SMULYAN: NEW ENGLAND TENTHREDELLA. 461 
Unidentified and Misplaced Species. 
Tenthredo angulata Norton. 
Tenthredo angulatus Norton, Proc. Ent. Soc. Phila., vol. 3, 1864, p. 13, n. 27, cf, 
Tenthredo angulatus Norton, Trans. Amer. Ent. Soc, vol. 2, 1868-9, p. 230, 
n. 9, c?. 
Tenthredo angulata MacGillivray, Bull. Conn. Geol. and Nat. Hist. Surv., 
no. 22, 1916, p. 87. 
The type of this species is lost. 
Norton's original description is as follows: "Black, with the 
orbits, face below antennae, collar, V spot on thorax, an angular 
line and spots on pleura and the breast white; apical half of abdo- 
men rufous. (Long 0.32. Br. wings 0.70 in.) 
"cf . Shining black; antennae very long, enlarged and flattened 
in middle, 3rd joint a little longer than 4th; head polished, an 
orbital line interrupted at summit and diverging from outer side 
of eye in its upper half, the face below antennae, edge of anterior 
angle, V spot on thorax, a large slender angular line on pleura, a 
spot above posterior coxae and the breast, white; coxae black 
above; the four anterior legs white, black above; posterior legs 
black, their trochanters white and femora in the middle whitish ; 
abdomen rufous, the two basal segments and sides of third black, 
at l)ase beneath paler; wings hyaline, nervures blackish. 
"Massachusetts. (Coll. Ent. Soc. Philad.) One specimen. 
"This resembles T. dissimilis, especially in the length and 
form of antennae, but there is no angular line on the pleura of 
that." 
It is quite possible that I have redescribed this species as new 
under the name of nortoni. See discussion in connection with 
nortoni. 
Tenthredo frigida MacGillivray. 
Tenthredo frigida MacGillivray, Can. Ent., vol. 27, 1895, p. SO, cf. 
Tenthredo frigida MacGillivray, Bull. Conn. Geol. and Nat. Hist. Surv., no. 
22, 1916, p. 88. 
The type of this species is probably lost. 
Doctor MacGillivray 's description is as follows: 
" cf Black, with the following parts yellowish-white: dypcus, 
labrum, the mandil)lcs except tips which are rufous, cheeks, 
tegulae, collar, a spot above anterior coxae, a line on pleurae, a 
