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Genus Fernaldella

Elegant small moth - Fernaldella fimetaria - female moth near porchlight - Fernaldella fimetaria - male Fernaldella fimetaria - female Unidentified Moth #4 - Fernaldella Fernaldella fimetaria? - Fernaldella fimetaria moth - Fernaldella fimetaria Lep A 9.4.18 - Fernaldella Fernaldella sp? - Fernaldella
Show images of: caterpillars · adults · both
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Geometroidea (Geometrid and Swallowtail Moths)
Family Geometridae (Geometrid Moths)
Subfamily Ennominae
Tribe Macariini
Genus Fernaldella
Synonyms and other taxonomic changes
Fernaldella Hulst, 1896 [type species Fidonia fimetaria Grote & Robinson, 1870]
is commonly treated as a synonym of closely similar and closely related
Narraga Walker, 1862 [type species: Geometra cebraria Huebner (=Phalaena fasciolaria Hufnagel) from Europe].
Explanation of Names
Generic epithet in honor of entomologist Charles H. Fernald (1838-1921).
When separated, Narraga occurs in Eurasia, and Fernaldella in North America.
3 species in North America (
wingspan about 20 mm
adults often mistaken for butterflies because they visit flowers during the day and hold their wings vertically over their back, displaying the brightly-patterned underside of the hindwing; the strongly pectinate antennae distinguishes them from butterflies
upperside of wings light to medium brown (or mostly orangish-yellow in N. stalachtaria) with pale yellowish patches along the costa of forewing; fringe checkered dark brown and white
F. georgiana occurs only in Georgia
F. fimetaria distributed from Texas and Oklahoma to California, north to southern Alberta and Saskatchewan
F. stalachtaria apparently restricted to the southwest (e.g. Utah, Colorado, New Mexico)
dry shrublands, sparsely-vegetated sandy areas
adults fly from May to August in the north, or as early as March in the south
larvae of F. georgiana feed on Shrub Goldenrod (Chrysoma pauciflosculosa); other species presumably feed on snakeweed [broomweed] (Gutierrezia spp.) or other composites
Life Cycle
two generations per year
Internet References
live adult image of F. fimetaria, showing pattern on underside of wings (Lynn and Gene Monroe, Colorado)
adult images of F. fimetaria and stalachtaria (Moth Photographers Group)
pinned adult images of F. georgiana (James Adams, Dalton State College, Georgia)
pinned adult image of F. fimetaria plus description, habitat, food plants, distribution (G.G. Anweiler, U. of Alberta)
pinned adult images of male and female F. fimetaria (CBIF)
distribution in Canada of F. fimetaria, listing Saskatchewan and Alberta (CBIF)