8o BROOKLYN MUSEUM SCIENCE BULLETIN 3. 3. 
Nova Scotia: Halifax (Perrin, Ent. Branch, Ont.). 
Iowa: Clear Lake, July (Wickham) ; Cedar Rapids (Wickham). 
Minnesota: Lake Bethel, Linwood, July (Kubicheck, Biol. Surv,). 
Michigan: Washtenaw Co., June (Hubbell); Cheboygan Co., August 
(Hatch); Macatawa Beach, June (Wolcott). 
Wisconsin: Bayfield (Knab coll.); Tenderfoot Lake, July (Marshall). 
Illinois: "N. 111." (Minn. Univ.). 
Kansas: Cherokee Co., August (Hungerford and Beamer). 
Missouri: St. Louis Co., September (Bock). 
New Hampshire: Manchester (coll. Wickham); Claremont, July 
(Engelhardt). 
Massachusetts: Chicopee, September (Knab); Forest Hills, October 
(Parshley) ; Framingham, June (Frost) ; Bedford, September (Frost). 
Connecticut: South Meriden, August (Johnson). 
New York: Yaphank, Long Island, June, July, September (Engelhardt); 
Wading River, Long Island, June (Shoemaker, Schott) ; Wyandanch, 
Long Island, September (Schaeffer) ; Staten Island, June (Davis); 
Long Lake, Hamilton Co. (Davis) ; Carmel, August (Squire) ; Saranac 
Lake, September (Shoemaker) ; Adirondacks, August (Davis) ; Brant 
Lake, Huron, August (Doll). 
New Jersey: Budd's Lake, September (Bischoff). 
Pennsylvania: Baoba, July (Wenzel). 
From all reliable records this common species is generally found 
on the leaves and flowers of the white water lily but Mr. Wenzel found it 
at Bamber, N. J., on the leaves of the white and yellow lily and in Pennsyl- 
vania on Brasenia and says that wherever the latter plant is growing 
near Castalia this species gives preference to the former plant. 
This species varies a good deal. The larger specimens, which are 
from British Columbia, Iowa, Minnesota, Michigan and Illinois, have 
the posterior femora, especially in the males, relatively more strongly 
incrassate than those of medium or small size. The anterior tooth of 
the hind femora is often very small, tubercle-like and only visible from 
an internal view, in the smaller females the ridge or denticles behind 
the tooth are occasionally scarcely visible even when viewed internally. 
The variation in color is indicated in the description. The anterior 
angles of prothorax are apparently always distinct and somewhat slightly 
prominent, tubercle-like. The punctuation of prothorax is generally 
fine and sparse, occasionally the punctures are more numerous but never 
close nor dense and the lateral tubercles are more or less distinct. The 
relative length of the third antennal joint is also subject to variation and 
