1938 ] 
North American Caddis Flies 
37 
Limnephilus janus new name for 
Limnephilus minusculus (Banks), 1924, p. 439, fig. 52. 
(Colpotaulius) . Preoccupied by Limnephilus minus- 
culus (Banks), 1906, p. 120. (Stenophylax) . 
Lectotype, male. — Tolland, Colorado, Dodds. No. 14842. 
Lectoallotype, female. — Same data. 
The male genitalia, fig. 59, are distinctive. I do not believe 
that this Colorado species is the same as perpusillus Walker, 
as stated by Milne. 
Limnephilus modestus (Hagen), 1861, p. 265. ( Anabolia ) 
Lectotype , male. — Labrador, 1858, Hugo Christoph. No. 
10711. 
The differences between the genitalia of this species and 
mutatus (Hagen) are found chiefly in the cerci, fig. 65. 
Limnephilus moestus Banks, 1908a, p. 62, pi. 2, figs. 4, 8, 10, 
11 . 
Lectotype, male. — Grand Lake, Newfoundland, July 28, 
1906, O. Bryant. No. 11629. Lectoallotype, female. — Same 
data. 
A close relative of harrimani Bks., this species is distin- 
guished by the shorter cerci and less ornamented lateral 
arms of the sedeagus, fig. 83. 
Limnephilus montanus Banks, 1907a, p. 119. ( Anabolia ) 
Lectotype, female. — Mt. Katahdin, Maine. No. 11661. 
This species has been synonymized with planifrons Kol. 
and curtus Banks. Better characters in the female sex of 
this genus will have to be discovered to determine this with 
certainty. 
Limnephilus morrisoni Banks, 1920, p. 343, figs. 5, 32 and 96. 
Lectotype, male. — Reno, Nevada, 1878, Morrison. No. 
10873. Lectoallotype, female. — Sierra Nevada, 1876, 
Crotch. 
The male genitalia are illustrated in fig. 81. The generic 
assignment of this species is unsettled. 
Limnephilus mutatus (Hagen), 1861, p. 267. ( Hallesus ) 
Lectotype, female. — Labrador, Winthem. No. 10688. 
Allotype, male. — Labrador, 1865, Moeschler. 
The allotype matches the lectotype so perfectly in general 
