Question: What is the family of the naked-backed fruit bat named after the region where Langila is located?

full_context: Document 1: Babase Island: Babase Island is an island of the Feni Islands in Papua New Guinea, located east of New Ireland. It consists of a stratovolcano and a lava dome, joined by an isthmus.
Document 2: Bagana: Bagana is an active volcano located in the centre of the island of Bougainville, Papua New Guinea, the largest island of the Solomon group. It is the most active volcano in the country, occupying a remote portion of central Bougainville Island. It is one of Melanesia's youngest and most active volcanoes.
Document 3: New Zealand long-tailed bat: The New Zealand long-tailed bat ("Chalinolobus tuberculatus"), also known as the long-tailed wattled bat or pekapeka-tou-roa (Māori), is one of 15 species of bats in the genus "Chalinolobus" variously known as "pied bats", "wattled bats" or "long-tailed bats". It is one of the two surviving bat species endemic to New Zealand, but is closely related to five other wattled or lobe-lipped bats in Australia and elsewhere.
Document 4: Mondrabet: Mondrabet is a large village on the island of New Britain, East New Britain Province, Papua New Guinea. The village lies in the south-western part of the Gazelle Peninsula, to the east of coastal village of Torin, upstream along the Torin River near its confluence with another river. It is also connected by dirt road to Matanakunai on the coast in the south-west.
Document 5: Langila: Langila is one of the most active volcanoes of New Britain, Papua New Guinea. It consists of four overlapping volcanic cones on the eastern flank of an older extinct volcano, Talawe. Talawe is the largest volcano in Cape Gloucester. There have been dozens of recorded eruptions since the 19th century from three separate volcanic craters at the summit of Langila. The most recent eruptive cycle of Langila began in August 2006 and continued into early 2007. Volcanic activity at Langila consists of Strombo-Vulcanian and Vulcanian eruptions and lava flows. Langila is one of the most active volcanoes in the Bismark archipelago. The smallest crater is crater number 3.
Document 6: Samoa: The Samoan islands have been produced by vulcanism, the source of which is the Samoa hotspot which is probably the result of a mantle plume. While all of the islands have volcanic origins, only Savai'i, the western most island in Samoa, is volcanically active with the most recent eruptions in Mt Matavanu (1905–1911), Mata o le Afi (1902) and Mauga Afi (1725). The highest point in Samoa is Mt Silisili, at 1858 m (6,096 ft). The Saleaula lava fields situated on the central north coast of Savai'i are the result of the Mt Matavanu eruptions which left 50 km² (20 sq mi) of solidified lava.
Document 7: Turrialba Volcano: Turrialba Volcano is an active volcano in central Costa Rica that has been explosively eruptive in recent years including 2016 and in January, March and April 2017. Visitors used to be able to hike down into the main crater, but increased volcanic activity in 2014 - 17, resulting in large clouds of volcanic ash, has caused the surrounding Turrialba Volcano National Park to close.
Document 8: Tore (volcano): Tore is a volcano located in the northern part of the island of Bougainville, Papua New Guinea. Violent Pleistocene eruptions produced two ignimbrite fans stretching west to the coast, and a 6 km by 9 km caldera. A post-caldera lava cone on the caldera's southern rim is the source of lava flows. Well-preserved features suggests a recent date for this cone and a nearby ash cone.
Document 9: Rabaul Airport: Rabaul Airport, also called Tokua Airport, is an airport serving Kokopo and Rabaul, the current and former capitals of East New Britain Province on New Britain island in Papua New Guinea.
Document 10: Seri's sheath-tailed bat: Seri's sheath-tailed bat ("Emballonura serii") is a species of sac-winged bat in the family Emballonuridae. It is found in the Bismarck Archipelago (Papua New Guinea) and Yapen Island (Indonesia). Its natural habitat is caves.
Document 11: Nyamuragira: It has been described as Africa's most active volcano and has erupted over 40 times since 1885. As well as eruptions from the summit, there have been numerous eruptions from the flanks of the volcano, creating new smaller volcanoes that have lasted only for a short time (e.g. Murara from late 1976 to 1977).
Document 12: Taal Lake: Taal Lake, formerly known as Bombón Lake, is a freshwater lake in the province of Batangas, on the island of Luzon in the Philippines. The lake fills Taal Caldera, a large volcanic caldera formed by very large eruptions between 500,000 and 100,000 years ago. It is the country's third-largest lake, after Laguna de Bay and Lake Lanao. Volcano Island, the location of Taal Volcano's historical eruptions and responsible for the lake's sulfuric content, lies near the center of the lake. There is a crater lake on Volcano Island. Known as the Yellow Lake or the Main Crater Lake, it contains its own small island, Vulcan Point. Vulcan Point was thought to be the largest third-order island in the world, but Treasure Island (Ontario) is much bigger and is thought to be the world largest, and is also on a freshwater lake.
Document 13: Teide: If measured from the ocean floor, it is at 7,500 m (24,600 ft) the highest volcano in the world base - to - peak outside of the Hawaiian Islands, and is described by UNESCO and NASA as Earth's third - tallest volcanic structure. Teide's elevation makes Tenerife the tenth highest island in the world. Teide is an active volcano: its most recent eruption occurred in 1909 from the El Chinyero vent on the northwestern Santiago rift. The United Nations Committee for Disaster Mitigation designated Teide a Decade Volcano because of its history of destructive eruptions and its proximity to several large towns, of which the closest are Garachico, Icod de los Vinos and Puerto de la Cruz. Teide, Pico Viejo and Montaña Blanca form the Central Volcanic Complex of Tenerife.
Document 14: Cave nectar bat: Cave nectar bat ("Eonycteris spelaea"), common names also include dawn bat, common dawn bat, common nectar bat and lesser dawn bat, is a species of megabat within the genus "Eonycteris". The scientific name of the species is first published by Dobson in 1871.
Document 15: New Britain naked-backed fruit bat: The New Britain naked-backed fruit bat ("Dobsonia praedatrix") is a species of megabat in the family Pteropodidae. It is endemic to New Britain island in northern Papua New Guinea.
ground_truth: Dobsonia
sub_queries: Langila >> part of Answer: New Britain
What family does New Britain naked-backed fruit bat belong? Answer: Dobsonia