mysterysock
Member
As most of you may know, it is easy to sex a dubia nymph by turning them over and comparing the last segments in the abdomen - males having consistent sized segments, females possessing one larger segment at the end. But today, when I was playing with the roaches again, I noticed another way to sex them just by looking at them from the top. Notice the two predominant segments on their back, just below their head segment. The males will have protrusions that will extend caudally (backward) towards the bottom, and the females have more "straight" looking segments with less obvious protrusions. Hope this helps!
Blake
Blake