Photo 15895773, (c) Chris Vynbos, some rights reserved (CC BY-SA)

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Attribution © Chris Vynbos
Cc by sa small some rights reserved
Uploaded by vynbos vynbos
Source iNaturalist
Original https://www.inaturalist.org/photos/15895773
Associated observations

Photos / Sounds

What

Cederberg Cave Katydid Cedarbergeniana imperfecta

Observer

vynbos

Date

May 2, 2016

Description

Cederberg Cave Katydid


Someone in our party had stumbled upon these huge 'cave crickets' on an earlier trip, and took us to see them. I was expecting a cricket, and was delighted to instead see huge katydids. This female was 60mm with her ovipositor. With her long legs spread out, was 150mm, her antennae as long again. They move quietly in the dark chambers made by a water course passing through boulders.
Getting home and looking it up I was happy to see that they were described by Piotr Naskrecki. He says they aren't predatory but move out of the caves at night and eat plants. These are the only known cave-dwelling katydids, from his blog:
"they are highly gregarious, often found in clusters of 20-30 individuals of various ages. The caves they prefer are cold, maintaining the chilly temperature of 12°C (54°F) throughout the year. Their habitat cannot be occupied by bats or hyraxes, which probably quickly do away with the tasty, surprisingly very slow-moving insects, thus limiting the number of available caves (interestingly, when exposed to higher temperatures they become phenomenal jumpers)."

Associated taxa
Sizes