this is the best i could find. it still doesn't help me much.
Sexing life centipedes is not easy, there are no clear signs on the overal look of centipedes to determine their gender. Genitals are situated inside the last segment underneath the ultimate legs. These genitals usually come out upon the centipedes death. Some external differences can be the shape of terminal legs (for example Sc.morsitans males have ridges on the prefemur, femur and tibia) or the pilosity of the ultimate legs (for example male Sc.dalmatica) Other external differences can be a slightly different coloration. Also it's common that females grow bigger and fatter then males.