Jump to content

Strange Zoology


Clonus

Recommended Posts

  • 3 weeks later...

Re: Strange Zoology

 

Another entry in Australia's catalogue of such horrors as spiders that eat snakes, snails that eat fish, and spiders that eat birds - a katydid that eats cicadas

 

Picture a male cicada, all dressed up for his first date. He's been enjoying an internet romance with a nice lady cicada, and is finally getting to meet her.

 

Instead, he finds a giant, spiky, and somewhat psychotic-looking katydid.

 

3313081435_c5ff6728ae.jpg

( photo by Robert Read )

 

Cicada
: OMGWTFBBQ. You're the chick I've been singing with?!?

Katydid
: Yup

Cicada
: But you're a grasshopper! And a bloke!!!

Katydid
: Katydid, actually. And it gets worse.

Cicada
: How?!?

Katydid
: Now I'm going to bite off your head and eat you

Cicada
: Aaaahhh!!!!!!!

Katydid
: OM NOM NOM NOM

 

And this happens all the time, because the Katydid Chlorobalius leucoviridis can mimic the female's part in the duet of at least 22 species - including species from New Zealand & the US it could never have met.

 

Soundbite of this aggressive acoustic mimicry here and here

 

more pics here and here

 

This behaviour was discovered by husband-and-wife team Dave Marshall & Kathy Hill and local colleague Max Moulds, who were in Australia to study cicadas of the Cicadettini tribe, in which the females respond to cues in the male's song with a noisy flick of her wings. Indeed, one of the best ways to catch Cicadettinine cicadas is to emulate the response with a snap of your fingers, and if you get the timing right the males will come running ( or flying, rather ).

 

It's just that the Katydids discovered the trick first.

 

Marshall & Hill were rather startled to find a large carnivorous katydid where they thought they were hearing a Kobonga oxleyi ( isn't that an AWESOME name? I could say it all day. Kobonga. Kobonga ) and Moulds somewhat agonized when they fed half his hard-sought cicadas to the things to prove that the katydids were luring them to their doom.

 

Original paper here, and New Scientist's article and video about them here.

 

The katydids also respond to coins being clicked together, and car indicators, so give them a few more years and maybe they'll start hunting humans too, just like everything else on this continent :D

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...