130 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
(C. W. Johnson). The New Jersey data would indicate that possibly 
the species or some specimens may hibernate as imagos. The seven 
show considerable variation; the one from Mt. Greylock has the discal 
cell of the right wing open. The length of the discal and second 
posterior cells also varies greatly ; the specimen from North Adams has 
the discal cell extending beyond the inner end of the second posterior 
cell, and in all specimens there is some variation in the length of the 
petiole. The spots on the wings are noticeably smaller in the specimens 
(females) from western Massachusetts. 
Tricyphona auripennis (Osten Sacken). 
Amalopis auripennis Osten Sacken, Proc. acad. nat. sci. Phila., 1859, p. 
247; Mon. No. Amer. Dipt., pt. 4, p. 268, 1869. 
One specimen (?) collected by ]Mrs. Annie T. Slosson on Mt. 
Washington, New Hampshire. Owing to the variability in the vena- 
tion of the species of this genus, I can only refer this specimen doubt- 
fully to this species, until more are obtained. It agrees in every 
respect with the description except that the first submarginal cell is 
longer than the second; there is also a slight clouding at the end of 
the radius (Rj) and along the outer edge of the discal cell. Length, 
15 mm. 
Tricyphona calcar (Osten Sacken). 
Amalopis calcar Osten Sacken, Proc. acad. nat. sci. Phila., 1859, p. 247; 
Mon. No. Amer. Dipt., pt. 4, p. 268, pi. 2, fig. 14, 1869. 
This species, the only one in this section with truly immaculate 
wings, shows but little tendency to vary. It has been collected in the 
following localities: East Walpole, Massachusetts, INIay 26, 1908; 
Dedham, Massachusetts, Sept. 4, 1904; Brookline, Massachusetts, 
Sept. 6; Mt. Greylock, Massachusetts, June 15, 1906; North Mt., 
Pennsylvania, June 8, 1898 (C. W. Johnson); and White Cap Mt., 
Maine, Aug. 17, 1905 (F. ]M. Jones); Cohasset, Massachusetts, 
Oct. 1 (Owen Bryant). 
In regard to the standing of the genus Tricyphona which has been 
so fully discussed by Dr. Bergroth and Baron Osten Sacken, the 
question is not whether the type of Tricyphona {Limnobia immacu- 
lata Meigen) is characteristic of the genus as a whole; it is not gen- 
erically distinct; therefore according to the rules Amalopis Haliday, 
1856, is a synonym of Tricyphona Zetterstedt, 1S40. 
