Intended as showing "the main presence of the Cucuteni-Trypillian culture". 
No reference is given by the uploader. It may be that this represents the Middle phase of Cucuteni-Trypillian, c. 4000 BC, but this needs to be verified before the map can be used encyclopedically. 
The map appears to be based on File:Cucuteni Trypillian culture boundaries.PNG, which in turn appears to be loosely inspired by information on eliznik.org.uk.

See File:Cucuteni-Tripol'ye Culture Outline Map.png for a referenced map showing diachronic extent  (down to 3000 BC).
unreferenced
Shandris