62 THE CANADIAN ENTOMOLOGIST 
This interesting late-summer and early-autumn species is 
similar to T. caJcar O. S., which, in the male sex, has the stigma of 
the wings almost indistinct, and the hypopygium very small and 
provided with short hairs; in autumnalis the stigma is brown and 
the elongate male hypopygium is densely provided with long, dark 
hairs. In the female sex, the reduced wings of the new species are 
very curious. (ai(tiimnalis, length of body 20 mm.; wings 9.5 mm.; 
calcar, length of body 17 mm.; wings 14 mm.), and the ovipositor 
has the tergal valves strong, powerful, almost straight and rather 
blunt at their tips; in calcar, the tergal valves are shorter, strongly 
up-cur\ed and more pointed at their tips. 
Tricyphona cervina, sp. n. 
Allied to T. septentrionalis Bergr.; colour light fawn-yellow^; 
antennae brownish black throughout, the basal flagellar segments 
crowded, the apical ones attenuated; mesonotum with three stripes; 
o\ipositor and hypopygium bright yellow\ 
Male. — Length 6 mm. ; wing 7.8 mm. 
Female. — Length 8 mm.; wing 8.5 mm. 
Rostrum and palpi dark brown. Antenna? dark brownish 
black, the first segment a little grayish pruinose; first six segments of 
the flagellum large and closely approximated, the remaining seg- 
ments elongate and attenuated (as in T. septentrionalis). Head 
brownish gray, clearer gray behind and on the gena? beneath. 
Mesonotal pra^scutum light brown with a golden pollen, with 
three dark brown stripes; the middle stripe is longest, narrowed 
behind, broadened anteriorly, indistinctly bisected behind by a 
\itta of the ground-colour; lateral stripes short; scutum and post- 
notum grayish yellow; scutellum more yellowish. Pleura reddish 
brown with a sparse gray or grayish-w'hite bloom. Halteres pale 
yellow, the knobs \ery slightly darkened. Legs with the coxcC 
yellow, sparsely gray pruinose on the outer face; trochanters dull 
yellow; femora dull yellow% passing into brown at the tips; tibiic 
Ncllowish brown, a little darkened apically; tarsi brown. Wings 
nearly hyaline; stigma pale brown; \eins brown. Venation: petiole 
of cell Ri moderate, about equal to or shorter than cell 1st Ah; 
cell 1st Ml pointed at inner end (as in septentrionalis); petiole of 
cell Ml long, much longer than either cell ,l/i or 1st Mi; basal 
