The Micropezidae are a moderate-sized family of acalyptrate muscoid flies in the insect order Diptera. Insects in this family are commonly called stilt-legged flies, after their characteristically long legs.
Stilt-legged flies are found in Baltic amber and rarely in Dominican. As far as I know, there have been no reported occurrences of stilt-legged flies in Mexican (Chiapas) amber. This is a first. I also think that this specimen is worthy of a paper due to no reported specimens in Chiapas amber.
The Stilt-legged fly in this piece is rather large, almost an inch long.