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 Papaipema silphii - Silphius borer moth - Hodges#9498

reared Papaipema silphii - Papaipema silphii Silphium Borer Moth - Papaipema silphii Papaipema, pre pupa - Papaipema silphii Papaipema from Silphium, dorsal - Papaipema silphii Papaipema from Silphium, spent pupa - Papaipema silphii Papaipema on Silphium - Papaipema silphii Papaipema, spent - Papaipema silphii Papaipema on Compass plant - Papaipema silphii
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 Noctuinae (Cutworm or Dart Moths)
Tribe Apameini
Genus Papaipema (Borer Moths)
Species silphii ( Silphius borer moth - Hodges#9498)
Hodges Number
Synonyms and other taxonomic changes
Papaipema silphii Bird, 1915
Phylogenetic sequence # 932511 (1)
Bird (1915) reported a wingspan of 47-52 mm.
Bird (1915) original description is online and linked in the print references.
Bird (1915) described the larvae pinkish with a large, brown head, and maturing to a length of 50 mm or more.
Cuthrell (2000) reported the species in Michigan, Missouri, Ohio, Illinois, and Wisconsin.
Moth Photographers Group map also includes Indiana, Iowa, Kentucky, and West Virginia. (2)
Papaipema silphii is found in prairie regions.
The main flight period is August to October. (2)
Bird (1915) listed Silphium terebinthinaceum (prairie rosinweed). Also Silphium laciniatum (Matthew Kenne and MJ Hatfield).
Life Cycle
Bird (1915) reported the larva enter the blooming stems and bore to the root system. They eat through the root and pupate in the soil.

Life Cycle images:
larva in Silphium stem, larva, pre pupa, pupa, adult
Print References
Bird, H., 1915. New species and histories in Papaipema SM. (Lepidoptera). The Canadian Entomologist, 47(4): 110.
Cuthrell, D.L. 2000. Special animal abstract for Papaipema silphii (silphium borer moth). Michigan Natural Features Inventory. Lansing, MI. PDF