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

unidentified gall on Polymnia

Stem Gall on Leafcup Flies in stem swellings, Polymnia Swellings, Polymnia
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Acalyptratae")
Superfamily Tephritoidea
Family Tephritidae (Fruit Flies)
No Taxon unidentified gall on Polymnia
Remarks
No North American tephritid is recorded from Polymnia, but John van der Linden's photos of larvae and puparia indicate that a tephritid is responsible for these galls.