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

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


TaxonomyBrowseInfoImagesLinksBooksData
Photo#166208
Springtail-like critters

Springtail-like critters
Minneapolis, Hennepin County, Minnesota, USA
October 27, 2007
These extremely small critters - springtails, I think, were running around the surface of this bulb that had just been dug up for overwintering purposes. When scraping the dirt away, I noticed lots of these running around. Any ID or suggestions for these? Thanks.

Moved
Moved from Springtails and allies.

Welcome to the new order.

Entomobryomorpha

 
New genus?
We don't have a page "Entomobryomorpha". Is this a new genus for the guide? Do we need to create a new page?

 
Not an expert
But from googling it looks as though Entomobryomorpha is a name (old?/alternate?/taxon level BG doesn't show?) for something along the lines of Elongate-bodied Springtails. I'm sure I will be corrected or something, but I just wanted to slow down the creation of guide pages - just in case.

 
Arthropleona = out-dated
In current Collembola taxonomy, Arthropleona is out-dated and replaced by Poduromorpha (elongated forms with prothoracic tergite present) + Entomobryomorpha (elongated forms with prothoracic tergite absent). The two latter form a paraphyletic grouping. Therefore Arthropleona is rejected. Only monophyletic groupings are accepted as 'natural' groupings in modern cladistic taxonomy. Other groupings are artificial aasemblages and therefore rejected.
Conclusion: BugGuide is using an out-of-date taxonomy for Collembola.
For a state of the art taxonomy, feel free to visit collembola.org

 
Thanks
I appreciate the detailed explanation. I think that we should start using the updated system ASAP. I found this forum discussion http://bugguide.net/node/view/168650

 
This is another can of worms...
Indeed, also Entognatha has been rejected. In summary: Entognatha is dropped and its members, that is Protura, Diplura and Collembola have been raised to Class rank. They are now considered at the same level as Insecta. Protura, Diplura, Collembola and Insecta are grouped in Hexapoda. This view is currently widely accepted. It would be best that BugGuide adopts to this state of the taxonomy.

The discussion now is about the paraphyly of Hexapoda. But here is no consensus yet. In short, based on molecular research mainly, Insecta and Crustacea seem both paraphyletic. And Collembola seem more related to Crustacea then to Insecta... But this discussion is still ongoing.
Interested readers can find a summary to the question 'Are Collembola terrestrial Crustacea?' here:
http://www.collembola.org/publicat/crustacn.htm

Looks like
Looks like Elongate-bodied Springtails (Arthropleona)

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