Fangs is the enforcer of the Planet Insectia, one of the seven secondary antagonists of Fullmetal Alchemist: Reborn and Arachnia's seventh born child. He is modeled after a Lynx Spider. 

Hell Spider (Character Unit)fmafnwiki2
Vital statistics
Aliases Dumb Beetle
Birthplace Insectia
Date of Birth Unknown
Age Unknown
Family Bullet Beetle (older brother)

Arachnia (mother) Beautifly (older sister) Lady Bomber (older sister) Waspia (older sister) Antastic (older brother) Mothro (older brother)

Affiliations Unknown
Alignment Unknown
Species Insectian
Occupation Insectian Enforcer
Rank Enforcer
Abilities Mouth beam, laser vision, super-speed, super-strength, savageness
Power Level Unknown
Weapons Spiky quills, razor-sharp claws, horns, spikes and fangs, armor-like limbs, communication quills, camouflage
Unique Trait Looks like a spider with hair
Goal Unknown
First Appearance Unknown
Voice Actor Shane Ray (FUNimation Dub)
Seiyū Yasuhiko Kawazu