It most certainly is a very interesting bird!
I've copy-pasted some history below, with some of my own thoughts tacked on at the end.
A parasol monoplane derivative of the Aviatik 30.27, the Aviatik 30.40 was powered by a similar 160hp Steyr Le Rhone 11-cylinder rotary engine, and only one prototype was built and flown during the summer of 1918. The Aviatik 30.40 was of wooden construction. The forward fuselage was covered by light metal panels and the remainder of the fuselage was ply covered. The wing had fabric skinning, and steel-tube bracing struts were employed.
I have seen some saying that the Steyr Le Rhone engine produced 150hp instead. Weighing just 586 kg fully loaded, it was also the lightest fighter ever built in Austro Hungary and apparently demonstrated a very promising performance during trials in the summer of 1918. Production was planned for Thone and Fiala, but plans were brought to a halt with the Armistice later that year.
Perhaps our real historians like Don Boose will have something for us?