168 BULLETIN OF WISCONSIN NATURAL HISTORY SOCIETY. VOL. 1. NO. 3. 
4. Pipiza femoralis, Loew. Rare, i d and i 9 taken in May 
on the flowers of Ribes cynoshati, L. 
Previously recorded from Pennsylvania and Illinois. 
5. Pipiza pistica, Will. Rare, i cJ^ and 2 ? taken in May and 
September. One of these specimens was obtained from 
the flowers of Agastache scrophulariaefolia, (IVilld'.) 
Kuntze, and another one from the flowers of Solidago 
I Canadensis, L. 
Described from 2 9 specimens, captured in Con- 
necticut and also recorded from Illinois. 
6. Chrysogaster pulchella, Will. Rare, i 9 taken in June on 
the flowers of Angelica atro purpurea, L. 
Previously recorded from the New England States 
and Canada. 
7. Chrysogaster nitida, Wied. Although not common, it is the 
species of Chrysogaster generally observed in our neigh- 
borhood. From June (on umbels of Thaspiuni trifo- 
Uatum aureum, (Nutt.) Britt.). to October (on flowers 
of Hamainelis Virginiana, L.). 
Occurs in South America and North America and 
has been recorded from the Atlantic States, Illinois and 
Kansas. 
8. Chrysogaster pictipennis, Loew.' Rare. From May (on cat- 
kins of Salix lucida, Mnhl.) to July (on flowers of Soli- 
dago serotina, Ait.). 
Has been recorded from the Atlantic States, Illinois 
and Nebraska. 
9. Chilosia cyanescens, Loew. Not common. 7 cJ* 
specimens and a single ? taken in May and June on 
the flowers of Uvularia grandiHora, Smith, and Caltha 
palustris, L., mostly on the latter. 
Previously reported for Connecticut, New Hamp- 
shire and Illinois. 
10. Melanostoma obscurum, Say. Not rare. From April (on 
catkins of Salix discolor, Mnhl.) to October (on flowers 
of Aster cordifolius, L.) 
Has been recorded from the Atlantic States and 
Illinois. 
11. Melanostoma mellinum, L. Rarer than the preceding. Has 
been captured in April (on catkins of Salix discolor, 
Mnhl.) and May (on flowers of Valeriana ednlis, Nntt.) 
Inhabits Europe and North America and has been 
recorded from the Atlantic and Pacific States, Kansas 
and Illinois. 
