Cockroach females often mate when they are still pale in color, just minutes after the molt to maturity. The first species this was noted in was Diploptera punctata in 1955 (Roth & Willis). This has not yet been documented in most species but has been seen in the majority that are kept in captivity. Please note what species you have seen this in (or when you see it in the future) and list whether the female is still white, has or has not inflated the wings fully, or is starting to gain some color. Photos of teneral mating are also welcome in this thread.