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

Class Diplura - Two-pronged Bristletails

Japygidae species - Metajapyx subterraneus Haplocampa sp. nov - Haplocampa Insect Japygid Forcepstails, lateral head, thorax - Parajapyx isabellae Sabino campodeid Diplura Bristletail/Forcepstail
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Diplura (Two-pronged Bristletails)
Other Common Names
Diplurans
Synonyms and other taxonomic changes
Formerly classified as part of Order Thysanura (an older term, now replaced by Zygentoma).

Order Diplura was promoted to class Diplura when Entognatha was found to by polyphyletic.
Explanation of Names
Diplura: from "diplos" (double) + "oura" (tail)
Numbers
124 species in 23 genera in 5 families in North America listed at nearctica.com
4-5 families, 64-70 species in North America, according to Tree of Life and Insects of Cedar Creek
Size
2-50 mm, but most commonly 7-10 mm.
Identification
1-segmented tarsi, chewing mouthparts that are concealed in a pouch, and 2 appendages called cerci at the tip of the abdomen. (1)
Soft-bodied, elongated, slender. Head large, antennae longer than head. Eyes and ocelli absent. Wingless. Legs short, slender. Abdomen long and slender.
Range
Cosmopolitan
Habitat
Under leaves, stones, bark, or logs on the ground. (1). Secretive and nocturnal.
Food
They are part of the community of decomposers that help break down and recycle organic nutrients.
Life Cycle
Nymphs are diminutive versions of adults. (1)
Remarks
Original page for order Diplura contributed by tom murray with additional contributions by cotinis, Beatriz Moisset, Robin McLeod, Phillip Harpootlian, and Lynette Schimming.
See Also
Zygentoma are thicker, have more exposed mouthparts, and 3- or 4-segmented tarsi. (1).
Print References
(2)