| Obrimus mesoplatus | |
|---|---|
 | |
| Obrimus mesoplatus, male holotype from the NHM | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Phasmatodea |
| Family: | Heteropterygidae |
| Subfamily: | Obriminae |
| Tribe: | Obrimini |
| Genus: | Obrimus |
| Species: | O. mesoplatus |
| Binomial name | |
| Obrimus mesoplatus (Westwood, 1848) | |
Obrimus mesoplatus is a stick insect species from the family of the Heteropterygidae native to the Philippine island of Luzon. [1] [2]
Obrimus mesoplatus is so far only known from a single specimen, namely the male holotype. In this case too, the slits in the metasternum (metasternal pseudoforamina) typical of the genus Obrimus are very narrow and barely recognizable. The male is a good 5.3 centimetres (2.1 in) long. This makes Obrimus mesoplatus the smallest species of the genus. The male has three pairs of spines on its head. There is a larger pair of spines on the pronotum. One pair of spines on the frontal edge and one in the middle of the mesonotum are hardly smaller. The front and rear edges of the metanotum also have a similarly large pair of spines. There are small pairs of spines on the second to fourth tergum of the abdomen. Triangular elevations (lobes) are located in the middle of the sixth to ninth abdominal tergum. Obrimus quadratipes lacks both the middle pair of spines on the mesonotum and the spines on the front and the triangular lobes on the rear abdominal segments. [1] [2] [3] [4]
In the first description, only the Philippine Islands are mentioned as the location. [3] Since the genus is so far only known from Luzon, more recent works assume that Obrimus mesoplatus is also endemic there. [1]
John Obadiah Westwood described the species in 1848 as Phasma (Acanthoderus) mesoplatus. The chosen species name "mesoplatus" is not explained. Westwood depicts a male and describes it. [3] In 1859, like many others, he transferred the species to the former subgenus Acanthoderus , which is now listed as a genus, and here again describes the male, [5] which is kept as the holotype at the Natural History Museum in London. [2]
Carl Stål transferred the species in 1875, along with two other Westwood species from the genus Acanthoderus, to the genus Dares , which had been established for Dares validispinus . [6] Of the other two species, Dares ulula has remained in this genus, while Dares otys is now listed as Pylaemenes otys . [2] Ignacio Bolívar mentioned in 1890 when describing Obrimus quadratipes its similarity to Acanthoderus mesoplatus and pointed out that he also saw this more in Obrimus and not in Dares like Stål. [4] William Forsell Kirby finally transferred Acanthoderus mesoplatus in 1904 as the third representative alongside Obrimus bufo and Obrimus quadratipes in the genus Obrimus described by Stål in 1875. [7]
Josef Redtenbacher also worked on the species in 1906. He assigned it as a synonym of Obrimus bufo and obviously used its holotype to describe the morphology and size of the males of Obrimus bufo. [8] This synonymization was withdrawn in 1939 by James Abram Garfield Rehn and his son John William Holman Rehn and the species was transferred back to the genus Obrimus as Obrimus mesoplatus. [9]
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.
Pylaemenes is a genus of stick insects in the family Heteropterygidae and subfamily Dataminae. It combines small to medium-sized, often brightly colored Phasmatodea species. Their representatives are found in large parts of Southeast 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 Dares, which is mainly native to Borneo, combines relatively small and mostly dark-colored Phasmatodea species.
Hoploclonia is the only genus of the tribe Hoplocloniini and brings together relatively small and darkly coloured Phasmatodea species.
Aretaon is a genus of stick insects native to Borneo and the Philippine island Palawan.
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.
Theramenes is a genus of medium-sized stick insects in the tribe Obrimini, which is native to the Philippines and to the Indonesian Talaud Islands.
Dares ulula is a species of stick insects. Like most other members of the genus Dares, the species is native to Borneo, more precisely in the northwest of the island. The males are extremely prickly even for the representatives of the genus Orestes. Females are colored with a relatively high contrast.
Brasidas foveolatus is a species of stick insects from the family Heteropterygidae native to the Philippine archipelago Mindanao.
Heterocopus is a monotypic stick insect genus, containing Heterocopus leprosus as the only valid species.
Brasidas cavernosus is a representative of the stick insects native to the Philippine island Luzon. It is considered one of the largest species in the subfamily Obriminae.
Pterobrimus is a monotypic genus of stick insects (Phasmatodea), containing the species Pterobrimus depressus, which is native to Fiji.
Tisamenus draconinus is a species of stick insect in the family Heteropterygidae native to the Philippines.
Tisamenus ranarius is a stick insect species (Phasmatodea), in the family of the Heteropterygidae native to the Philippines.
Brasidas lacerta is a species of stick insect in the family Heteropterygidae which is endemic to Mindanao. Due to its extreme variability, and the nymphs being spinier than to the adults, the species has been described under other names, resulting in a total of seven synonyms.
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.
Obrimus bufo is a stick insect species from the family of the Heteropterygidae native to the Philippine island of Luzon.
Obrimus quadratipes is a stick insect species from the family of Heteropterygidae native to the Philippine island of Luzon.
Media related to Obrimus mesoplatus at Wikimedia Commons