SMULYAN: NEW ENGLAND TENTHREDELLA. 411 
Illinois. Records from Canada are as follows: Ottawa, Ontario 
(June, Harrington); Quebec (?) (Provancher) ; Nerepis, New 
Brunswick (July, Rohwer). 
Tenthredella nigricoUis (W. F. KirbjO- 
Tenthredo nigricoUis W. F. Kirby, List Hym. Brit. Mus., vol. 1, 1882, p. 308, 
n. 109, 9 , pi. 12, fig. 3. 
Tenthredo nigricoUis MacGillivray, Can. Ent., vol. 27, 1895, p. 79, 9 . 
Tenthredo nigricoUis MacGillivray, Bull. Conn. Geol. and Nat. Hist. Surv., 
no. 22, 1916, p. 84. 
The type is in the British Museum, and 1 have not seen it. 
Type locality, Newfoundland ("captured in April"). 
Female. — Head. — Black; lower two-thirds of clypeus, labrum, 
mandibles, and the four apical segments of the antennae cream 
white. Head behind eyes narrower than through them (differ- 
ence may be slight); vertex-plate distinctly wider than long; 
supra-antennal ridges fairly to quite prominent. 
Thoeax. — Black; tcgulae dark dull ^rruginous (may be black 
in part); a large white spot on the meta-episternum. Meso- 
scutellum from rather flattish to moderately convex; meso- 
episternum rather blunt, surface smooth. 
Abdomen. — Black; sides of basal tergum white; sixth sternum 
widely, roundly, and shallowly emarginate. 
Legs. — Dark ferruginous (anterior tibiae and tarsi paler) ; 
the following parts black : coxae, trochanters, anterior and inter- 
mediate femora behind and completely basally (more extensive 
on latter), posterior femora, posterior tibiae apically and very 
slightly at base, more or less of four basal segments of posterior 
tarsi — may be only blackish; extreme apices of four basal seg- 
ments of intermediate tarsi may be dusky. Arolia small. [A 
speciman from Seldovia, Alaska, taken by Kincaid (Harriman 
Expedition, 1899) had th(! legs beyond the trochanters almost 
entirely ferruginous.] 
Wings. — Fore wings faintly pale honey-yellow; costa blackish 
near stigma; stigma practically black; costal cell moderately 
translucent, more strongly beyond costal cross-vein; veins black 
or blackish. Hind wings hyaline, apical half very faintly clouded. 
