped or spatulate 2 



2 Third joint of the antennae elongate oval, obtusely pointed; face verv 



prominent clavata 



Third joint short oval, obtusely rounded; face not prominent 3 



