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Rathke's Woodlouse - Trachelipus rathkii?? *Tentative ID<br />
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Habitat: Rotting log<br />
<figure class="photo"><a href="https://www.jungledragon.com/image/112186/rathkes_woodlouse_-_trachelipus_rathkii.html" title="Rathke&#039;s Woodlouse - Trachelipus rathkii??"><img src="https://s3.amazonaws.com/media.jungledragon.com/images/3232/112186_thumb.jpg?AWSAccessKeyId=05GMT0V3GWVNE7GGM1R2&Expires=1620259210&Signature=HWTaUR989uO0KjxMVd01eA9enKc%3D" width="200" height="154" alt="Rathke&#039;s Woodlouse - Trachelipus rathkii?? *Tentative ID<br />
<br />
Habitat: Rotting log<br />
https://www.jungledragon.com/image/112185/rathkes_woodlouse_-_trachelipus_rathkii.html Geotagged,Rathke&#039;s Woodlouse,Summer,Trachelipus rathkii,United States" /></a></figure> Geotagged,Isopoda,Oniscidea,Summer,Trachelipus,Trachelipus rathkii,United States,Woodlouse Click/tap to enlarge PromotedSpecies introCountry intro

    comments (8)

  1. Woah! Cool find (even if introduced)! Posted 4 days ago
    1. Thanks, it was cute! Posted 2 days ago
  2. Great right angles Posted 4 days ago
    1. Yes, it's always correct ;P. Posted 2 days ago
  3. Yes I also like the perfect right angle antenna. Posted 4 days ago
    1. This bug must be an ace at geometry. Posted 2 days ago
  4. Hi Christine, scratch the "tentative" ;o)
    Surprised to see I don´t have any images of that species here (lagging sooo much behind), so congrats on the species intro!!
    Cheers, Arp
    Posted yesterday
    1. Yay, thanks so much Arp! You do have this collage:
      Woodlice photo perspectives Examples of useful photo perspectives for ID when shooting woodlice.<br />
<br />
Always make sure you get a good view on the structure of head and tail(!)<br />
<br />
But of course other things are often useful too, such as:<br />
- Good views on head and and tail! (or am I repeating myself? ;o)<br />
- Colouration and surface sculpture (granulation etc.) of the whole animal<br />
- Ability to roll into a ball or not<br />
- A view on the ventral face of the pleon (hind body) to see the number of visible pseudotracheae<br />
- Shape and segmentation of the antenna and its flagellum <br />
- The shape of the hind corner of the first pereonite (1st. dorsal plate)<br />
That last point, combined with body outline at the pereon-pleon junction is also depicted here:<br />
https://www.jungledragon.com/image/80445/woodlouse_contour_shapes.html Armadillidium pulchellum,Cylisticus convexus,Isopoda,Ligidium hypnorum,Oniscidea,Trachelipus rathkii,Woodlouse,Woodlouse ID help


      I'd love to see your other photos of the species though, if you have time to share them! Isopods are so cute!
      Posted yesterday, modified yesterday

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''Trachelipus rathkii'', also known as Rathke's Woodlouse, is a species of woodlouse in the genus ''Trachelipus''. It can be found across Europe, except in the Mediterranean Basin. It has also been introduced to North America, where it can be found across most of the northern half of the United States and southern Canada.

Similar species: Brood Pouch Crustaceans
Species identified by Christine Young
View Christine Young's profile

By Christine Young

All rights reserved
Uploaded Apr 6, 2021. Captured Sep 7, 2020 08:32 in 5 East St, New Milford, CT 06776, USA.
  • Canon EOS 90D
  • f/5.6
  • 1/64s
  • ISO640
  • 100mm