SPONGILLA-FLIES — PARFIN AND GURNEY 489 



(1940, pp. 254-255) as a synonym of Sisyra vicaria was not based on 

 type examination, the type being unavailable. 



Distribution (specimens examined): United States: Alabama: 

 2.5 miles northwest of Moundville (Black Warrior River). Arkansas: 

 Brasfield (Cache River). Colorado: Maple Bluff. Connecticut: 

 Portland; Tolland; Union. Delaware Water Gap (between New 

 Jersey and Pennsylvania). Florida: Alachua County (Lake Santa 

 Fe); La Belle; Lake Harney; Lakeland (5 miles east of Big Creek); 

 Punta Gorda; West Palm Beach. Georgia: Augusta; Blackshear; 

 Clyde; 6 miles west of Concord; Dal ton (7 miles south of Swamp 

 Creek); Okefenokee Swamp (Billy's Island); 5.5 miles northeast of 

 Perry (Tharpe's Pond); 5 miles southeast of Roberta (Beaver Creek). 

 Illinois: Cedarville; Gilman; Hardin; Harrisburg; Kankakee (Kanka- 

 kee River) ; Savanna. Indiana: Lake Maxinkuckee. Kansas: Man- 

 hattan. Louisiana: Forest Hill; Shreveport. Maine: Augusta; 

 Caenis; Ellsworth; North Waterboro; Orono; St. Francis; Tim Pond; 

 Warren; West Beach. Marjdand: Plummers Island; Snow Hill. 

 Massachusetts: Amherst; Framingham; Holliston; Lincoln; Mount 

 Toby; Waltham. Michigan: Cheboygan County (Burt Lake; 

 Douglas Lake); Houghton (along Keweenaw Waterway); South 

 Haven; Twin Lakes (Houghton County); White Cloud (White 

 River). Minnesota: Cook County (Pine Lake); 22 miles north of 

 Duluth (Cloquet River) ; Houston County (Mississippi Bluff) ; 

 Kawishiwi River; St. Louis County; Stillwater; west of Tower 

 (Pike River); Wabasha. Mississippi: Natchez. Missouri: Hol- 

 lister. New Hampshire: Bennington; Franconia; Squam Lake. 

 New Jersey: Atsion; Riverton; Weymouth. New York: Clayton 

 (Bluff Island); Hagaman; Hamburg; Hawkinsville (Black River); 

 Hudson Falls; Ingham Mills; Juanita Island (Lake George); Kinder- 

 hook; Lima; Middleville; Milford Center; Mount Marcy (alt. 4,000 

 ft.); North Blenheim; Ogdensburg; Old Forge; Saranac Inn; West- 

 chester County. North Carolina: Aberdeen. Ohio: Put-in-Bay 

 (Lake Erie, South Bass Island). Oklahoma: Broken Bow; Grant; 

 Sayre; Sherwood. Texas: Dallas County; Goliad. Vu-ginia: Mills- 

 ville (Milnesville ?) ; Mount Vernon. Wisconsin: Merrill (Wisconsin 

 River); Palmyra (river outlet of Spring Lake); Sayner (Plum Creek). 

 Canada: Ontario: Biscotasing; Britannia; Burks Falls; Go Home 

 Bay (Flat Rock Falls; Land Run Island); Honey Harbor; Maitland; 

 Norway Point (Lake of Bays); Ottawa; Pelee Island; Waubamick. 

 Quebec: Coteau du Lac; Gavreau Lake; Knowlton; Ste. Agathe des 

 Monts; Vaudreuil. 



The adults examined were collected from March 31 to October 10. 



Northern females from Maine, Massachusetts, and New York had 

 wings averaging 0.4 mm. longer than those of females from Florida 



