Malaysian Leaf Katydid

Ancylecha fenestrata

Illustration of a leaf-like katydid with large green upper wings and transparent lower wings
Distribution:Malaysia
Size:70-75 mm body
Diet:Various leaves

Whilst not necessarily obvious when splayed out as in my illustration, these katydid’s are excellent leaf mimics. As with leaf insects, some may even have brown, irregular edges to their tegmina (forewings) which resemble the dying edges of leaves.

Interestingly, first instar nymphs have a number of red patches on their bodies which, when contrasted with their more typical green, make them partially resemble the shape of a spider. This is likely a form of defensive mimicry. Once they’ve grown out of this awkward experimental spider phase (we’ve all had one), they settle into their green leafy appearance.

Take a closer look…

Close up showing detail of the katydid's spiky brown leg and green body
Close up showing the delicate transparent lower wings