Trachelipus rathkiiNon-native    Synonyms: Rathke's Woodlouse.
Kingdom Animalia   >   Phylum Arthropoda   >   Class Malacostraca   >   Order Isopoda   >   Family Trachelipodidae   >   Genus Trachelipus   

Description:

Key characteristics helpful for the identification are (1) the presence of two uropods, the pointed appendages that extend off the back of the posterior end; (2) the outside edge of the final main trunk segments is even with the outside edge of the first pleon segment; (3) the segments are covered with fine bumps; and (4) the presence of five, not two, pleopodal lungs on the vent.

There are 85 records in the project database.

View images at BugGuide

View taxon at iNaturalist

View taxon at NatureServe

Search Google Images

Search MBP Facebook posts (beta | requires login)


[View seasonality details]
GA AL WA FR CL MO HO BA BC HA CE PG AA CV CHSMKE QA CN TA DOWISOWO
A Trachelipus rathkii in Caroline Co., Maryland (1/1/2020). Photo by Dave Webb. (MBP list)

Trachelipus rathkii in Baltimore Co., Maryland (2/6/2017). Photo by Emily Stanley. (MBP list)

A Trachelipus rathkii in Howard Co., Maryland (2/9/2020). Photo by Dave Webb. (MBP list)

A Trachelipus rathkii in Cecil Co., Maryland (1/27/2019). Photo by Dave Webb. (MBP list)

A Trachelipus rathkii in Talbot Co., Maryland (1/1/2020). Photo by Dave Webb. (MBP list)

A Trachelipus rathkii in Queen Anne's Co., Maryland (1/1/2020). Photo by Dave Webb. (MBP list)

A Trachelipus rathkii in Frederick Co., Maryland (12/3/2017). Photo by Mark Etheridge. (MBP list)

A Trachelipus rathkii in Harford Co., Maryland (1/11/2020). Photo by Dave Webb. (MBP list)

A Trachelipus rathkii in Frederick Co., Maryland (12/13/2015). Determined by Hisserdude/BugGuide. Photo by Mark Etheridge. (MBP list)

A Trachelipus rathkii in Harford Co., Maryland (3/2/2019). Photo by Dave Webb. (MBP list)

A Trachelipus rathkii in Calvert Co., Maryland (2/23/2021). Photo by Dave Webb. (MBP list)

A Trachelipus rathkii in Baltimore City, Maryland (10/2/2021). Photo by Dave Webb. (MBP list)

A Trachelipus rathkii in Howard Co., Maryland (4/26/2014). Determined by Eric C. Maxwell/BugGuide. Photo by Ashley Bradford. (MBP list)

A Trachelipus rathkii (underside) in Howard Co., Maryland (4/26/2014). Determined by Eric C. Maxwell/BugGuide. Photo by Ashley Bradford. (MBP list)

A Trachelipus rathkii in Carroll Co., Maryland (12/1/2018). Photo by Dave Webb. (MBP list)

A Trachelipus rathkii in Harford Co., Maryland (5/10/2018). Photo by Dave Webb. (MBP list)

A Trachelipus rathkii in Harford Co., Maryland (11/11/2018). Photo by Dave Webb. (MBP list)

A pair of Trachelipus rathkii in Washington Co., Maryland (4/7/2019). Determined on BugGuide. Photo by Jim Moore. (MBP list)

A Trachelipus rathkii in Garrett Co., Maryland (5/12/2023). Photo by Dave Webb. (MBP list)

A Trachelipus rathkii in Allegany Co., Maryland (7/27/2023). Photo by Dave Webb. (MBP list)

A Trachelipus rathkii in Carroll Co., Maryland (12/24/2019). Photo by Dave Webb. (MBP list)

A Trachelipus rathkii in Baltimore Co., Maryland (1/18/2021). Photo by Dave Webb. (MBP list)

A Trachelipus rathkii in Washington Co., Maryland (6/17/2022). Photo by Dave Webb. (MBP list)

A Trachelipus rathkii in Howard Co., Maryland (2/27/2021). Photo by Dave Webb. (MBP list)

A Trachelipus rathkii in Montgomery Co., Maryland (4/14/2023). Photo by Dave Webb. (MBP list)

