Phragmataecia castaneae, the reed leopard or giant borer, is a moth of the family Cossidae.

It is found in central and southern Europe, the Middle East, the Caucasus, Transcaucasia, Turkmenistan, Kazakhstan, north-western Iran, Iraq, Syria, Sri Lanka, Madagascar, India, Lebanon, Turkey, western China, south-western Siberia, Egypt, Tunisia and Morocco.

Antennae of male bipectinated (comb like on both sides) to two-thirds of length where the braches are short.

[3] The body of the larva is yellowish white with two purplish-brown lines on the back.

In control processes, seed cuttings are often treated with hot water at 50 °C for two hours.

In biological methods, Tumidiclava species can be introduced to the field, but it may be adapted to these predators.