| Aretaon | |
|---|---|
 | |
| Aretaon asperrimus , pair | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Phasmatodea |
| Superfamily: | Bacilloidea |
| Family: | Heteropterygidae |
| Subfamily: | Obriminae |
| Tribe: | Obrimini |
| Genus: | Aretaon Rehn, J.A.G. & Rehn, J.W.H., 1939 |
| Species | |
Aretaon is a genus of stick insects native to Borneo and the Philippine island Palawan.
The species of the genus Aretaon correspond in the habitus typical representatives of the Obrimini and are very similar in appearance to those of the genera Trachyaretaon and Sungaya . Like these, they are wingless in either sex. With a length of approx. 4.7 to 5.4 centimetres (1.9 to 2.1 in), the males remain smaller than the females which reach length from 7.2 to 8.8 centimetres (2.8 to 3.5 in). In egg-laying adult females, the abdomen in the middle is clearly thickened in height and width and thus almost circular in cross-section. As with the other genera of the Obriminae, an ovipositor at the end of the abdomen surrounds the actual ovipositor. It is ventral formed from the eighth sternite, which is called the subgenital plate or operculum and dorsally from the eleventh tergum, which here is called the supraanal plate or epiproct. [1] [2] [3] Unlike Trachyaretaon species, they have a pair of distinct spines in the front area of the mesonotum. In the metasternum there are no holes or pits or noticeable slits, which are common for representatives of the genera Brasidas , Euobrimus and Obrimus are typical. [4] [5]
The representatives of the genus described so far are native to the Malay part of Borneo. Aretaon asperrimus can be found in the north of the island, in the state of Sabah. [6] In addition, this species is said to be found also on Labuan and on the Philippine island Luzon, more precisely in Benguet. [4] Aretaon muscosus is in the further northwest located state Sarawak, more precisely in the Gunung Mulu National Park, but is also said to occur in Sabah. [7] On the Philippine island Palawan there are further specimens of Aretaon asperrimus, which differ in color from those native to Borneo. Her status was not initially clarified. Their affiliation to Aretaon asperrimus could be proven by genetic analysis published in 2021. [8] [9]
James Abram Garfield Rehn and his son John William Holman Rehn established the genus Aretaon in 1939 for two by Josef Redtenbacher as Obrimus asperrimus and Obrimus muscosus described species. Type species of the genus is Aretaon asperrimus. [4] [10] The name "Aretaon" is derived from Greek mythology borrowed and denotes, among other things, a defender Troy. Since the description of Aretaon muscosus was only based on a few very spine and very rich in lobes, 4.7 to 6.4 centimetres (1.9 to 2.5 in) long nymphs, their species status was long controversial. As early as 1935 Klaus Günther considered that these animals could be nymphs of Aretaon asperrimus. However, because of the pronounced spines and lobes of the smaller specimens, he considered this to be unlikely. Also Philip Edward Bragg, who had already made the experience that the spines and lobes adult of the Aretaon asperrimus is significantly reduced, mentioned this possibility in 2001, holding a synonymization but for too hasty. [6] In 2004 Oliver Zompro also mentioned that Aretaeon muscosus is very likely a synonym for Aretaon asperrimus. [5] Daniel Otte and Paul D. Brock finally used Aretaeon muscosus as a synonym in 2005. [11] As a result Aretaon became a monotypic genus. Francis Seow-Choen revalidated the species in 2016 because its types match perfectly with the specimens he found from the Gunung Mulu National Park. [7] [12]
As early as 1992 and 1996, Aretaon asperrimus was introduced for terraristics. Both stocks were collected at Kinabalu. The Phasmid Study Group gave this the PSG number 118. [13] [14] Another, color-distinguishable, sexual strain goes into fertilized female, which Joachim Bresseel collected in 2010 on Mount Gantung on Palawan. It was initially called Aretaon sp. 'Palawan' and received the PSG number 329. Since its identification in 2021 it has been referred to as Aretaon asperrimus 'Palawan'. [8] [9] [14]
In July 2014 Albert Kang collected another species in the Gunung Mulu National Park, which Thierry Heitzmann was able to breed successfully in 2015. The resulting stock is parthenogenetic and is called Aretaon sp. 'Mulu'. The species corresponds both in its appearance and in its locality to the specimens identified by Francis Seow-Choen as Aretaeon muscosus. [6]
