For those not in the know, "Chapter 10" of The Mandalorian was directed by none other than Peyton Reed. Marvel fans surely will know Reed as the director of 2015's Ant-Man and its sequel, Ant-Man and the Wasp .
In the Ant-Man films, one of the core concepts is size shifting. Ant-Man himself wears a specialized suit that can not only shrink him down to miniscule scale but expand his height to that of a very tall building. But the title heroes aren't the only things that shrink in those films. A variety of objects and creatures also undergo various size-shifts; perhaps, most notably, the ants themselves.
In The Mandalorian 's tenth episode, Din Djarin pays a visit to Mos Eisley Cantina. There, he encounters mechanic Peli Motto (played by Amy Sedaris) in a high stakes game of Sabacc with a large, ant-like creature. Given Peyton Reed's past arachnid filmography, it's hard to imagine that this wasn't a reference to the Ant-Man franchise within the Marvel Cinematic Universe.
Comparing the final scene of 2018's Ant-Man and the Wasp to "Chapter 10" of The Mandalorian...
WHAT THIS MEANS
Considering Peyton Reed directed this episode and is also well known among fans as the director of the Ant-Man movies, this is much too close to be called a coincidence.
Little is known about this insectoid species within the context of the Star Wars universe. Pelli Motto calls him "Dr. Mandible" at one point, but it's unknown if that was just a nickname. His species also doesn't currently have a name, but one can bet that it's only a matter of time until a companion book or a tweet from someone with the Lucasfilm Story group provides additional information on the giant bug.
Despite the lack of information on this character, he does possess a neat looking design. His illuminated yellow eyes are very striking. It's likely that if Scott Lang existed within the Star Wars universe, he'd give him a name like H-ant Solo or Cobb V-ant.