150 
Bulletin Wisconsin Natural History Society. [Yol. 10, Nos. 3-4. 
ing the midges into the lake to drown in myriads. 1910 and one 
or two years before, no such wind interference disturbed them, 
and then the swarms plagued lake-side residents for a longer 
period, over a week. The early death of the adult prevents a pro¬ 
longed infestation even when westerly winds fail. 
There are earlier spring swarmings of other species, but the 
winds almost proverbially sweep away these early plagues. Mr. 
Roe suggests that the lake be stocked heavily with chub or other 
midge-consuming fish—there are plenty of shiners, bullheads, etc., 
now—and thus turn the nuisance into more profitable fisheries for 
the growing fishing interest of the region, there being a large 
local market in the important series of manufacturing cities and 
towns of the contiguous Fox River Valley. 
As regards water tanks and reservoirs, Osborn proposes to pre¬ 
vent deposition of eggs at the outset (1896a, 406-7) by “ordinary 
mosquito netting or wire gauze.” The frequent scraping of horse 
troughs (Craigin, 1899, 185) may occasionally favor farm stock, 
though no one has demonstrated the need for such care as a 
prophylactic measure against any known stock disease. 
ANNOTATED BIBLIOGRAPHY. 
In the following bibliography, works not seen by the author 
are indicated bv a *, references in the text being by author, date, 
and page. While not complete, it was made as nearly so as the 
subject seemed to merit, following Johannsen’s monographs of 
the group and the catalogs of Aldrich and Kertesz. Drs. W. S. 
Marshall and S. J. Holmes materially aided me in verifying ref¬ 
erences by placing their private libraries at my disposal, while 
Prof. J. G. Sanders, State Entomologist, greatly aided me in the 
proof. 
Note: If plumosus is listed merely, reference will say 
“Notes sp.” 
Ainslee, C. N. 
1907. Jan. Notes on the Swarming of a Species of Crane Fly 
(Trichocera bimaculata ). Can. Ent. v. 39, pp. 26-8. No. 
Chironomus cited. 
Aldrich, J. M. 
1905. A Catalog of North American Diptera. Smiths. Misc. Col- 
