SMULYAN: NEW ENGLAND TENTHREDELLA. 459 
and hind tibiae slightly at base and sometimes faintly at apex; 
the following parts yellowish, or straw-eolor: the anterior femora 
from in greater part to almost entirely before and very often the 
intermediate before faintly, anterior tibiae before or except only 
above, intermediate except at apex or in part or entireh^ above, 
and the posterior except the apical third usually and except 
sometimes above in addition. 
Wings. ■ — Fore wings from faintly to distinctly pale honey- 
yellow; stigma from ferruginous to brown, as a rule pale at base; 
costal cell fairly strongly translucent; veins light brown, rarely 
blackish. Hind wings hj^aline, apical half very faintly clouded. 
Length. — 10-11 mm. Rather robust. 
Redescribed from eight specimens. 
Habitat. — Mt. Washington, New Hampshire (July). One 
specimen was taken at an altitude of 5500 to 6000 feet. 
Tenthredella cogitans (Provancher). 
Allantus cogitans Provancher, Nat. Can., vol. 10, 1878, p. 163, n. 3, 9 . 
Tenthredo cogitans Cresson, Trans. Amer. Ent. Soc, vol. 8, 1880, p. 43, 9 . 
Allantus cogitans Provancher, Faun. Ent. Can., vol. 2, 1883, p. 212, n. 3, 9 . 
Tenthredo neoslossoni MacGillivray, Can. Ent., vol. 46, 1914, p. 138, 9 . 
Tenthredo neoslossoni MacGillivray, Bull. Conn. Geol. and Nat. Hist. Surv., 
no. 22, 1916, p. 84. 
The type is in the Provancher Collection, Museum of Public 
Instruction, Quebec, Province of Quebec, Canada. 
Type locality, ? Province of Quebec, Canada. 
The type of neoslossoni is in Doctor MacGillivra3''s collection 
where I examined it. Type locality, Franconia, New Hampshire. 
Female. — Head. — Black; the following parts yellowish: 
clypeus, labrum, mandibles, lower orbit, front below antennae, a 
small elongate spot at the summit of the inner orbit (somewhat 
discolored); antennae dull ferruginous (in a Canadian specimen 
which I have seen they were practically black beyond the two 
basal segments). Head behind eyes fully as wide as through 
them; supra-antennal ridges moderately prominent and that onlj' 
immediately above the bases of antennae; frontal fovea in greater 
l)art shallow; antennae stoutish; front above antennae and vertex 
thiely roughened b}' sliallow and irregular punctures. 
