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

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

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

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

Photos of 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

Previous events


Species Ponometia semiflava - The Half-Yellow - Hodges#9085

The Half-Yellow - Hodges #9085 - Ponometia semiflava Moth - one half yellow and the other half mottled brown - Ponometia semiflava half-yellow? - Ponometia semiflava Moth to blacklight - Ponometia semiflava Ponometia semiflava The Half-Yellow - Hodges#9085 - Ponometia semiflava Ponometia semiflava? - Ponometia semiflava Arizona Moth - Ponometia semiflava
Show images of: caterpillars · adults · both
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Noctuoidea (Owlet Moths and kin)
Family Noctuidae (Owlet Moths)
Subfamily Acontiinae (Bird Dropping Moths)
Tribe Acontiini
Genus Ponometia
Species semiflava (The Half-Yellow - Hodges#9085)
Hodges Number
Other Common Names
Yellow-cloaked Midget
Synonyms and other taxonomic changes
Ponometia semiflava (Guenée, 1852)
Xanthoptera semiflava Guenée, 1852
Phylogenetic sequence #931308
Explanation of Names
semiflava is Latin for "half-yellow"
wingspan 14-24 mm
New York and New England to Florida, west to Arizona, north to British Columbia; in Canada, occurs from BC to Manitoba.
Dry open areas such as sandy prairie, old beaches, dunes; adults are nocturnal and come to light, but are also easily flushed during the day.
Adults fly from March to August in the south; June and July in the north (Alberta).
Maryland goldenaster (Chrysopsis mariana) in New Jersey and North Carolina; presumably related composites elsewhere.
Life Cycle
One generation per year.
See Also
Exyra ridingsii (=nigrocaput) is similar but has black on the top of the head and thorax.
Print References
Boisduval, J. B. & A. Guenée 1852. Anthophilidae. Noctuilites 2. Histoire Naturelle des Insectes. Species General des Lépidoptéres 6: 241
Internet References
pinned adult image plus common name references, habitat, flight season, description, biology, foodplant remarks (G.G. Anweiler, U. of Alberta)
pinned adult image (Bruce Walsh, Moths of Southeastern Arizona)