LYMN-ZIDZ OF NORTH AMERICA. 189 
Canadian area of this zone. It is exceedingly doubtful if this species 
really lives in any area south of the Transition zone. Referring to 
its distribution in relation to the forest areas, we find that its center 
of dispersal is in the coniferous regions of the northern United States 
and Canada. In the southeast and south of this area it extends into 
the region of deciduous forests and on the southwest into the prairie 
region of the Mississippi Valley. Its range is probably between the 
41st and 60th degrees of north latitude and between the 73rd and the 
100th degrees of west longitude. Lord* records megasoma from Lake 
Osoyoos, British Columbia, but this is undoubtedly a case of misidenti- 
fication, as the species has never been reported so far west, except in 
this instance. 
RECORDS. 
UNITED STATES. 
Iowa: Winnebago and adjoining counties (Keyes) ; pond near Forest City, 
Winnebago Co. (Shimek). 
LAKE Supertor: Lake Superior (Newberry; Chicago Academy of Sci- 
ences). 
MassacuuseTts: Massachusetts?” 
Micuican: St. Joseph River, Berrien Co. (Smith. Coll.) ; Drummond's 
Island and St. Mary’s River, Chippewa Co.; Lake Huron; Higgins River and 
Marl Lake, Roscommon Co.; Green Bay, Menominee Co. ; Isle Royale (Walker). 
Minnesota: Lake Minnetonka, Hennepin Co. (Miss A. A. Abbott) ; 
Elk River, Sherburne Co. (Bailey); St. Louis and Lake Counties (Grant) ; 
Duluth, St. Louis Co. (Leidy); Minnesota (Chicago Academy of Sciences). 
Onto: Alliance, Mahoning River, Stark Co. (Kirtland; Sterki; Ulrich). 
Vermont: Burlington, Crittenden Co. (Smith. Coll.) ; near Lake Cham- 
plain (Hudson; Marshall; Stimpson). 
Wisconsin: Tomahawk Lake and Wisconsin River, Oneida Co. (Baker) ; 
Moles Creek, between Two Rivers and Two Creeks, Manitowoc Co. (C. E. 
Brown; C. H. Chadwick) ; Lake Koshkonong, Jefferson Co. (Chadwick) ; West 
Superior (Conrad); West side Green Bay (Crawford; Wetherby) ; St. Croix 
River, Douglas Co. (Dr. S. Grenicher) ; Oconto, Oconto Co. (Geo. T. Mars- 
ton); Green Bay (Smith. Coll.) ; Oconto, Oconto Co., in marsh -(Mrs. EXC 
Wiswall). 
BRITISH AMERICA. 
KEEWATIN: Vermilion Lake to Echinamish Lake, in lat. 57° n., between 
the Nelson and the Height of Land (Bell) ; Echinamish River (Bell; Hanham). 
ManitosA: Bois Blanc Lake (Bigsby, Say). 
Ontario: Pic River, Lake Superior (Agassiz); Vermilion Lake, Rainy 
River District; Creek near Hawksbury, Prescott Dist. (Bell) ; Bonnechere River 
(Billings) ; Meech’s Lake, near Ottawa, Carleton Dist. (Latchford) ; Georgian 
1Nat. in. Brit. Col., II, p. 356. 
2A tray of this species marked Massachusetts (Stearns’ collection, No. 
63460) is in the collection of the Smithsonian Institution, but the locality 
needs confirmation. No authentic record has been seen from any New England 
state excepting Vermont. (Lake Champlain. ) 
