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

Donate
Giving Tuesday, November 30. Please consider a gift to BugGuide!

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


TaxonomyBrowse
Info
ImagesLinksBooksData

Species Isophrictis similiella - Hodges#1702

1702  - Isophrictis similiella
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 Gelechioidea (Twirler Moths and kin)
Family Gelechiidae (Twirler Moths)
Subfamily Anomologinae
Genus Isophrictis
Species similiella (Isophrictis similiella - Hodges#1702)
Hodges Number
1702
Synonyms and other taxonomic changes
Isophrictis similiella (Chambers, 1872)
Gelechia similiella Chambers, 1872
Size
wingspan 7/16" (~11 mm) (Chambers, 1872)
Range
TX-IL, SK-MB - MPG
Season
Apr - Sept BugGuide data
Life Cycle
Larvae bore in the receptacle of sunflower (Helianthus) and black-eyed susan (Rudbeckia hirta) flowerheads. They burrow down the stem up to three inches to pupate, chewing an exit hole before pupating. (Braun 1921)
Black-eyed susan (Rudbeckia hirta) may not be a host plant for this species. Bottimer (1926) in his description of Isophrictis rudbeckiella, a species separated by genitalia, states "The species recorded by Braun as Isophrictis similiella Chambers, is presumably referable to the present species."
See Also
Isophrictis rudbeckiella is separated by genitalia (Bottimer 1926) or DNA. "Both species have the harpe of the male genitalia divided, but in the new species [rudbeckiella] it is nearly twice as long as in similiella." - Bottimer (1926)
Print References
Bottimer, L.J. 1926. Notes on some Lepidoptera from eastern Texas. Journal of agricultural research. 33(9): 808; fig 2, E (gen. - ♂) (I. similiella); 810 (I. rudbeckiella).
Braun, A.F. 1921. Notes on microlepidoptera with descriptions of new species. Entomological news, and proceedings of the Entomological Section of the Academy of Natural Sciences of Philadelphia. 32: 8 (presumably I. rudbeckiella, see Bottimer, 1926).
Chambers, V.T. 1872. Micro-Lepidoptera. The Canadian entomologist. 4: 193.