THE CANADIAN ENTOMOLOGIST 65 
brownish, the anterior half most intense. Pleura silvery white, 
the mesosternum and mesopleura brownish. Hal teres dark brown, 
the knobs and extreme bases of the stems pale. Legs with the 
ccxcc yellow, the posterior coxa? dusted with white pollen; femora 
dull yellow, the tips dark brown; tibicX and tarsi yellowish brown. 
Wings with the usual liebes pattern but this \ery heavy. 
Abdoir.en brownish yellow, the tergites broadly margined with 
paler, and submargincd with a narrow brown line, palest on the 
basal segments, on the fourth and succeeding tergites darker and 
sufTusing the dorsum of the segments; on the five basal tergites 
with a dark brown, dorso-median line that is interrupted only by 
the pale, caudal margins of the segments; sternites brownish yellow, 
margined caudally with silvery, the eighth sternite dark brown, 
the lateral lobes margined inwardly wdth a dense brush of long, 
golden hairs. Male hypopygium with the eighth sternite with 
the caudal margin deeply incised, tripartite, the lobes fringed as 
described above. Blade-like process not of the elongate, spiral, 
horn-like structure of latipennis but flattened, the acute tips 
curved strongly downwards, the ventral carina obliquely and 
parallelly grooved or fluted; lower process longer, straight and 
more pointed, the expanded basal inner portion evenly rounded, 
suffused with brown, not rectangular or toothed, (as in latipennis) 
upper process a prominent flatted lobe, rounded apically, the whole 
lobe intensely chitinized, black, not at all hatchet-shaped as in 
latipennis. In T. hebes the lower process is very massive and 
with the basal inner portion produced proximad as an acute, 
chitinized spine; the blade-like processes xery narrow toward the 
tip which is feebly expanded into a spatula; the upper process 
bifurcate, Avith two chitinized arms, the outer more pointed, the 
inner flattened and with the apex rounded. 
Habitat. — Northeastern United States. 
Holotype.—d', Indian Ladder, Helderberg Mts.. Albany Co., 
N.Y., July 3, 1916, (Alexander). 
Allotopotype. — 9 . 
Paratopotype. — &\ paratype. — cf, Wells, Hamilton Co., N.Y., 
July 31, 1914, (Young); in the N. Y. State Museum. 
Type in the collection of the author. 
