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

Cotton Springtail + E. atrocincta - Entomobrya

Cotton Springtail + E. atrocincta - Entomobrya
El Paso, El Paso County, Texas, USA
January 31, 2016
Size: 3 mm
I retrieved at least these 4 different-looking springtails and I suspected this group contained three species. Frans Janssens explained that it is only the cotton springtail and Entomobrya atrocincta (female plus two male forms). I wanted to include this image for size comparison.

Images of this individual: tag all
Cotton Springtail + E. atrocincta - Entomobrya Cotton Springtail + E. atrocincta - Entomobrya

Thanks Frans :)
Moved from Cotton Springtail.

Just keep explaining it to me. It'll sink in eventually--right before you change it all again, I'm sure. :)

Given that two species are represented, I've moved this back to genus.

I agree
you moved it up to genus level.
Is it possible to have 2 copies of the same image in Bugguide?
This image is particulary interesting given it shows 3 colour forms of the sexually dimorphic E. atroctincta: female + 2 forms of the male. In this respect it is a unique image. And a copy should be in place at the E. atrocincta level.

Good point.
I frassed a couple of "extra" copies of this image yesterday, as I considered them unnecessary. However, I think it would be okay to keep one here and post another to E. atrocincta (along with a detailed comment so folks know which individuals in the shot are indeed atrocincta).

I went to fish a copy out of Frass, but evidently Salvador deleted them already. So, Salvador, if you're monitoring this thread, feel free to post a copy to E. atrocincta.

Usually, I delete frassed images ASAP
I would like to label some of the springtails before resubmitting this image, for the benefit of the readers. I appreciate your interest in this photo. Thanks!

That would be excellent.

Entomobrya unostrigata + atrocincta
It is the dimorphic form of atrocincta given females and males are present. Even two forms of the male: with and without black thoracic band.
So, especially for Ken : this is E. atrocincta sensu Katz & al 2015

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