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

Information, 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

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa


Packwood, Lewis County, Washington, USA
August 16, 2018
Size: 1-2 mm
This looks like a Poduromorpha but with a hint of Entomobryomorpha. On a lit cloth at night adjacent to mixed conifer and deciduous woods.

Images of this individual: tag all
Collembola Collembola


Could be Ceratophysella or Hypogastrura.
To distinguish Poduromorpha and Entomobryomorpha check the presence of the protergum. That is the tergum (dorsal part) of the prothorax (1st thoracic segment).
In Poduromorpha the protergum is present.
In Entomobryomorpha it is absent.
So in principle in Poduromorpha there are 9 trunk segments, while in Entomobryomorpha max 8 (but often less due to fusion of segments).

Comment viewing options
Select your preferred way to display the comments and click 'Save settings' to activate your changes.