yes happy with wriggler. Earthquake Beetle sounds cool...looking at the 2e statblock this could make for some interesting gameplay if we vaguely follow the earthquake mechanics.
here
well it could Grapple with mandibles on a successful Bite attack - then have Swallow as a bonus action that can be on any grappled creature?
updated female
here
(also "Wrigglers are flesh-eaters who actively hunts for food" - presumably "hunts" should be "hunt"...?)
Yep, looks good.
Also, I had
Breath Detector. The giant culicid is exquisitely sensitive to the chemical composition of the air, and can detect and locate creatures that breathe within a range of 300 feet.
from somewhere - given how good mosquitos are at detecting breath, would be good to...