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Insectoid denotes any creature or object that shares a similar body or traits with common earth insects and arachnids. The term is a combination of "insect" and "-oid" (a suffix denoting similarity). Compare "humanoid".
In technology, insectoid robots such as hexapods have been designed for scientific or military uses. Research continues to miniaturize these robots to be used as flying spies or scouts. Insectoid features may also increase the effectiveness of robots in traversing various terrains.
In ufology and conspiracy theories 
Abduction researcher Brian Thompson claims that a nurse acquaintance of his reported that during 1957 in Cincinnati she encountered a 3-foot-tall (0.91 m) praying mantis-like entity two days after a V-shaped UFO sighting. This mantis-like creature is reminiscent of the insectoid-type entity reported in some abduction accounts. He related this report to fellow researcher Leonard Stringfield. Stringfield told him of two cases he had in his files where separate witnesses reported identical circumstances in the same place and year.
Abduction researcher Karla Turner in her book Into the Fringe reported that a man called David remembered an encounter with a giant mantis during an hypnosis session.
Linda Moulton Howe in Glimpses of Other Realities describes some claims of alien mantis. The book includes the cases of Linda Porter and David Huggins. In 1988 Linda Porter remembered an abduction by alien mantis which she said took place when she was a child. In the same year 1988 David Huggins remembered an encounter with alien mantis that he said took place in the 1950s, when he was a child. The book report also the case of Jeanne Robinson, which said she have received messages by an alien similar to a mantis. According to Ms Robinson, these aliens are a branch of Greys.
Vicki Cameron in UFO experience in Canada reported a case of an abduction by an insectoid alien similar to a grasshopper.
On the Coast to Coast AM radio show (February 8, 2004), Major Ed Dames once described remote viewing data which seemed to indicate a sentient, insectoidal race on a distant planet. In response to the topic of orbs, "...he said that they were not related to ghosts, but rather an alien life form's continued "telepresence" on Earth. He went on to explain that an insect race, at a great distance from us, uses a kind of "psychoenergetic technology" to explore places in the universe."
Martin Kottmeyer argue the phenomenon of mantis alien may be explained by the effects of cultural factors. He remembered that in the movies The Deadly Mantis (1957) and Son of Godzilla (1968) appeared giant mantises, though they are not aliens. Kottmeyer remembered too that in the Saturday morning kid show Space Ghost (1966) appeared an alien mantis named Zorak.
In fiction 
Insectoid aliens are commonly found in science fiction, being featured in classic sci-fi novels like Starship Troopers and Ender's Game, as well as television shows such as Star Trek and Doctor Who. They also make an appearance in classic games such as Starflight, modern games like StarCraft and Warhammer 40,000 as well as the Star Wars universe. Examples of insectoid aliens in sci-fi anime are the "Uchuu Kaijuu" ("Space Monsters") from Gunbuster and the "Vajra" from Macross Frontier.
The 2009 film District 9 features Insectoid aliens known as "Prawns".
- Empress of the Racnoss (Doctor Who)
- Malmooth (Doctor Who)
- Time Beetle (Doctor Who)
- Vespiform (Doctor Who)
- Viperox (Doctor Who)
- Wirrn (Doctor Who)
- Zarbi (Doctor Who)
- The Alien (Lost Tapes)
- Xindi (Star Trek)
- Than (Andromeda)
- Irken (Invader Zim)
- Greg Pincus (The X-Files)
- Bugs (Starship Troopers)
- Bugs (Men in Black)
- Martians (Quatermass and the Pit)
- Prawns (District 9)
- Xenomorph (Alien, Aliens, Alien 3, Alien Resurresction, Alien Vs Predator, Aliens Vs Predator Requiem, Prometheus)
- Bugs (Starship Troopers)
- Thranx (Humanx Commonwealth series)
- Formics (Ender's Game)
- Raxxor (Scarred Warfare)
- Arachnids (Battlelords of the 23rd Century)
- Tyranids (Warhammer 40,000)
- Vespid (Warhammer 40,000)
- Klackons (Master of Orion)
- Mantis (Conquest: Frontier Wars)
- Ur-Quan Kohr-Ah (Star Control)
- Ur-Quan Kzer-Za (Star Control)
- Zerg (StarCraft)
- Nerubians (Warcraft III)
- Ing (Metroid Prime 2: Echoes)
- Luminoth (Metroid Prime 2: Echoes)
- Collector, Rachni (Mass Effect)
- Vrusk (Star Frontiers)
- Drones (Halo 2)
- Mantis (FTL:_Faster_Than_Light)
- "Scientists developing small robotic drones to become part of Air Force's arsenal". PhysOrg. 2008-09-17.
- "Insectoid robot mimics animal walking styles". TechRadar. 2007-07-25.
- Andrea Pritchard, David E. Pritchard, John E. Mack, Pam Kasey, Claudia Yapp- Alien Discussion: Proceeding of the Abduction Study Conference Held at M.I.T. Cambridge, North Cambridge Press, Cambridge, Massachusetts, 1995
- Karla Turner (1992). Into the Fringe. New York: Berkley Books. ISBN 978-0425135105.
- Linda Howe, Glimpses of Other Realities, Vol. I: Fact and Eyewitness, LMH,1993
- Linda Howe, Glimpses of Other Realities, Vol. II: High Strangeness, Paper Chase press, New Orleans, 1998
- Vicki Cameron, Don't tell anyone, but...UFO experiences in Canada, The General Store Publishing House, Burnstown, Ontario, 1995
- Coast to Coast AM, http://www.coasttocoastam.com/article/orbs-luminaries
- Martin S. Kottmeyer, Bugs Baroque, UFO Magazine, July/August 1997