These tiny, gnat-size beneficial insects will hardly be noticed by you, but they will ferociously hunt down and exterminate many varieties of flies, including horse flies! They are perfect to release around horses, garden areas, and trouble outdoor spaces. They will not bite, sting, or harm pets or humans. 
 
**Please note, these are live insects that can only be stored for a short time with refrigeration. Due to this, a 24 hour wait may be required while these are shipped from the insectary overnight. Thank you for your patience.**