Buck%20Moth (Hemileuca%20maia) - The%20buck%20moth%2C%20Hemileuca%20maia%20%28Drury%29%2C%20is%20a%20member%20of%20Saturniidae%2C%20the%20giant%20silkworm%20family.%20Caterpillars%20%20have%20numerous%20multi-branched%20spines%20on%20their%20bodies%2C%20which%20are%20used%20defensively%2C%20delivering%20a%20sting%20when%20touched.%20This%20caterpillar%20is%20found%20on%20grasses%20and%20can%20be%20problematic%20for%20livestock%20in%20infested%20pastures.