In terms of color, with the exception of a few species, red rose spiders are monochromatic in terms of size.

Female spiders: slightly larger than male spiders, but some species are quite different. To distinguish male and female spiders, it is easier to distinguish the spiders when they grow into adults or semi-adults. There are two pairs of book lungs in the abdomen of spiders , In the middle of the front pair of book lungs, there is a slightly sunken horizontal stripe, called the extragastric groove, and in front of the extragastric groove is the opening of the genitals.

Male spiders: The structure of the genitals of immature female spiders is not obvious, while the genitals of mature female spiders are specialized into a harder structure called ectoestrogen. Although this is the case, it is still not easy. However, the difference can be clearly seen from the shelling of the spider. The most accurate judgment is that after the male spider matures, there will be a sperm plug at the end of the tentacle next to its fangs, and the first pair of legs will be pierced. There is a small protrusion on the tibia, which is absent in female spiders.