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Species Eulithis gracilineata - Greater Grapevine Looper - Hodges#7197

Eulithis gracilineata Eulithis gracilineata Eulithis gracilineata Greater Grapevine Looper - Hodges#7197 - Eulithis gracilineata - female Eulithis gracilineata (Greater Grapevine Looper) - Eulithis gracilineata Eulithis gracilineata (Greater Grapevine Looper) - Eulithis gracilineata Greater Grapevine Looper - Eulithis gracilineata Eulithis gracilineata
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 Hydriomenini
Genus Eulithis
Species gracilineata (Greater Grapevine Looper - Hodges#7197)
Hodges Number
7197
Synonyms and other taxonomic changes
Eulithis gracilineata (Guenée, [1858])
original combination Cidaria gracilineata Guenée, 1857
* phylogenetic sequence #211025
Size
Wingspan 35-40 mm
Identification
Lesser Grapevine Looper (Eulithis diversilineata) is similar but smaller. Adults of E. diversilineata and E. gracilineata cannot be separated by appearance alone without rearing or dissection:

However, the forewing measures do not overlap (Lesser 12-15 mm; Greater, 16-19 mm). Thus, photographs with a millimeter rule are crucial for identification. Compare these images of Lesser (left) and Greater (right).

Another example of measuring the forewing can be seen on iNaturalist here. The wingspan can also be used, though it may need to be corrected for posture: Lesser has a wingspan of 28–33 mm, Greater 35-40 mm.
See Also
Lesser Grapevine Looper (Eulithis diversilineata).
Print References
Choi, Sei-Woong (2001) Phylogeny of Eulithis Hübner and Related Genera (Lepidoptera: Geometridae), with an Implication of Wing Pattern Evolution; AMERICAN MUSUEM Novitates, no. 3318, 37 pp. (PDF download)
Internet References
Strickland Museum species page, with description, size, habitat, range, life history