From Gooey Mass you can get:
10x Larvae - around 21% chance
2x Platinum coin - around 20% chance
2x Black Pearl - around 16% chance
Orichalcum Pearl - Around 18% chance
2x Great Mana Potion - around 10% chance
2x Health Mana Potion - around 10% chance
Gold Ingot - around 3%
Hive Scythe - less than 1%
Four-Leaf clover - less than 1%
Please focus on that I made my own statistics by opening 700 Gooey Masses.
Ps. Honestly if you just want to get Ladybug then it's better to sell Gooey Masses and buy for this money .