Synonyms and other taxonomic changes
(Ragonot, 1887) (1)
Homoeosoma mucidella Ragonot, 1887
Rotruda mucidella mucidella
Heinrich, 1956:226 (2)
Phycitodes albatella mucidella
Elevated from subsp. of albatella
by Neunzig, 1997 (1)
Powell & Opler (2009) listed the forewing length as 6.5-10 mm. (3)
occurs throughout western United States and southwestern Canada. (3)
The adults are most common from March to October. (5)
Larvae have been reared on: (3)
) treated reliquellum
as subspecies of Rotruda mucidella
(Ragonot, 1887). Neunzig (1997) elevated mucidella
to species status. Scholtens & Solis (2015) (6)
follows Neunzig (1997).
As of 2016, DNA barcoding at BOLD does not seem to be able to differentiate between reliquellum and mucidella. Neunzig (1997) does not appear to explain why he overturned Heinrich (1956). In separating the two species, he mentions distribution and morphological differences which Heinrich apparently considered superficial. Heinrich noted variation in genitalia but found the variations were not confined to particular populations.
is an eastern species. It averages smaller with forewings having less white and less contrast between dark and pale scales. (1)
Neunzig, H.H., 1997. The Moths of America North of Mexico
, Fascicle 15.4. The Wedge Entomological Research Foundation, p. 117; pl. 4.37. (1)
Powell, J.A. & P.A. Opler, 2009. Moths of Western North America
. University of California Press, pl. 26, fig. 35; p. 194. (3)
Ragonot, E.L. 1887. Diagnoses of North American Phycitidae and Galleriidae. – Published by the author, Paris. 1–20.