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

Calendar
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


TaxonomyBrowse
Info
ImagesLinksBooksData

Species Papaipema insulidens - Ragwort Stem Borer Moth - Hodges#9488

reared Papaipema birdi - Papaipema insulidens Noctuidae: Papaipema birdi - Papaipema insulidens Noctuidae: Papaipema birdi - Papaipema insulidens Umbellifer Borer - Papaipema insulidens Papaipema on Water Hemlock, dorsal - Papaipema insulidens Papaipema, dorsal - Papaipema insulidens Papaipema insulidens? - Papaipema insulidens Noctuidae: Papaipema insulidens - Papaipema insulidens
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 Noctuoidea (Owlet Moths and kin)
Family Noctuidae (Owlet Moths)
Subfamily Noctuinae (Cutworm or Dart Moths)
Tribe Apameini
Genus Papaipema (Borer Moths)
Species insulidens (Ragwort Stem Borer Moth - Hodges#9488)
Hodges Number
9488
Synonyms and other taxonomic changes
Papaipema insulidens (Bird, 1902)
Hydroecia insulidens Bird, 1902
Gortyna birdi Dyar, 1908 (1)
Gortyna nephrasyntheta Dyar, 1908
Papaipema pertincta Dyar, 1920 (1)
Phylogenetic sequence # 932480
Size
Bird (1902) reported the wingspan as 32-37 mm.
Powell & Opler (2009) reported the forewing length to be 14-17 mm. (2)
Habitat
Papaipema insulidens occurs in wetlands and along creeks and rivers. (3)
Food
"This species is a borer in the stems of its hostplants. It has been found in various umbels (Apiaceae), lilies, and composites such as tansy ragwort (Senecio jacobaeae) in the Northwest. This moth is locally common in some parts of western Oregon in association with this invasive plant. Crumb (1956) also lists lupine (Lupinus polyphyllus) and cow parsnip (Heracleum lanatum) as food plants." (3)
Other host plants include Spotted Water Hemlock (Cicuta maculata), Purplestem Angelica (Angelica atropurpurea), and Hemlock Waterparsnip (Sium suave)
See Also
Indigo Stem Borer (Papaipema baptisiae) is larger (wingspan 38 mm), forewing has yellowish-orange basal spots, smaller reniform patch, greater distance between PM line and reniform patch, and smoother or more lustrous overall appearance (compare images of both species at CBIF; also see photos of this and numerous related species by Jim Vargo at MPG)
Print References
Bird, H., 1902. New histories and species in Hydroecia. The Canadian Entomologist, 34(5): 112.
Powell, J.A. & P.A. Opler, 2009 Moths of Western North America. University of California Press, pl. 53, fig. 32; p. 296. (2)