The Rain Bugs are very beautiful insects due to their bright red velvet color and is a harmless spider species. The life cycle of this insect begins with the start of the rainy season when they appear in the UAE, Saudi Arabia, and in some desert areas of the Levant. They are also known as red velvet mites or true velvet mites and are found in soil litter. Adult Rain Bugs are small and are typically 4 mm in length.