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Trachyaretaon Tumandok
''Trachyaretaon'' is a genus of stick insects native to the Philippines. Description The representatives of this genus correspond in the habitus typical representatives of the Obrimini and are very similar in appearance to the species of the genera ''Aretaon'' and ''Sungaya''. Like these, they are wingless in either sex. The males of the previously known species are around in length and are smaller than the females which are in length. 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, a secondary ovipositor at the end of the abdomen surrounds the actual ovipositor. It is ventral formed from the eighth sternite, which is called subgenital plate or operculum and dorsally from the eleventh tergum, which here is called the supraanal plate or epiproct. In contrast to ''Aretaon'' species, those of the genus ''Trachyaretaon'' lack the clear sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trachyaretaon Bresseeli
''Trachyaretaon bresseeli'' is a species of stick insects in the family Heteropterygidae. It is native to the Philippine island Luzon. Description The medium-sized, stocky species is similar to '' Trachyaretaon mangyan'' native to Mindoro and the '' Trachyaretaon nakatago'', which also occurs in northern Luzon. The long females are very variable in color. Although medium brown colors with darker and lighter components usually dominate, various tones from dark to medium brown to yellow brown and ocher to olive can also be found. The terga two to four of the abdomen are usually darker in color than the other segments and have a characteristic inverted V-shaped black marking laterally. The pronotum is usually lighter in color than the rest of the thorax and has two faint dark and closely spaced parallel longitudinal stripes. The mesonotum shows a more or less distinct pale cream or straw-colored, triangular anterior marking. The body structure is rather poorly developed a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sternite
The sternum (pl. "sterna") is the ventral portion of a segment of an arthropod thorax or abdomen. In insects, the sterna are usually single, large sclerites, and external. However, they can sometimes be divided in two or more, in which case the subunits are called sternites, and may also be modified on the terminal abdominal segments so as to form part of the functional genitalia, in which case they are frequently reduced in size and development, and may become internalized and/or membranous. For a detailed explanation of the terminology, see Kinorhynchs have tergal and sternal plates too, though seemingly not homologous with those of arthropods.Sørensen, M. V. et al. Phylogeny of Kinorhyncha based on morphology and two molecular loci. PLoS One 10, 1–33 (2015). Ventrites are externally visible sternites. Usually the first sternite is covered up, so that vertrite numbers do not correspond to sternid numbers. The term is also used in other arthropod groups such as crustaceans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Visayas Islands
The Visayas ( ), or the Visayan Islands (Visayan: ''Kabisay-an'', ; tl, Kabisayaan ), are one of the three principal geographical divisions of the Philippines, along with Luzon and Mindanao. Located in the central part of the archipelago, it consists of several islands, primarily surrounding the Visayan Sea, although the Visayas are also considered the northeast extremity of the entire Sulu Sea. Its inhabitants are predominantly the Visayan peoples. The major islands of the Visayas are Panay, Negros, Cebu, Bohol, Leyte and Samar. The region may also include the provinces of Palawan, Romblon, and Masbate whose populations identify as Visayan and whose languages are more closely related to other Visayan languages than to the major languages of Luzon. There are three administrative regions in the Visayas: Western Visayas (pop. 7.9 million), Central Visayas (8 million) and Eastern Visayas (4.5 million). The Negros Island Region existed from 2015 to 2017, separating Negros Occid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dalupiri Island (Cagayan)
Dalupiri Island is an island in the Babuyan Islands in Luzon Strait north of Luzon Island in the Philippines. The whole island makes up the barangay of Dalupiri, which is part of the municipality of Calayan in Cagayan province, which had 621 inhabitants in 2020, up from 611 in 2010. The island can reached by boat from the Port of Aparri. Geography Dalupiri Island lies about north of Luzon and about north of Fuga Island. The island has an elongated elliptical shape orientated along a north–south axis, the island has a length of about , with a width of about at its widest point. The topography of the island is characterized by a flat hilly landscape, in the center of the island, the terrain rises to above sea level. The island has an area of . The longest river of the island is the Manolong River, about 2.5 km long. The vegetation of the island consists partly of dense, tropical vegetation, and partly agricultural land. The largest animals on the island are the Carabao and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calayan Island
Calayan Island is located about west-south-west of Babuyan Island off the north coast of the Philippines and belongs to the Babuyan Islands group in the Luzon Strait. The island is hemmed between Aparri and Batanes islands and it is larger than the Fuga Island, which is away. Calayan is home to the Calayan rail, a flightless bird identified as a separate species in 2004 and endemic to Calayan Island. The island is part of the Municipality of Calayan. History The name of the island came from the Ibanag language, literally mean "''where laya (ginger) is abounded''". A mission headquarters was established on Calayan Island in 1722. During the Spanish colonial administration regime, the administrators were Don Licerio Duerme in 1896, Don Pedro Abad in 1897, and Don Angel Escalante during 1898–1902. Administratively, the Calayan island was part of the Batanes group of islands. From 1902, Calayan was brought under Cagayan Province. However, this change of administrative control r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Babuyan Islands
