For a person, reptile with legs, insect (actor -um- & theme; s actor maN- & theme i-) to crawl.
Nan bannīah, ya unna iyādap an lumayaw.
As for a lizard it just crawls in running away.
Iyādapmun umuy ta adī'a mipa''u'.
You crawl in going so you won't bump your head.
For an insect, a person (actor & theme) to crawl on, over or into something (loc ref -on), as a floor, path, cave.