Lawn Shrimp from UK

weird jumping bug
Location: UK (Cornwall)
March 17, 2012 8:54 am
Seen this in the garden for the last few years (once disturbed, they jump about, somewhat clumsily). As you can see, they look almost marine-like.
Signature: Ant

Lawn Shrimp

Dear Ant,
Your terrestrial amphipod,
Arcitalitrus sylvaticus, has many marine relatives.  The species was accidentally introduced to various parts of the world from Australia, including “New Zealand, the British Isles, Florida and California” according to BugGuide.  These creatures proliferate in well watered gardens and they are commonly called Land Shrimp or House Hoppers.  The frequently enter homes during heavy rains, though they quickly dry out and die indoors.

32 thoughts on “Lawn Shrimp from UK”

  1. I have loads in my garden for a few years, and found your info here searching the internet as to what they are. I live in Brighton, East Sussex.

    Reply
  2. I’ve got thousands of these in my garden, lived in my current home two years, they’ve always been here. I’m in Gloucester, UK.

    Reply
  3. Suddenly appeared in my house in the last 10 days or so, on the Isle of Arran off the west coast of Scotland. The ones inside up until tonight, have all been dead and salmon coloured, but tonight I found about 6 indoors jumping about on my carpet and rug. Not nice! I don’t know where they’ve come from all of a sudden, I’ve not introduced any new plants recently, but they’re obviously getting into my living room through the sliding patio door somehow. I’m going to ensure that there are no plant pots outside the doors any more, that they’re all much further away from the house in future. At least they seem to die off quickly, I don’t relish sharing my lounge with any jumping insects!

    Reply
  4. Just found these in my garden in Peacehaven UK. Glad it is not a flea! Looks like one! A huge one! I left one on the deck in the sun and when I went to move it back to the soil it had died – in only about 20 seconds! Extraordinary. They seem harmless enough.

    Reply
  5. just discovered them in our back garden under pots .. we are in Northern Ireland…my kids loved them!! we nature journal so have come inside to sketch and record our findings.

    Reply
  6. I have just moved to Cornwall and have not seen these before so had to look it up. Found a dead one so just googled ‘jumpy shrimp bug’..it worked. Now I know. Lol.

    Reply
  7. I saw them in my garden at the start of summer. There are thousands.
    I read they are in the south but I live in the North East. ?

    Reply
  8. I saw them in my garden at the start of summer. There are thousands.
    I read they are in the south but I live in the North East. ?

    Reply
  9. Keep finding dead ones on the floor in my house in Northern Ireland. Glad to hear they are harmless/not a sign of a dirty home! 🙂

    Reply
  10. Just found a couple in my garden in North London. Never seen them before so looked them up and ended up on this page. Thanks!

    Reply
  11. We have found dozens dead in our conservatory (just outside Coventry).WE have damp garden so looks like good for them – probably recent heavy rains drove them in. Must be recent arrival as no seen before this year , although wehave had the odd woodlouse. Like Lesley lloked for whatthey were and arrived here

    Reply
  12. We moved into our house in Herne Bay, Kent almost two years ago. Our garden is paved with pots and we see dozens of lawn shrimps jumping around on the paving whenever we water the pots.

    Reply
  13. Found several dead on our down stairs floor…in the morning…seen a few live jumping about at night..we on the Isle of Lewis and live very near the shore…do not like sharing a house with them though :/

    Reply
  14. Lawn shrimps around the food waste bucket in my garden in east Sussex. Hard to get a good look as they don’t stay still for long.

    Reply

Leave a Comment