Numbers
59 species in the U.S. and Canada
(1)
Identification
Stout bodied, easily recognized by their characteristic antennae: three-segmented, the third segment very long; males of some species have the last antennal segment U-shaped or Y-shaped. Most argids are black or dark colored.
Food
The larvae feed mainly on foliage of various kinds of trees or shrubs.
Print References
Borror and DeLong, page 648
(2)
Borror and White, p. 317, illustrate antennae of this and other sawflies.
(3)
Baker, p. 437, describes several common eastern species, including their host associations
(4).