SMULYAN: NEW ENGLAND TENTHREDELLA. 415 
Type locality, "Carriage Road," Mt. Washington, New Hamp- 
shire (Mr. George Dimmock). 
Female. — Differs from T. cinditihiis cinctitihiis in having the 
abdomen beyond the fourth segment ferruginous and the meso- 
scutellum only very slightly convex. 
Length. — 11 mm. 
Described from one specimen. 
There is another specimen of the same sex in the U. S. National 
Museum, but it bears no locality label. 
Tenthredella leucostoma (W. F. Erby). 
Tenthredo rufipes Say, Long's Second Expd., vol. 2, 1824, p. 317, n. 3, 9 {nee 
Klug, 1814). 
Allantus leucostoma W. F. Kirby, Fauna Bor.-Amer., vol. 4, 1837, p. 256, 
n. 354, 9 . 
Tenthredo rufipes Leconte, Writ. Thos. Say, vol. 1, 1859, p. 212, n. 3, 9 (also 
ed. 1869). 
Allantus leucostoma Norton, Boston Journ. Nat. Hist., vol. 7, 1860, p. 254, n. 
34, 9. 
Tenthredo rufipes Norton, Trans. Amer. Ent. Soc, vol. 2, 1868-9, p. 237, n. 
28, 9. 
Allantus leucostoma Bethune, Can. Ent., vol. 7, 1875, p. 159, n. 354, 9 . 
Tenthredo rufipes Provancher, Nat. Can., vol. 10, 1878, p. 199, n. 11, 9 . 
Tenthredo rufipes Provancher, Faun. Ent. Can., vol. 2, 1883, p. 225, n. 11, $ . 
Tenthredo rufipes MacGillivray, Bull. Conn. Geol. and Nat. Hist. Surv., no. 22, 
1916, p. 91. 
The type of leucostoma is in the British Museum, and was not 
examined. Type locality, Canada, lat. 65° north. 
The type of Tenthredo rufipes Say is lost. Type locality, 
"Northwest Territory." 
Female. — Head. — Black, shining; the following parts pale 
yellow: clypeus, labrum, mandibles, a small spot usually on 
lower portion of cheek close to the eye, and a minute elongate 
spot at the summit of the inner orbit (often discolored) ; antennae 
often rufescent apically beneath, veiy rarely entirely, and some- 
times the two basal segments ferruginous inside. Head behind 
eyes from very slightly narrower to Yery slightly wider than 
through them; supra-antennal ridges prominent. 
Thorax. — Black; posterior dorsal margin of lobes of collar 
