From Wiki
"The use of the worm is exclusive to mezcal, since the Mexican standards authority, Norma Oficial Mexicana (NOM), prohibits adding insects or larvae to tequila."
Apparently, mezcal is cheap liquor produced from agave but it doesn't have to meet the higher standards that tequila does. Many poor people in Mexico eat worms and grubs. It is considered an honor and a delicacy to get to eat the worm in the bottle.
The Cabo is good. Listen to that Lenny Kravitz........American Woman.......O.K. i'm back now. Have a buddy that sells the stuff along with others wholesale. I got a case of Cabo Silver and a case of Cabo gold. Both have a great taste. Jerry Garcia is on now..... Life is good
MeMike: I'll have some for ya at MMW.