Don't fret; if dwarf pencils aren't available you can still be very successful using beckfordi as targets/dithers. Mama borellii will just have a little bit more work to do protecting the fry, but she should be just as successful.
If I am not mistaken, the male has white pigment on its dosal fins. Its dosal fin has three colors; red, white and black. But most of the time, the black and red colors are fading. If your tank is well planted and have black gravel, they show their best colors.