30 THE CANADIAN ENTOMOLOGIST 
Tribe Pedicini. 
Genus Tricyphona Zcttcrstcdt. 
Tricyphona autumnalis, sp. n. 
Allied to T. cakar O. S.; female with the wings semi-atrophied 
and the valves of the ovipositor straight; male with the hypopygium 
provided with conspicuous long hairs. 
Male. — Length 13.5-15 mm.; wing 13.5-14 mm. 
Female. — Length 20 mm.; wing 9.6 mm. 
Male. — Rostrum dull yellow, the palpi dark brown. An- 
tennae with the scapal segments dull, brownish yellow, the five or 
six basal segments of the flagellum yellowish, thence passing into 
dark brown at the tip of the organ. Head light gray, indistinctly 
darker medially, the frontal tubercle blackish; vertex with long 
yellowish hairs inserted in black punctures. 
Mesonotal prarscutum yellowish wdth three indistinct, reddish 
yellow stripes; scutellum and postnotum w^hitish yellow. Pleura 
whitish yellow\ Halteres yellow, the knobs brown. Legs with the 
coxae and trochanters light yellow; fem.ora yellowy passing into 
brownish at the tips; tibiae yellow, narrowly dark brown at the 
tips; tarsi dark brow^n. Wings yellowish subhyaline, the costal 
region more saturate yellow; stigma brown; veins brow^n. Vena- 
tion: vein R 4+5 forked, the petiole very short, subequal to the 
r-m cross-vein. 
Abdominal tergites dark brown, a little paler caudally; basal 
stemites yellowish, terminal sternites brown, the segments narrowdy 
ringed with paler on the caudal margins. Hypopygium with the 
pleurites and appendages dark brown, densely long-hairy. 
Female. — Similar to the cT but the antennae shorter; wings 
relatively very small, semi-atrophied; femora and tibiae wdth the 
dark apices less distinct; valves of the ovipositor powerful, almost 
straight. 
Habitat. — Northeastern United States and Eastern Canada. 
Holotype, cf, Woodworth's Lake, Fulton Co., New York; 
altitude 1,600 feet; September 2, 1916 (Alexander). 
Allotype, 9 , with the type. 
Paratopotypes, 25 d^ 9 ; paratypes, d^, Meach Lake, Quebec, 
Sept. 2, 1903 (J as. Fletcher); d', Rostrevor, Quebec, Sept. 2, 1907 
(A. Gibson); d" 9 , Katahdin, Piscataquis Co., Meiine, Aug. 22, 
