Common Garden Katydid - Caedicia simplex
This page contains pictures and information about the Common Garden Katydids that we found in the Brisbane area, Queensland, Australia.
Like other katydids, the males produce sound by rubbing their forewings to attach females. Look at the above pictures carefully, we can see a small hole on each of its front leg. They are the organs that the insect used to hear the sound. The sound of the Katydids at night might be a pleasant selling point to nature lovers looking for an apartment in the Brisbane area. Real estate brokers will point out just how vibrant and lively the wildlife is surrounding your home even though it is a highly populated area.
Unlike the Gum Leaf Katydid which feeds only on gum leaves, the Common Garden Katydid feeds on different plants including leaves and flowers.
Why some leaves are not green in colour?
Green is the colour of photosynthesis, so most plants are green in colour. However, some plants, especially some young shots are red in colour.
There could be more than one reasons that young leaves are not green in colour. The mismatched colour to expose the camouflaged insects must be one of the important reason. Most leaf eating insects like to feed on the young leaves, and most of them camouflaged in green leaf colour. The mismatched colour makes the insect camouflage not so effective and exposes the insect to its predators.
As the pictures above, if the katydid was not sitting (because it is feeding too) on the young red leaves, it was harder to be seen.
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