JULY, 1900. GRAENICHER— THE SYRPHIDAE OF MILWAUKEE COUNTY. 171 
28. Sphaerophoria cylindrica, Say. Abundant from May (on 
flowers of Mitella diphyUa, L.) to October (on flowers 
of Hamamelis Virginiana, L.) 
Previously recorded from the New England States, 
Illinois, Minnesota and Washington, as also from Can- 
ada and Nova Scotia. 
29. Neoascia globosa, Walk. Rare. A few specimens taken in 
May (on flowers of Amelanchicr Canadensis, (L. ) 
Medic, and June (on flowers of Unifoliiun Canadense, 
{Desf.) Greene). 
Has been recorded from the New England States 
and Oregon. 
30. Neoascia distincta, Will. This is a very rare species. The 
only specimen in my collection is a ? , captured in May. 
This species was described from 2 ? specimens col- 
lected in Massachusetts and has not, to my knowledge, 
been recorded from any other part of the United States. 
31. Baccha clavata, Fabr. (B. Babista, Walk.) Not frequent. 
From June (on umbels of Thaspiiun trifoliatum aureiim, 
{Niitt.) Britt.) to August (on flowers of Verbena itrti- 
cifolia, L.) 
This is a southern species and has been previously 
recorded from Mexico, Florida, Georgia, Arizona, Cal- 
ifornia and Nebraska. 
32. Baccha fuscipennis, Say. Commoner than the preceding, 
from June to August in shady woods. I have never 
seen this species on flowers. 
It extends its range southward as far as San 
Domingo and Guadeloupe and has been reported for the 
New England States, Ohio, Illinois and Kansas. 
33. Baccha aurinota, Harris. This is the rarest of our species 
of Baccha. 2 d specimens were obtained by me 2 years 
ago in the first week in September, visiting the flowers 
of Solidago Canadensis, L.; an additional was taken 
last season, at the same time of the year by Mr. Paul 
Dernehl. 
Previously recorded from Canada, a few Eastern 
States, Ohio and Indiana. 
34. Rhingia nasica. Say. Rare. A single taken in August, 
visiting the flowers of Inipatiens hiiiora, Walt, and 2 ? 
in October on flowers of Polyninia Canadensis, L. 
Has been reported for the Atlantic States, Kentucky, 
Ohio, Indiana and Illinois. 
