THE SYRPHIDAE OF OHIO 89 



Thorax not at all black (female); reddish-yellow; abdomen 3-ellow with black 

 markings *kceniana Willst. (Phila., N. H., N. J.) 



Thorax entirely reddish (male); abdomen entirely reddish, shining 

 campanulata Robertson (111. ) 



51 S. campanulata Robertson, One male, Cincinnati, June 23, 1900 

 (Dury). 



52 S. rufiventris IvOew. Tliree specimens, Vinton; mid-June. 



53 S. lobata IvOew. Three females, Medina, Vinton, Cincinnati 

 mid-June and mid-August; one male Hinckley, last of July. 



Neoascia Williston 



54 N. globosa Walker. One female has the front and thorax black 

 without any aeneous, the abdominal spots triangular, with apex towards 

 the sides and the four front tibiae and femora with distinct narrow dark 

 rings. Five females and an equal number of males, Columbus, Akron, 

 Ira, Hawkins; mid-May to mid-August. 



Rhingia Scopoli 



^"^ R. nasicaSa}'. Seven specimens, Medina, Akron, Ira, Wauseon 

 mid-Jul}- to early September. One male bears the label "on horse." 

 (Fig. 227.) 



Brachyopa Meigen 



56 B. vacua Osten Sacken. One male, Columbus, May 6, '"ow Prunus 

 serotina." One female, Cincinnati, April 30, 1904 (Dur}-). 



Volucella Goeffrey 



1 Thorax and abdomen very thickly pilose, that on the thorax and pleurae wholly 



yellow; face much excavated below the antennae, black or chestnut; arista 

 very long and densely plumose; second segment of the abdomen yellow on 



the sides; wings with dark brown spot; large species evecta 



Thorax and abdomen not densely pilose 2 



2 Second vein bent into the sub-marginal cell near the end; wings sub-fasciate 



with brown; cheeks with a narrow yellow stripe; thud joint of antennae not 

 notched above, face produced downwards; pleurae with five or six yellow 



spots; yellow abdominal bands entire; small species fasciata 



vSecond vein not bent into the sub-marginal cell near the end, wings hyaline 

 with a faint brown spot at the tip of the auxiliary vein, thorax and abdo- 

 men resplendent coppery, green or violet, the base of the latter yellow or 

 translucent vesiculosa 



57 V. evecta Walker. Three specimens, Columbus, Ira, Kent; June, 

 July. (Fig. 222.) 



