Eulithis gracilineata
(Guenée, [1858])
Greater Grapevine Looper
Sort #: 1852 | P #: 910371 | MPG #: 7197 | PFG Page #: 180
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Larval substrate: Vitis (Grape), Parthenocissus (Virginia Creeper)
Phenology: Adult: 6/20 to 10/21 (79 records)
Comment: Forewing measurements have been given as 16-19mm, agreeing with Massachusetts male specimens, with an average of about 17.5mm. The females of both E. gracilineata and E. diversineata are slightly larger than the males and female E. gracilineata can be as large as female E. diversilineata. Except for smaller than average male E. diversilineata (less than 15mm FWL) and maybe very large female E. gracilineata (greater than 19mm FWL), size cannot be reliably used to distinguish the species. Larvae can be distinguished by the presence of darkly pigmented lateral swellings on the second thoracic segment. They can be green or brown and according to Wagner (2005) they are twig mimics. For hints on how to identify this species, see the photo and the previous species' account.
Status in MA (automated assessment): Widespread, fairly common
Status in N. America: Native
MA Endangered Species Act status: None
First Year Reported: 1915
Last Year Reported: 2026
Distribution by County: Berkshire, Hampden, Hampshire, Franklin, Worcester, Middlesex, Essex, Norfolk, Bristol, Plymouth, Barnstable, Dukes, Nantucket
Number of Records: 121
