Haaniella scabra

Haaniella scabra is a species of stick insect native to Borneo and a typical representative of the subfamily Heteropteryginae.

Both pairs of wings are shortened, with the forewings, which are designed as tegmina, completely covering the hindwings, which have been transformed into stridulation organs.

The underside of the sterna of the thorax is fawn brown and thus forms a clear contrast to the black colored membranes between the segments and joints.

In Haaniella scabra, the end of the supraanal plate is characterized by the presence of two to eight fine teeth.

Small, dark eyespots may be present on the upper side of the abdomen at about the level of the eighth abdominal segment.

[2][3] The distribution area of Haaniella scabra is limited to the high mountain regions around Mount Kinabalu in the center of the Malaysian state of Sabah, in the northern part of Borneo.

It shows the same defensive behavior, consisting of spreading the held up spiked hind legs and closing them when touched by an attacker.

[2][3][4][5] In 1906, Josef Redtenbacher initially described the species as Heteropteryx scabra,[6] thus ignoring the description of the genus Haaniella published by William Forsell Kirby in 1904.

As early as 1938, it was designated by John William Holman Rehn as a separate species and addressed as Haaniella scabra.

Although small to medium-sized terrariums are sufficient for keeping Haaniella scabra, the species is considered very delicate.

Diet is not a problem, because in addition to leaves from Rosaceae such as bramble, Crataegus and firethorn, oak, ivy and other plants are also eaten.