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

Discussion of 2018 gathering

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

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington

TaxonomyBrowseInfoImagesLinksBooksData
Photo#107029
Pseudoscorpion. - Chelifer

Pseudoscorpion. - Chelifer
Atlantic Mine, Houghton County, Michigan, USA
April 28, 2007
Size: 3 mm
Found in the bathtub, looks like a very close match for Chelifer cancroides.

Images of this individual: tag all
Pseudoscorpion. - Chelifer Pseudoscorpion. - Chelifer Pseudoscorpion. - Chelifer

awesome pics
I like the detail. As for the ID, I can't do anything more with it.

 
Apparently there still isn't
Apparently there still isn't *enough* detail, though. I've been referring to the ID keys given by Sigurd Nelson ("A Systematic Study of Michigan Pseudoscorpionida (Arachnida)", The American Midland Naturalist, April 1975, Vol. 93, No. 2, pp. 257-301). Identification down to species requires the ability to look at the claws closely enough to count setae and distinguish the venom glands, which my claw closeup isn't *quite* good enough for.

With the detail that can be seen, and the note that Chelifer cancroides is a widespread species that is the one most commonly found in houses, I'd be reasonably confident that that's what it is.

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