| Tisamenus deplanatus | |
|---|---|
 | |
| Tisamenus deplanatus 'Pocdol', pair | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Phasmatodea |
| Family: | Heteropterygidae |
| Subfamily: | Obriminae |
| Tribe: | Obrimini |
| Genus: | Tisamenus |
| Species: | T. deplanatus |
| Binomial name | |
| Tisamenus deplanatus (Westwood, 1848) | |
| Synonyms [1] | |
| |
Tisamenus deplanatus is a stick insect species native to the Philippine islands Luzon and Mindanao occurs.
In 1845 John Obadiah Westwood first described the species as Phasma (Pachymorpha) deplanatum and transferred it to the genus Acanthoderus in 1859. A female is deposited as holotype in the Natural History Museum, London. In 1875 Carl Stål transferred the species as Tisamenus deplanatus to the genus he established Tisamenus . [1] In 1939 the genus Tisamenus was synonymized with the genus Hoploclonia , whereby the species as Hoploclonia deplanata. At the same time the genus Hoploclonia was divided into different groups according to morphological aspects. In the so-called Deplanata group, they placed with Hoploclonia deplanata, Hoploclonia cervicornis (today Tisamenus cervicornis ), Hoploclonia armadillo (today Tisamenus armadillo ), Hoploclonia spadix (today Tisamenus spadix ), Hoploclonia tagalog (today Tisamenus tagalog ) and Hoploclonia fratercula (today Tisamenus fratercula ), relatively unspined species, with a flat upper surface, which except for the supra coxal spines on the edges of the thorax show almost no spines, but at most teeth. [2] In 2004 the Filipino species were transferred back to the genus Tisamenus and only those occurring on Borneo were left in the genus Hoploclonia, the species was called Tisamenus deplanata. [3] In 2018 the ending of the species name was changed and since then the species is again referred to as Tisamenus deplanatus as in 1875 by Stål. [1]
After similar specimens became known from Ilocos, which were later identified as Tisamenus fratercula, it was briefly discussed whether both species are conspecific. In 2021, a study based on genetic analysis that included samples of both species shows that they are not conspecific and not as closely related as the 1939 grouping suggested. [4]
Tisamenus deplanatus is a squat, relatively unspined Tisamenus species with a flat top. The males are 35 to 38 millimetres (1.4 to 1.5 in), the wider females about 55 millimetres (2.2 in) long. On the flat head there is a distinct pair of supra orbital spines, which either consist of three interconnected tubercles or of a larger pair of tubercles with surrounding tubercles. On the right and left of the pronotum there are two closely spaced spines. On the relatively short mesothorax, which widens in a strongly trapezoidal shape towards the rear, there is the triangle formed by raised edges, which is typical of Tisamenus species. The base of this triangle is attached to the front edge of the mesonotum and is strongly raised. As an extension of the posterior tip of the triangle, a longitudinal ridge extends over the posterior two thirds of the mesonotum and the entire metanotum. In similar species, the triangle on the mesothorax is significantly longer, in Tisamenus fratercula about half as long as the mesonotum. In Tisamenus deplanatus it is almost equilateral and thus hardly reaches a third of the length of the mesonotum. On the lateral edges of the thorax there is only a pair of supra coxal spines formed as double spines at the widest point on the posterior edge of the metanotum. On the first three segments of the abdomen there are clear, on the fourth a barely visible pair of spines. The formation and arrangement of the spines is relatively the same in both sexes. In the case of the slimmer males, the relatively short and almost cylindrical abdomen is particularly noticeable. That of the females is almost as wide at the base as the metathorax at its widest point and tapers evenly to the tip of the secondary ovipositor. [2] [5] [6]
The females begin to lay eggs four to five weeks after moulting to imago. With a length of about 4 millimetres (0.16 in) and a width of 3 millimetres (0.12 in), these are relatively large. After about four to five months, the initially 16 millimetres (0.63 in) long, dark brown nymphs hatch. It takes the males about five months and the females six to seven months to become adult. [5]
The previously known distribution area includes the islands of Luzon and Mindanao. On Luzon, the stock currently held in Europe, among others, was found in the Pocdol Mountains. A female deposited in the National Museum of Natural History comes from Mindanao and was examined by Rehn and Rehn in 1939 for their work. Its place of discovery is only indicated with Surigao. Only the islands of the Philippines are named as the place where the female holotype was found. [1] [2] [5]
Thierry Heitzmann first collected the species in October 2009 in southern Luzon in the Pocdol Mountains, where he found it on Mount Pulog. He was able to find more specimens on Mount Osiao the following month. He also found the previously unknown males of the species. After successfully breeding the species, he distributed it to other breeders. In Europe it was first bred in 2012 by Bruno Kneubühler and distributed by him. The Phasmid Study Group lists it under PSG number 399. [7] It is very easy to keep and breed. Leaves of bramble or other Rosaceae are eaten, as well as cherry laurel, Gaultheria shallon (Salal) and hazel. [5] [6]
Sungaya is a monotypic genus of stick insects, containing the species Sungaya inexpectata. Its common name is the sunny stick insect, derived from the less commonly used sungay stick insect. The genus name refers to the locality of the holotype, i.e. the region where the insect was first collected. The species name is derived from the Latin as "inexpectatus" and means "unexpected".
The Heteropterygidae is a family of stick insects belonging to the suborder Euphasmatodea. Species can be found in Australasia, East and Southeast Asia. More than 130 valid species are descriebed.
The genus Orestes combines relatively small and elongated Phasmatodea species from Southeast and East Asia.
The Obriminae are the most species-rich subfamily of the Phasmatodea family Heteropterygidae native to Southeast Asia. It is divided into two tribe.
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 colored Phasmatodea species.
Orestes dittmari is a species of stick insects in the subfamily Dataminae.
The genus Tisamenus native to the Philippines combines small to medium-sized species of stick insects.
Trachyaretaon is a genus of stick insects native to the Philippines.
Eubulides is a stick insect genus native to the Philippines.
Orestes guangxiensis is a representative of the genus Orestes.
Orestes japonicus, a stick insect, is a representative of the genus Orestes.
Orestes krijnsi is a species of stick insects native to Vietnam.
Orestes subcylindricus is a species of stick insects native to Vietnam.
Orestes shirakii is a species of stick insects native to Taiwan.
Pylaemenes elenamikhailorum is a species of stick insects native in Sepilok on Borneo. In application of the more recent differentiation between the genera Pylaemenes and Orestes the species is sometimes also called Orestes elenamikhailorum.
Pylaemenes konkakinhensis is a species of stick insects native in Vietnam. The species is so far only known from a single female.
Trachyaretaon gatla is a species of Phasmatodea native to the Philippine island Palawan.
Tisamenus serratorius is a stick insect species that occurs on the Philippine island Luzon.
Tisamenus fratercula is a stick insect species native to the Philippine island Luzon.
Data related to Tisamenus deplanatus at Wikispecies
Media related to Tisamenus deplanatus at Wikimedia Commons