Metatraxi

Metatraxi were an insectoid species.

Biology
Metatraxi had jet-black carapaces which were beetle-like. Their claws were large and similar to those of lobsters. (DW: Earth Aid)

Culture
The Metatraxi were unusual among warrior races in that they would only attack if attacked first, and would continually taunt their oponents until they were provoked into using a weapon. (DW: Earth Aid, Crime of the Century, The Enemy Uncovered)

Like other warrior races, the Metatraxi had a war fleet. (DW: Earth Aid)

Metatraxi killed by either strangling their opponents, or using identical weapons. (DW: Earth Aid, Crime of the Century)'

Metatraxi had very stereotypical views of women, believing them to be weak and incapable of battling. They considered it an insult if a woman challenged them to battle, and would flee. (DW: Earth Aid)

The Metatraxi would take their enemies to huge arenas, where they would taunt their enemies to death. This would involve a leading Metatraxi heavily insulting the individual they were taunting, getting incredibly personal and playing on all their darkest fears and personality faults. The Seventh Doctor was subjected to one of these ordeals. (DW: Earth Aid)

Metatraxi had voice translators, which they used to comunicate with other races. (DW: Crime of the Century)

Metatraxi ate their own parents on hatching. (DW: The Enemy Uncovered)

Early history
The Metatraxi were evolved by their own planet, Safensthome, as a way of fighting back the Grub. They were ideally suited to the planet, as they spent so much time going to other worlds fighting wars that they never used enough of the planet's resources, which was the original reason the Grub had to leave in the first place. (DW: Earth Aid)

20th century
In 1990, the Metatraxi attempted to invade Kafiristan but were met with resistance by Colonel Felnikov and his troops. The Doctor managed to antagonise them by messing with their voice translators. They were eventually left after their leader was defeated in combat. The Metatraxi later helped Katie Tollinger and Felnikov break into a secure facility before leaving the planet. (DW: Crime of the Century)

21st century
To be added. (DW: Blood and Iron)

35th Century
To be added. (DW: The Enemy Uncovered)

38th Century
In 558 DE, the Metatraxi were part of The Collective; an army of aliens that invaded Taoter III. (ELYM: Hostile Assault, To the Death

Undated events
Learning that the Space Vessel Vancouver was heading towards Safensthome with the Lilliput, the Metatraxi invaded the Lilliput, killing most of the crew, but sparing Victor Espinosa after he agreed to help them take the crew of the Vancouver to their arena in order to taunt them to death in exchange for money. They later attacked the Vancouver when it attempted to deliver the shipment of grain to Safensthome. Later, when the Grub returned to Safensthome, the planet ordered them and the Grub to get along and share the planet as the Grub were their brothers. The Metatraxi reluctantly agreed. (DW: Earth Aid)

Behind the Scenes
Originally, the Metatraxi were to be featured in World War, a stageplay by Ben Aaronovitch and Andrew Cartmel that was scrapped and replaced by Terrance Dicks' The Ultimate Adventure. (DWMSE 10)

List of Appearances
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Season 27 (1990)

 * Earth Aid
 * Crime of the Century
 * Blood and Iron (cameo)

Season 41 (2004)

 * The Enemy Uncovered

Season 4 (2018)

 * Hostile Assault (cameo)
 * To the Death (cameo)
 * }