Liquivore

Liquivores are animals that liquefy their food using digestive enzymes. Examples of liquivores are spiders and flies.

Flies
Flies use an oral tube to release their digestive juices onto their meal to transform it to a "soup" that is digestible. The fly inserts its proboscis which it can suck up as the insect feasts.

Spiders
Spiders wrap their prey around in silk and then waits for it to suffocate. The spider then bites into the wrapped victim and inserts enzymes that digest the victim and the spider sucks the juices out of the meal.