SMULYAN: NEW ENGLAND TENTHREDELLA. 441 
Wings. — Fore wings faintly pale honey-yellow; stigma nearly 
black, pale at base; costal cell fairly strongly translucent; veins 
blackish. Hind wings hyaline, apical half faintly clouded. 
Length. — 11 mm. 
Redescribed from the type specimen. 
T. pallicolus var. heulahensis (Rohwer) is the same as pallicola, 
since it differs principally from pallicolus (MacGillivray) in having 
"the inner orbits narrowly yellow," and the latter is only a rede- 
scription of pallicola. 
Habitat. — Mt. Washington, New Hampshire; Beulah (on foli- 
age of Veratrum, July, Rohwer), and Cloudburst (June), New 
Mexico. 
Tenthredella tricolor (Norton). ^ 
Allantus tricolor Harris, MS. (nomen nudum). 
Allantus tricolor Norton, Boston Journ. Nat. Hist., vol. 7, 1860, p. 247, n. 
22, 9. 
Tenthredo tricolor Norton, Trans. Amer. Ent. Soc, vol. 2, 1868-9, p. 236, n. 
22,?. 
Tenthredella rohweri Smulyan, Can. Ent., vol. 47, 1915, p. 323, 9 . 
The type is in the Harris Collection in the Museum of the 
Boston Society of Natural History, manuscript number 515; in 
rather poor condition. It was taken by J. W. Randall in 1836, 
probably in the vicinity of Hallowell, Maine. 
Female. — Head. — Black; the following parts yellow, or yel- 
lowish white: clypcus, labrum, mandibles, and a minute elongate 
spot at the summit of the inner orbit; low^cr portion of cheek and 
lower orbit, lower portion of inner orbit, and the inside of the 
two basal segments of the antennae, ferruginous. Head behind 
eyes not quite as wide as through them (difference slight) ; supra- 
antennal ridges from quite prominent to prominent; posterior 
portion of frontal fovea sometimes rather shallow. 
Thorax. — Black; posterior dorsal margin of the lobes of collar 
narrowly in part, and a spot on the meta-epistcrnum, j'cllowish, 
^Tenthredo tricolor Gmelin, 1790, = Arge pagana Panzer (Enslin, 1917). 
Since Tenthredo tricolor Gmelin is not Tenthredella tricolor (Gmelin), Ten- 
thredella tricolor (Norton) is the valiil name for tliis siiecies. TenlhrcdclUi 
rohweri Smulyan cannot stand. 
