Synonyms and other taxonomic changes
Dichomeris bilobella (Zeller, 1873)
Gelechia bilobella Zeller, 1873
Phylogenetic sequence # 070450
Wingspan about 15 mm.
Larva length to about 17 mm.
Adult - forewing dark gray to blackish with large pale brownish-yellow patch extending from base along costa, then crossing wing to inner margin in PM area; dark basal coloring along inner margin is constricted in AM area, then expands to form two rounded lobes in median area; reniform spot black, shaped like a bow-tie; PM line brownish-yellow, usually noticeable; subterminal line composed of several pale dots; hindwing pale gray with wide fringe.
Eastern North America; Alberta, Saskatchewan, and California. (1)
The adults are most common from May to August. (1)
Larvae present from spring to July. (4)
The larvae feed on leaves of goldenrod (Solidago
spp.) and aster. (4)
Eggs are laid on hostplant in summer but do not hatch until the following spring; young larvae spin a silken web on leaves of host; older larvae pinch or fold leaves together to form a retreat; one generation per year; overwinters as an egg. (4)
- forewing has metallic silvery patch instead of a cream-colored one, and a sharp "tooth" that projects toward inner margin in AM area.
Beadle, D. & S. Leckie, 2012. Peterson Field Guide to Moths of Northeastern North America
. Houghton Mifflin. p. 66 (preview
Hodges, R.W., 1986. The Moths of America North of Mexico
: Fascicle 7.1, Revision of North American Gelechiidae family and its three subfamilies, p. 90, pl. 2, figs. 25-26 (6)
Loeffler, C.C., 1996. Caterpillar leaf folding as a defense against predation and dislodgment: Staged encounters using Dichomeris
(Gelechiidae) larvae on Goldenrods. Journal of the Lepidopterists' Society
, 50(3): 245
presence in Ontario; list
as Trichotaphe bilobella
(NHIC; Ontario Ministry of Natural Resources)