422 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
from Canada are as follows: St. John, New Brunswick (July, 
Rohwer) ; Quebec (?) (Provancher) ; St. Martin's Falls, Albany 
River, Hudson Bay (W. F. Kirby). 
Tenthredella lobata lobata (Norton). 
Allantus lobatus Norton, Boston Journ. Nat. Hist., vol. 7, 18G0, p. 2.53, n. 
32, 9. 
Tenthredo lobatus Norton, Trans. Amer. Ent. Soc, vol. 2, 186S-9, p. 229, n. 
6, ?. ■ 
Tenthredo lobata Provancher, Nat. Can., vol. 13, 1882, p. 299, n. 23, 9 . 
Tenthredo lobata Provancher, Faun. Ent. Can., vol. 2, 1883, p. 748, n. 23, 9 . 
Tenthredo lobata MacGillivray, Bull. Conn. Geol. and Nat. Hist. Surv., no. 
22, 191G, p. 88 (in part). 
The types are lost. Type locality, Farmington, Connecticut. 
Female. — Head. — Yellowish white, or straw color (palpi 
sometimes greenish); the following parts black: back of head, a 
large spot on front above antennae and vertex, trilobed ante- 
riorly and less distinctly laterall}^, extending from the posterior 
margin of the head to between the bases of the antennae medially 
and united by a somewhat oblique isthmus about midway between 
the posterior margin of the eye and posterior margin of the head 
with an elongate smaller spot behind the upper part of the eye 
which extends back about half-way toward the posterior mar- 
gin of the head, an elongate spot on the posterior half of the 
cheek (the lower portion usually not fully developed), antennae 
except the basal segment usually on the inside and a longitudinal 
line outside. Head behind eyes from slightly to distinctly nar- 
rower than through them; supra-antennal ridges moderately to 
fairly prominent. 
Thoeax. — Black; the following parts yellowish white, or 
straw color: margins of pronotum except dorsally, pronotal lobe, 
tegulae, V-spot on prescutum, upper margin of the meso-epimeron 
in part, usually a short narrow obliquely up-and-down band on 
the lower anterior portion of meso-episternum, meso- and meta- 
scutellar transverse extensions, upper margin of meta-postscutel- 
lum medially, upper margin of meta-epimeron narrowly, a spot 
on the meta-episternum. Mesoscutellum usuallj' strongly con- 
vex; meso-episternum sharply pointed. 
Abdomex. — Black; the following parts straw color: sides of 