A sowbug, Trachelipus rathkii, collected in Beltsville, Maryland (10/16/2012). Preserved in a cuvette filled with hand sanitizer. Photo by USGS PWRC. (MBP list)

A Trachelipus rathkii in Carroll Co., Maryland (5/25/2023). Photo by Dave Webb. (MBP list)

A Trachelipus rathkii in Howard Co., Maryland (7/1/2015). Photo by Richard Orr. (MBP list)

A Trachelipus rathkii in Harford Co., Maryland (12/8/2017). Photo by Dave Webb. (MBP list)

A Trachelipus rathkii in Baltimore Co., Maryland (9/3/2018). Determined by Hisserdude/Bugguide. Photo by Sue Muller. (MBP list)

A Trachelipus rathkii in Caroline Co., Maryland (11/14/2021). Photo by Dave Webb. (MBP list)

A Trachelipus rathkii in Prince George's Co., Maryland (6/16/2023). Photo by Dave Webb. (MBP list)

A Trachelipus rathkii in Washington Co., Maryland (3/5/2017). Determined by Joshua Campos/BugGuide. Photo by Bill Hubick. (MBP list)

A Trachelipus rathkii in Allegany Co., Maryland (4/8/2017). Determined by Scott Loarie/BugGuide. Photo by Bill Hubick. (MBP list)

A Trachelipus rathkii in Anne Arundel Co., Maryland (6/6/2015). Verified by Eric Maxwell/BugGuide. Photo by Robert Aguilar, SERC. (MBP list)

A Trachelipus rathkii in Harford Co., Maryland (1/11/2020). Photo by Dave Webb. (MBP list)

A Trachelipus rathkii in Washington Co., Maryland (7/31/2022). Photo by Dave Webb. (MBP list)

A Trachelipus rathkii in Anne Arundel Co., Maryland (4/22/2018). Determined by Even Dankowicz/BugGuide. Photo by Bill Hubick. (MBP list)

Trachelipus rathkii in Montgomery Co., Maryland (4/29/2019). (c) Serenella Linares, some rights reserved (CC BY). Photo by Serenella Linares via iNaturalist. (MBP list)

A Trachelipus rathkii in Baltimore Co., Maryland (12/19/2018). Photo by Dave Webb. (MBP list)

Trachelipus rathkii in Queen Anne's Co., Maryland (5/1/2021). (c) Jim Brighton, some rights reserved (CC BY-NC). Photo by Jim Brighton. (MBP list)

A Trachelipus rathkii in Harford Co., Maryland (2/23/2020). Photo by Dave Webb. (MBP list)

Trachelipus rathkii in Baltimore Co., Maryland (10/29/2022). (c) A van den Beemt, some rights reserved (CC BY-NC). Photo by Adrienne van den Beemt. (MBP list)

Trachelipus rathkii in Baltimore Co., Maryland (10/29/2022). (c) A van den Beemt, some rights reserved (CC BY-NC). Photo by Adrienne van den Beemt. (MBP list)

Ventral view of Trachelipus rathkii in Calvert Co., Maryland (1/19/2022). Verified by Nathan Jones/iNaturalist. Photo by Dave Webb. (MBP list)

Trachelipus rathkii in Baltimore Co., Maryland (10/29/2022). (c) A van den Beemt, some rights reserved (CC BY-NC). Photo by Adrienne van den Beemt. (MBP list)

Trachelipus rathkii in Baltimore Co., Maryland (10/29/2022). (c) A van den Beemt, some rights reserved (CC BY-NC). Photo by Adrienne van den Beemt. (MBP list)

Trachelipus rathkii in Prince George's Co., Maryland (10/16/2012). (c) Sam Droege, some rights reserved (CC BY). Photo by Sam Droege. (MBP list)

Trachelipus rathkii in Kent Co., Maryland (3/17/2019). Photo by Lori Byrne. (MBP list)

A Trachelipus rathkii collected in Kent Co., Maryland (3/10/2019). First MBP record for the Eastern Shore. Photo by Bill Hubick. (MBP list)

A Trachelipus rathkii in Harford Co., Maryland (7/9/2017). Photo by Dave Webb. (MBP list)

A Trachelipus rathkii in Cecil Co., Maryland (5/15/2021). Photo by Dave Webb. (MBP list)


View All Images

Use of images featured on Maryland Biodiversity Project is only permitted with express permission of the photographer.