|Common name: Red-humped oakworm
Identification: Rfw 18.8 mm, with a pale streak from discal cell to
apex; streak with white tooth just distad of reniform about as wide as
high; s.t. line appears as a series of sinuate black marks in each cell.. Scape of antennae with long scale tuft, palpi
prorect, longer than height of eye. Male with emargination of
eighth sternite wider than deep.
Distribution: southern Canada and temperate United
States east of the Great Plains.
Hosts: Larval feed on Oaks- Quercus.
Note: Prior to
1946, S. canicosta, S. leucitys and S. albifrons were
thought to be a single species going under the latter name. See
the Key to
Notodontidae of the Dakotas for separation of these three species.
The true S. albifrons does not occur in the Dakotas.
MN. Becker Co., 30- VI- 1961. R. Poole.
Head of S. canicosta showing tuft of scales on antennal
Larva, pic courtesy of A. Steven Munson, USDA Forest Service,
Forestry Images, Bugworld.org