[5] P. nobilitatus has been found in Austria, Belgium, Czech Republic, Denmark, France, Germany, Hungary, Ireland, Italy, Luxembourg, Netherlands, Poland, Romania, Russia, Slovakia, Spain, Sweden, Switzerland, and the UK.

The P. nobilitatus species exhibits sexual dimorphism; females and males have distinctive wing markings.

The differences in the signaling organs can be found on the antennae, all legs, the wings, the cerci, and certain abdominal projections.

The courtship starts with the male doing short intervals of wing waving, and then he hovers in front of the female.

[6] There can be up to 20 wing waving displays, punctuated by rests where the male might take a small side step if the female isn’t moving.

[6] After wing waving the male will takeoff and he then hovers for a little in front of the female or starts to display flight.

[5]Similar to other flies in the Dolichopodidae family, the males' hypopygium is very prominent and movable by an intra-abdominal joint linked with a 180° inversion and the bending of the abdomen to start copulation.

[8] In studies, the flies don't seem particularly interested in the food source and only tend to capture the larvae when they are close by.

P. nobilitatus' diet consists of small crustaceans, insects, potworms and Culex pipiens larvae.

The Poecilobothrus nobilitatus is a popular fly for animal study because of its relatively large size, evident sexual dimorphism in wing markings, and its courtship and hunting displays on a 2-dimensional surface (water), allowing for more accurate and easy studying of the species.