The Babuyan Islands ( ), also known as the Babuyan Group of Islands, is an archipelago in the Philippines, located in the Luzon Strait north of the main island of Luzon and south of Taiwan via Bashi Channel to Luzon Strait. The archipelago consists of five major islands and their surrounding smaller islands. These main islands are, counterclockwise starting from northeast, Babuyan, Calayan, Dalupiri, Fuga, and Camiguin. The Babuyan Islands are separated from Luzon by the Babuyan Channel, and from the province of Batanes to the north by the Balintang Channel. Geography The archipelago, comprising 24 volcanic-coralline islands, has a total area of about . The largest of these is Calayan with an area of , while the highest peak in the island group is Mount Pangasun () on Babuyan Claro. Islands The following are the islands of Babuyan and their adjoining islets and rocks, along with land areas and highest elevation: Geology The eastern islands of the archipelago are part of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luzon
Luzon (; ) is the largest and most populous island in the Philippines. Located in the northern portion of the Philippines archipelago, it is the economic and political center of the nation, being home to the country's capital city, Manila, as well as Quezon City, the country's most populous city. With a population of 64 million , it contains 52.5% of the country's total population and is the fourth most populous island in the world. It is the 15th largest island in the world by land area. ''Luzon'' may also refer to one of the three primary island groups in the country. In this usage, it includes the Luzon mainland, the Batanes and Babuyan groups of islands to the north, Polillo Islands to the east, and the outlying islands of Catanduanes, Marinduque and Mindoro, among others, to the south. The islands of Masbate, Palawan and Romblon are also included, although these three are sometimes grouped with another of the island groups, the Visayas. Etymology The name ''Luz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palawan
Palawan (), officially the Province of Palawan ( cyo, Probinsya i'ang Palawan; tl, Lalawigan ng Palawan), is an archipelagic province of the Philippines that is located in the region of Mimaropa. It is the largest province in the country in terms of total area of . The capital city is Puerto Princesa. Palawan is known as the Philippines' ''Last Frontier'' and as the Philippines' ''Best Island''. The islands of Palawan stretch between Mindoro island in the northeast and Borneo in the southwest. It lies between the South China Sea and the Sulu Sea. The province is named after its largest island, Palawan Island (), measuring long, and wide."Palawan – the Philippines' Last Frontier" ''WowPhilippines''. Accessed August 27, 2008. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metasternum
The metathorax is the posterior of the three segments in the thorax of an insect, and bears the third pair of legs. Its principal sclerites ( exoskeletal plates) are the metanotum (dorsal), the metasternum (ventral), and the metapleuron (lateral) on each side. The metathorax is the segment that bears the hindwings in most winged insects, though sometimes these may be reduced or modified, as in the flies ( Diptera), in which they are reduced to form halteres, or flightless, as in beetles ( Coleoptera), in which they may be completely absent even though forewings are still present. All adult insects possess legs on the metathorax. In most groups of insects, the metanotum is reduced relative to the mesonotum. In the suborder Apocrita of the Hymenoptera, the first abdominal segment is fused to the metathorax, and is then called the propodeum. See also *Glossary of entomology terms *Insect morphology *Mesothorax *Prothorax *Thorax (insect anatomy) The thorax is the midsection ( tagma) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Obrimus (insect)
''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. Characteristics The species of this genus correspond in the habitus to the other representatives of the Obrimini, appear somewhat longer-legged compared to these and also have longer antennae than these. Like almost all other Obrimini, they are wingless in either sex. They are similar in size and appearance to the species of the genera ''Brasidas''. As with these, the females have a relatively long and straight ovipositor that surrounds the actual ovipositor. Most Obrimus species have more and more pointed spines, which, however, are often thinner than those of most other Obrimini species. Compared to the representatives of ''Brasidas'' and ''Euobrimus'' there are only poorly or partially barely recognizable, flat slits or pits and none holes at the outer edge of the metasternum. The shape of the eggs also differs significantly from that of ot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brasidas (insect)
''Brasidas'' is a genus of stick insects that is native to the Philippines and is named after the Spartan general Brasidas Characteristics The representatives of this genus correspond in the habitus (biology), habitus typical representatives of the Obrimini and are similar in appearance to ''Obrimus (insect), Obrimus'' species. A pair of very conspicuous holes or pits in the metasternum is characteristic of this genus. Similar indentations can otherwise only be found in the representatives of the genus ''Euobrimus''. The males of the previously known species are about in length, and are significantly smaller than the approximately long females. In egg-laying adult females, the Abdomen (insect anatomy), abdomen in the middle is clearly thickened in height and width. A secondary ovipositor at the end of the abdomen surrounds the actual ovipositor. It is ventral formed from the eighth sternite, here named subgenital plate or operculum and Dorsal (anatomy), dorsally from the elev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesonotum
The mesothorax is the middle of the three segments of the thorax of hexapods, and bears the second pair of legs. Its principal sclerites (exoskeletal plates) are the mesonotum (dorsal), the mesosternum (ventral), and the mesopleuron (lateral) on each side. The mesothorax is the segment that bears the forewings in all winged insects, though sometimes these may be reduced or modified, as in beetles (Coleoptera) or Dermaptera, in which they are sclerotized to form the elytra ("wing covers"), and the Strepsiptera, in which they are reduced to form halteres that attach to the mesonotum. All adult insects possess legs on the mesothorax. In some groups of insects, the mesonotum is hypertrophied, such as in Diptera, Hymenoptera, and Lepidoptera), in which the anterior portion of the mesonotum (called the mesoscutum, or simply "scutum") forms most of the dorsal surface of the thorax. In these orders, there is also typically a small sclerite attached to the mesonotum that covers the wing ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