Pulchriphyllium giganteum, commonly known as the Giant Malaysian Leaf insect, is a species of leaf insects described from Malaysia by Hausleithner in 1984 and placed in the genus Pulchriphyllium since 2021. Pulchriphyllium giganteum is the largest species belonging to the genus Pulchriphyllium reaching 105 mm in size. They are found most abundantly in the west Malaysian tropics. The females typically have large elytra that lie edge to edge on the abdomen and tend to lack hind wings making them usually flightless. Males have small elytra and sometimes transparent non-leaflike functional hind wings. Pulchriphyllium giganteum found in the wild tend to be mostly females and the first male of this species was not found until 1994. In captivity, the species has primarily been observed to reproduce through parthenogenesis meaning the females are asexual. The primary reproductive pattern in the wild is unknown. Eggs tend to be brown or black and glossy and resemble seeds. They hatch around 6 months after breeding. Newly hatched young nymphs tend to be wingless and brown or reddish in color. They develop their green color after feeding on leaves. Both the adult and larval stages are phytophagous meaning they feed on plants. The main plant food sources for this species are oak and bramble tree leaves.
The Heteropterygidae is a family of stick insects belonging to the suborder Euphasmatodea. Species can be found in Australasia, East and Southeast Asia. About 150 valid species have been described.
Datamini is the only tribe within the subfamily of the Dataminae from the order of the Phasmatodea. The representatives of this subfamily are on average not as large as those of the other two subfamilies belonging to the family of Heteropterygidae.
Heteropterygini is the only tribe within the subfamily of the Heteropteryginae. With 19 representatives described, this subfamily includes the fewest species of the three subfamilies, but includes the largest and most striking species of the family.
Epidares nolimetangere, the touch-me-not stick insect, is an insect species from the order of the Phasmatodea and the only representative of the genus Epidares. The species name nolimetangere comes from Latin and means "don't touch me". It refers to the prickly appearance of the animals.
The genus Dares, which is mainly native to Borneo, combines relatively small and mostly dark-colored Phasmatodea species.
The genus Planispectrum combines very small and compact species from Southeast Asia.
Hoploclonia is the only genus of the tribe Hoplocloniini and brings together relatively small and darkly coloured Phasmatodea species.
The Obrimini are the most species-rich tribe of the Phasmatodea family of the Heteropterygidae native to Southeast Asia.
Haaniella is a genus of the Phasmatodea family Heteropterygidae from Southeast Asia.
Trachyaretaon is a genus of stick insects native to the Philippines.
Brasidas is a genus of stick insects that is native to the Philippines and is named after the Spartan general Brasidas
Obrimus is a stick insect genus native to the Philippines. It is type genus for the tribe and the subfamily in which it is listed.
Aretaon asperrimus is a species of insect in the Aretaon genus of the Phasmatodea order. The sometimes used common name thorny stick insect is a bit misleading, since the species does not correspond to the typical stick-like habitus and many other species are thorny as well.
Orestes mouhotii is an insect species belonging to the order of Phasmatodea. Because of its synyonym Orestes verruculatus, it is the type species of the genus Orestes. Because of its compact body shape, the species is sometimes referred to as small cigar stick insect.
Aretaon muscosus is a stick insect species from the family Heteropterygidae, which is native to Borneo.
Hoploclonia cuspidata is a stick insect species native to the north of Borneo and is also called Brunei Hoploclonia stick insect.
Haaniella parva is a species of stick insect from the subfamily Heteropteryginae and belongs to the representatives of the genus Haaniella native to Sumatra. It is their smallest representative.
Pterobrimus is a monotypic genus of stick insects (Phasmatodea), containing the species Pterobrimus depressus, which is native to Fiji.
Obrimus bicolanus is a stick insect species from the family of the Heteropterygidae native to the southeast of the Philippine island of Luzon, more precisely in the Bicol Region.
