Fluke—SyrpMdae of Wisconsin. 
239 
N^oascia Williston 
Abdomen scarcely narrowed at the base, uniformly bright metallic, 
antennae longer .. distincta 
Abdomen distinctly narrowed toward the base, usually with yel¬ 
lowish or reddish spots or bands, antennae shorter, .globosa 
79. N. globosa, Walk. Pierce, Milwaukee, Racine, Sheboygan, 
Washington, and Dane Counties. Mostly early spring. 
Especially numerous among grass sweepings near sewer 
drains. 
80. N. distincta Will. One specimen from Milwaukee County. 
Rhingia Scopoli 
81. R. nasica Say. Vilas, Price, Pierce, Milwaukee, Polk, Wash¬ 
ington, Marathon, Dane, and Dunn Counties. June and 
September, mostly at the latter date. Figure 58. 
Brachyopa Meigen 
82. B. notata 0. S. One female from Dane County, June 6, 1918. 
Volucella Geoffroy 
Thorax heavily pilose; non-metallic species. evecta 
Thorax nearly bare; brightly metallic-colored species_ vesiculosa 
83. V. evecta Walk. Washington, Milwaukee, Marathon, and 
Dane Counties. Figure 60. 
84. V. vesiculosa Fabr. Milwaukee and Dane Counties. One 
specimen taken from a wasp’s nest, a species of Crabro.- 
Graenicher. 
In the Milwaukee Public Museum there are specimens of 
V. pusilla Macq. labeled as taken in Milwaukee County. 
Graenicher tells me that without doubt the specimens are 
mislabeled. This species occurs in Cuba, Florida, and 
Porto Rico. 
Sericomyia Meigen 
Second abdominal segment with two yellow dots, or wholly black; 
hind femora of male considerably thickened.. militaris 
Second abdominal segment with an interrupted yellowish fascia, 
the bands oblique . chrysotoxoides 
