👉 A blockholer is a species of insect in the family Hemiptera, also known as the blackfly or yellow fly. They are commonly found in gardens and lawns where they feed on plants, particularly those with thorns. Blockholers have large, flat bodies that resemble small spiders, but their eyes are actually pheromones that help them find food by sending signals to other insects like ants and bees. This behavior is a key component of the pest control strategies used in