430 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
head, viz., the presence of the lobate black spot on the front above 
the antennae and vertex. It is pos.siblc, of course, that Norton 
failed to mention this, or to bring it out clearly, but he noted it 
in describing lohata and angulifera, both of which were described 
previous to angulata. The lobate spot in lohata and its relation 
to the black behind the upper part of the eye, which is the same 
as in nortoni, are accurately noted in a later redescription of 
lohata (Trans. Amcr. Ent. Soc, vol. 2, 1868-9, p. 229), but the 
redescription of the coloration of the head of angulata, in the 
same publication, does not differ materially from the original 
description. 
Habitat. — Massachusetts; New York; New Jersey. 
Tenthredella angulifera (Norton). 
Allantus angulifer Norton, Boston Journ. Nat. Hist., vol. 7, 1860, p. 252, n. 
31, 9 d". 
Terdhredo angulifera Norton, Trans. Amer. Ent. Soc, vol. 2, 18G8-9, p. 229, n. 
7, 9 &. 
Tenthredo angulifera Provancher, Nat. Can., vol. 10, 1878, p. 197, n. 6, 9 d^. 
Tenthredo angulifera Provancher, Faun. Ent. Can., vol. 2, 1883, p. 223, n. 
6, 9 c?. 
Tenthredo angulifera MacGUlivray, Bull. Conn. Geol. and Nat. Hist. Surv., 
no. 22, 1916, p. 88. 
Two female cotypes, both in rather poor condition, in the 
Harris Collection, in the museum of the Boston Society of Natural 
History, manuscript number 430: one from Dublin, New Hamp- 
shire, taken in July, 1835; the other from Maine, collected by 
J. W. Randall in 1836, probably in the vicinity of Hallowell, as 
Mr. Randall did most of his collecting there. 
Female. — Head. — Yellowish white, or yellowish; the fol- 
lowing parts black: back of head, a large spot on front above 
antennae and vertex, distinctly trilobed anteriorly and less dis- 
tinctly laterally, extending from the posterior margin of the head 
to between the bases of the antennae medially and uniting as a 
rule rather broadly along the posterior margin of the head with a 
smaller spot occupying the whole area behind the upper part of 
the eye (sometimes the anterior portion of the latter spot is 
more or less faded, or better perhaps, the black is not fully devel- 
oped, and very rarely, too, there is a very small yellow spot in 
each posterior angle of the vertex-plate) ; the latter spot as a rule 
