Two days after adult emergence from the pupal case, mating
can occur. A male black soldier fly intercepts a passing
female in mid-air and they descend in copula (Tomberlin
and Sheppard 2001). Male soldier flies utilize lekking
sites, where they await female soldier flies. These sites are
defended against other male soldier flies. When a male
intrudes upon the territory of a resting male, the resting
male seizes the intruder. After a brief descent, the invading
male will retreat.