This fly is often seen visiting flowers on order to obtain a carbohydrate meal. But It is most often associated a variety of animal dung, particularly that of cow and horse, on which the female will lay her eggs, and the larva will feed. Male S. fulgens are often more common on dung, as it here that they will wait for the females. In fact, males are so keen, that they will very often mount any visiting fly that bares a slight resemblance to another Sepsis, including other males, but they will quickly dismount again when the error is apparent. When a suitable mate is found the male will stay firmly attached to the female, and copulation will normally take place later and at another location. So attached are the pair that it usually takes a 180 degree maneuver for the couple to part company. Information source: http://en.wikipedia.org/wiki/Sepsis_fulgens