125 Journal New York Entomological Society. [^'°'- -^-'^^v. 
Rostrum and palpi dark brown. Antenna; of the male not so elongated 
as in typical Trichocera, densely hairy, dark brown, the basal segments some- 
times yellowish but more often uniform in color. Head small, depressed, 
light brown. 
Pronotum prominent, the scutellum conspicuously light yellow, the scutum 
brown, with numerous long black hairs on either side of the median line. 
Mesonotum brown without stripes, scutellum and postnotum more yellowish, 
somewhat pollinose. Pleura brown, the dorsopleural and metapleural rrgions 
more yellowish. Halteres light brown. Legs with the coxae and trochanters 
dull yellow; femora brown; tibiae and tarsi dark brown. Wings very broad, 
infumed with dusky; veins dark brown, densely long-hairy. Venation (see 
plate I, fig. lo) as in typical Trichocera but the second anal vein not recurved 
into the anal angle of the wing, subsinuate, in this respect differing from the 
described American forms. 
Abdomen dark brown. 
Habitat. — Northern United States and Canada. 
Holotype, J*, Hall Valley, near Platte Canon, Colorado; Atig st 
II, 1915; E. J. Oslar. 
Allotype, 5> topotypic. 
Paratypes, 4 J^J, topotypic ; % Watibamick, Parry Sound, Ontar o, 
June 13, 1915; H. S. Parish; J>, Woodworths Lake, Fulton Co., New 
York, June 15, 1914; C. P. Alexander. 
Types in the collection of the author, a paratype in the collection 
of Dr. W. G. Dietz. 
This generalized form is very interesting in the course of th-i 
second anal vein of the wings. The range of the species is northern, 
presumably of the Canadian life-zone. 
Explanation of Plate VIII. 
Fig. I. Wing of Limnophila alleni Johnson. 
Fig. 2. Wing of Limnophila marchandi n. sp. 
Fig. 3. Wing of Limnophila mundoides n. sp. 
Fig. 4. Wing of Limnophila munda Osten Sacken. 
Fig. 5. Wing of Limnophila terebrans n. sp. 
Fig. 6. Wing of Limnophila barberi n. sp. 
Fig. 7. Wing of Limnophila terra-novce n. sp. 
Figs. S, 9. Wings of Limnophila oslari n. sp. 
Fig. 10. Wing of Trichocera {Diazosma) subsinuata, n. sp. 
