Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

BugGuide is a National Moth Week Partner. How to add your National Moth Week 2021 photos. July 17-25.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

National Moth Week 2020 photos of insects and people.

Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Previous events


Genus Sicya

227 Sicya crocearia 6911 - Sicya crocearia - male Sicya crocearia 189 - Sicya macularia Sicya macularia - female Sicya - Sicya macularia - male Geometrid Moth - Sicya morsicaria Yellow Moth - Sicya macularia Sicya macularia - Sicya crocearia
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 Ourapterygini
Genus Sicya
Synonyms and other taxonomic changes
Sicya Guenée, 1857
6 species in North America (
2 species in Canada (CBIF)
all of Canada, including the arctic, northeastern US, and western US through Arizona and California to Mexico and at least as far south as Costa Rica (absent from Texas, Florida, [and the Gulf states?])
Some of the species IDs may not be reliable from just a photo, since a few of them look nearly identical and each may be slightly variable. (Bob Biagi)
(for example): A species level match could not be made, the specimen is likely to be one of the following: Sicya crocearia matches at 100%, Sicya macularia at 99.9%
Internet References
pinned adult images of a male and two female S. macularia (James Adams, Dalton State College, Georgia)
live larva image of S. crocearia and other info (Caterpillars of Pacific Northwest Forests, USGS)