Haaniella saussurei
| Haaniella saussurei | ||||||||||||
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Haaniella saussurei , couple |
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| Scientific name | ||||||||||||
| Haaniella saussurei | ||||||||||||
| Kirby , 1904 |
Haaniella saussurei is a species of ghost horror in the family Heteropterygidae and is one of themembers of the genus Haaniella nativeto Borneo .
features
As is typical for all members of the genus, Haaniella saussurei has many pointed thorns on the body and legs as well as shortened wings in both sexes. The fore wings, designed as tegmina , completely cover the short hind wings. The latter are converted into stridulation organs and serve to ward off enemies. The females are often patterned light and dark brown in contrast, but can also only be dark. With increasing age, the contrast in the patterned females diminishes and the animals become darker. Egg-laying females have a noticeably plump abdomen , the end of which is formed by a spike-like laying apparatus that surrounds the actual ovipositor . The dorsal terminal of this laying spine is formed by the eleventh tergum . This structure, known as the supraanal plate, is characterized by four fine teeth in the females of Haaniella saussurei . Older stages of youth have a bright pink-red colored intermediate skin in the area of the hind and middle hips and partly also on the intermediate skin of the abdominal segments. The hind and middle hips themselves are light to steel blue. This conspicuous color is used as a warning, as the animals defend themselves with their thorny hind legs. The hind legs are stretched up together with the abdomen and collapse when touched so that they pinch an attacker. Females are much larger than the males at 127 to 132 mm. These are much slimmer, much more prickly on the back, and are only about 82 to 92 mm long. Immediately after the imaginal moult, they are usually dark brown, but then often become very light. Their forewings are dark brown at the base and almost white at the lateral edges. The middle and rear parts are also white with dark brown veins. The spines and joint membranes are often noticeably green. Both in the color of the body and the wings, they are very similar to the males of Haaniella grayii , although these usually show even more intense green tones. But while Haaniella grayii on the mesonotum has a pair of long spines in front and in the middle in addition to the characteristic four spines at the end, Haaniella saussurei lacks the pair of spines in the middle of the mesonotum. In adult males, not only are the green spines noticeable, but also the green, sometimes turquoise-green joint areas, especially on the rear hips, which are particularly prominent there through the red thigh ring.
Distribution and reproduction
The range of Haaniella saussurei is limited to the coastal areas in the west of the island of Borneo. Here the species was found in the southwest of the Malay state of Sarawak . The females lay the lemon-shaped, hairless eggs in the ground. These are 9 to 12 mm long, 7 mm high and about 6 mm wide.
Systematics
Henri de Saussure assigned the species in 1869 to the Heteropteryx grayii (now Haaniella grayii ) described ten years earlier by John Obadiah Westwood . William Forsell Kirby then created his own species and named it Haaniella saussurei in honor of Saussure . In 1906 Josef Redtenbacher still took the view that the animals belong to the genus Heteropteryx and called them accordingly. John WH Rehn synonymized the species with Haaniella echinata and described it again as Haaniella echidna using his own material . The latter was placed by Klaus Günther as a subspecies to Haaniella echinata . He also considered the animals processed by Redtenbacher to be a subspecies and called them Haaniella echinata saussurei (Redtenbacher). The following are to be regarded as synonyms:
- Syn. = Haaniella echidna Rehn, JWH , 1938
- Syn. = Heteropteryx grayi Saussure , 1869
- Syn. = Heteropteryx saussurei Redtenbacher , 1906
Terrariums
In the terrarium appeared Haaniella saussurei the first time in the second half of the 1990s. The breeding lines go back to animals that Philip E. Bragg and Ian Abercrombie collected in 1994 in Sarawak, more precisely in Tarum near Debak. The species received PSG number 177 from the Phasmid Study Group . Medium-sized terrariums are required to
keep Haaniella saussurei . In these, a substrate that is always slightly moist and suitable for laying eggs should cover the terrarium floor five to ten centimeters. The humidity and temperature in the terrarium should be rather high in order to do justice to the tropical origin of the animals. Blackberry , raspberry , ivy , oak , eucalyptus and Shallon shamberry leaves are eaten .
photos
male
high-contrast female
Eggs
Arrangement of the thoracic spines in a male
Web links
Individual evidence
- ^ A b Philip E. Bragg : Phasmids of Borneo , Natural History Publikations (Borneo) Sdn. Bhd., Kota Kinabalu, Sabah, Malaysia, 2001, pp. 90-93, ISBN 983-812-027-8
- ↑ Christoph Seiler, Sven Bradler , Rainer Koch: Phasmids - care and breeding of ghost horrors, stick insects and walking leaves in the terrarium . bede, Ruhmannsfelden 2000, p. 137, ISBN 3-933646-89-8
- ^ Paul D. Brock : Phasmida Species File Online . Version 2.1 / 4.0. (accessed on April 25, 2011)
- ↑ Phasmid page by Frank H. Hennemann & Oskar V. Conle ( Memento of the original from May 2, 2011 in the Internet Archive ) Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ Phasmid Study Group Culture List ( Memento from December 5, 2012 in the web archive archive.today ) (English)
- ^ Eugène Bruins: Illustrated Terrarium Encyclopedia - Dörfler Verlag, Eggolsheim 2006, p. 77, ISBN 978-3-89555-423-0
