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Genus Orthonama

The Gem - Orthonama obstipata - male 7414  The Gem  - Orthonama obstipata - male The Gem - Orthonama obstipata The Gem - Orthonama obstipata Orthonama obstipata (The Gem) - Orthonama obstipata - female the gem - Orthonama obstipata - female The Gem - Orthonama obstipata Orthonama obstipata
Show images of: caterpillars · adults · both
Classification
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 Larentiinae
Tribe Xanthorhoini
Genus Orthonama
Numbers
2 species in North America
2 species in Canada
Identification
Typical of the subfamily Larentiinae, Orthonama species have banded forewings, drab hindwings, and slender bodies in comparison to wing size, making the moth appear fragile. (CBIF)
Range
North America east of the Rockies
(O. obstipata is holarctic)
Remarks
the former O. centrostrigaria (Bent-line Carpet) was placed in the genus Costaconvexa by Malcolm Scoble et al in 1999 (Geometrid Moths of the World)
Internet References
pinned adult images of both North American species (CBIF)
O. obstipata adult images of the sexually dimorphic male & female (Larry Line)