Synonyms and other taxonomic changes
(Robinson, 1869) (1)
Conchylis ridingsana Robinson, 1869
Eucosma ridingsana (Robinson, 1869)
Explanation of Names
Specific epithet in honor of collector James Ridings
(1803-1880), founder of the Philadelphia Entomological Society and one of the first to collect in the Colorado Territory.
Robinson (1869) listed a wingspan of 23 mm.
Powell & Opler (2009) listed the forewing length 7.5-13 mm. (2)
Robinson (1869) original description as Conchylis ridingsana is online and linked in the print references.
Found throughout most of the western two-thirds of North America. (3)
Moth Photographers Group
- large map with some distribution data.
Types: Colorado Territory (James Ridings).
The main flight period is May to October. (3)
Larva bore into broom snakeweed, Gutierrezia sarothrae
(Pursh) Britton & Rusby. (4)
Eucosma fernaldana which is similar but has reddish ground color
Compare to others on the pinned plates of Moth Photographers Group
Gilligan, Wright & Gibson, 2008. Olethreutine Moths of the Midwestern United States
. Ohio Biological Survey: 103.135. (5)
Powell, J.A. & P.A. Opler, 2009. Moths of Western North America
. University of California Press, pl. 15, fig. 23-24; p. 134. (2)
Robinson, C.T., 1869. Notes on American Tortricidae. Transactions of the American Entomology Society