452 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
before; the posterior femora ferruginous with a longitudinal 
bhick band above; anterior tibiae dull yellowish, intermediate 
brown, both blackish above; posterior tibiae ferruginous; anterior 
tarsi dull yellowish and the intermediate brown, both blackish 
above; posterior tarsi black, apical segment ferruginous. 
Wings. — Fore wings clouded, apical half strongly; costa deep 
brown; stigma almost black; costal cell quite strongly translu- 
cent; veins blackish. Hind wings hyaline, apical portion faintly 
clouded. 
Length. — 11.5 mm. 
Redescribed from one male. 
Habitat. — Massachusetts; New Hampshire (Cresson) ; Canada. 
Tenthredella mellina (Norton). 
Allantus mellinus Harris, MS. (nomen nudum). 
Allantus mellinus Norton, Boston Journ. Nat. Hist., vol. 7, 1860, p. 248, n. 
24, 9cf. 
Tenthredo mellinus Norton, Trans. Amer. Ent. Soc, vol. 2, 1868-9, p. 227, n, 
2, 9 c?. 
Tenthredo mellina Provancher, Nat. Can., vol. 10, 1878, p. 195, n. 2, c?, 9 (?). 
Tenthredo mellina Provancher, Faun. Ent. Can., vol.*2, 1883, p. 221, n. 2, 
&, 9 (?). 
The types, manuscript number 516, are in the Harris Collection 
in the Museum of the Boston Society of Natural History, Boston, 
Massachusetts. Both are in rather poor condition, the male in 
particular, only the thorax, wings, and the intermediate and 
posterior legs remaining. The type locality is probably the 
vicinity of Hallowell, Maine; J. W. Randall, collector. 
Female. — Head. — Pale yellowish brown; the following parts 
yellow: clypeus, labrum, mandibles, lower portion to fully lower 
half of cheek, lower orbit, front below antennae, anterior portion 
of supra-antennal ridges, inner orbit above base of antennae, a 
faint narrow line sometimes along the posterior margin of the 
head, and along the sides and above the occiput (the yellow on 
the front below the antennae extends sometimes above the bases 
of the antennae on each side of the frontal fovea, gi\dng the 
pale yellow-brown on the front above the antennae a distinctly 
trilobed anterior margin). Head behind eyes narrower than 
through them; supra-antennal ridges fairly prominent, some- 
