r 
1947J Hydroptilidce 173 
OrthotricJiia cristata Morton 
The following records extend the known distribution 
of the species to Louisiana in the South and Minnesota 
in the North. Minnesota: St. Paul, light trap, July 14, 
1935, 3 male (A. A. Granovsky). Louisiana: Baton 
Rouge, April, 1947, 57 male (W. W. Wirth). 
Hydroptila armata Ross 
The collecting of this species in the treeless plains of 
northwestern Minnesota is a very interesting extension 
in its known range. Minnesota: Washington Co., May 
10, 1941, 5 male, 7 female (G. Kretzschmar). Crookston, 
Sept. 4, 1936, 1 male, 1 female (D. G. Denning). 
Hydroptila spatulata Morton 
This is the first definite record of the species from 
Minnesota. Minnesota: St. Paul, Ang. 1, 1934, 1 male, 
2 female, light trap (A. A. Granovsky). 
Hydroptila hamata Morton 
Ross has recorded this species from southern Mexico, 
Ontario and widely scattered areas in the United States. 
The following constitutes the first records from Minne- 
sota. Minnesota: Taylors Falls, August, 1937, 1 male 
(Carol J. Palmer). Washington Co., May 10, 1941, 1 
male (G. Kretzschmar). 
Hydroptila amoena Ross 
Known previously from Illinois and Oklahoma; the 
Minnesota record indicates a wide range for this species. 
Minnesota: St. Paul, light trap, August, 1934, 2 male 
(A. A. Granovsky). 
Hydroptila waubesiana Betten 
The species is now known to occur from the Hudson 
Bay to the Mississippi delta. The following new distri- 
butional records make this species one of our most widely 
distributed Hydroptila. Minnesota : Rum River, reared, 
March 11, 1934, 1 male, 1 female (D. G. Denning). Cass 
Lake, light trap, August 1-15, 1934, 2 male (A. A. 
