Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Subfamily Geometrinae - Emeralds

Moth - Nemoria mimosaria Nemoria zygotaria (Nemoria zygotaria - Hodges#7040) - Nemoria zygotaria - male Geometrid - Nemoria festaria Possible Red-fringed Emerald - Hodges #7046 (Nemoria bistriaria) - Nemoria bistriaria Synchlora bistriaria Southern Emerald Moth - Synchlora frondaria Blackberry Looper - Hodges#7071 - Chlorochlamys chloroleucaria Chloropteryx tepperaria - Angle-winged Emerald - Chloropteryx tepperaria
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 Geometrinae (Emeralds)
Explanation of Names
Geometrinae from the type genus Geometra (Linnaeus), Greek meaning "to measure the earth," referring to the larva, or inchworm, as they move in a looping fashion. (1)
Identification
Adult - Small moths named for their delicate green color; a few are yellowish or have brownish spring forms. M2 arises distinctly above middle of discal cells in FW and HW.
Remarks
Most emeralds can be described by some combination of these general characteristics:
     • Abdomen: plain, white dorsal stripe or white spots ringed with red
     • Traverse lines: smooth, wavy or scalloped, and whether bold or thin
     • Wings: FW pointed or rounded, HW angled or rounded, with discal spots or without
     • Fringe: pale green, pale white or red; plain or checkered
     • Other: whether AM on the FW continues on HW
Print References
Covell Jr., C.V. 1984. A field guide to the moths of eastern North America. (2)
Internet References
Works Cited
1.An accentuated list of the British Lepidoptera, with hints on the derivation of the names.
Anonymous. 1858. The Entomological Societies of Oxford and Cambridge.
2.Peterson Field Guides: Eastern Moths
Charles V. Covell. 1984. Houghton Mifflin Company.