1930 ] 
New N europteroid Insects 
227 
yellowish brown spots and patches, anal margin brown, with 
a few pale spots, a white mark on thyridium, just before 
the posterior anastomosis. Fore wings rather narrow, elon- 
gate, discal cell a little longer than pedicel. 
Male genitalia have very short processes, the superior 
lobes are very pale, and not toothed, nor darkened within. 
In the female the superior plate has lateral spurs and a 
broad median lobe which is blackened beneath on the sides. 
Expanse 20 to 22 mm. 
From Winnipeg Lake (Robt. Kennicott). 
Limnephilus sackeni sp. nov. 
Fig. 6. 
Yellowish, abdomen more dull brown, spines on legs 
black, but a few inner ones near base of front tibiae are 
yellowish; hair yellowish, some black on sides of face 
and under antennae. Wings yellowish, fore wing with 
brown marks on plan of others of this section, the anal 
margin brown, streak through middle of wing, broken by 
the oblique hyaline spot beyond middle, region before and 
beyond anastomosis hyaline, surrounded with brown, which 
extends above to tip and below to the outer angle, stigma 
dark. Legs very slender, basal joint of tarsus of front 
legs about one-half of the tibia, but it is not equal to second 
plus third joint. 
Male genitalia has the superior appendages rather long, 
reaching beyond lower appendages which are slender, the 
intermediate appendages are curved and much more slender 
than usual. 
Expanse 31 mm. 
From Sault de Ste. Marie River, 8 Sept. (0. Sacken.) 
Acronopsyche gen. nov. 
Legs slender; no spines on under side of last joint of 
hind tarsi; spurs 1, 3, 3,; tibia of front pair with a few 
spines. Basal joint of antennse moderately elongate, 
beyond barely crenulate; a group of two or three macro- 
