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


Genus Diasemiodes

5172  - Diasemiodes janassialis Diasemiodes janassialis Diasemiodes nigralis Diasemiodes janassialis unknown moth - Diasemiodes nigralis Diasemiodes nigralis Diasemiodes janassialis Diasemiodes janassialis Moth - Diasemiodes janassialis
Show images of: caterpillars · adults · both
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Pyraloidea (Pyralid and Crambid Snout Moths)
Family Crambidae (Crambid Snout Moths)
Subfamily Spilomelinae
Genus Diasemiodes
Three species in our area. (1)
wingspan about 13 mm, based on photo by Jim Vargo at MPG
Adult: wings black with white lines; abdomen black with thin white band on each segment
Diasemiodes nigralis has less white on both wings than D. janassialis
See Also
Diasemiopsis leodocusalis has more white spots and speckling on both wings, more white on abdomen, and hindwing lacks white diagonal band projecting from costa toward outer margin
Diathrausta species have white patches on wings, not white lines (see images by Jim Vargo at MPG)
Internet References
live adult image of D. janassialis (Larry Line, Maryland)
pinned adult images of D. janassialis and collection site map (All-Leps)
pinned adult image of D. nigralis and photos of related species by Jim Vargo (Moth Photographers Group)
presence in Florida; list (John Heppner, Florida State Collection of Arthropods)
presence in Texas; list (James Gillaspy, U. of Texas)
Works Cited
1.Annotated check list of the Pyraloidea (Lepidoptera) of America North of Mexico
Scholtens, B.G., Solis, A.M. 2015. ZooKeys 535: 1–136. doi: 10.3897/zookeys.535.6086.