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Javanese grasshopper (Valanga nigricornis)

Wooden grasshoppers or wooden walang or Javanese grasshopper (Valanga nigricornis) are grasshopper species in Acrididae and have around 18 subspecies, most of which are endemic to various island groups in Indonesia. This insect has a very broad sexual dimorphism where males have a length of 45-55 millimeters and females 15-75 mm.

V. nigricornis is yellowish brown or yellowish or green with bluish black marks. The back wing is rose red when flying. The nymphs are pale green and dark. They live in forests, bushes and really like the leaves of the giant sensitive plant (Mimosa diplotricha) and giant sensitive tree (Mimosa pigra).

Dlium Javanese grasshopper (Valanga nigricornis)

Javanese grasshopper has one generation every year where four eggs are placed on moist soil in forest clearing. The eggs are not active throughout the dry season and it takes six to eight months to hatch.

The eggs hatch into nymphs and pass seven instar stages before becoming winged adults. Wood grasshoppers are solitary insects and do not form flocks, but outbreaks occur in dry years because heavy rains cause high mortality rates in eggs and nymphs.



V. nigricornis is used as a source of protein in Gunungkidul Regency, Yogyakarta Province, Indonesia, and inspiration for various traditional batik patterns. On the other hand, this grasshopper is a pest in several plantation areas and production forests.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Orthoptera
Family: Acrididae
Genus: Valanga
Species: V. nigricornis

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