I've not heard of this brand, so I can't answer your precise question. But I was wondering, can you go by the colours of the printing, or are they indicative only? I mean, are they the actual colours, or have they been adapted to show the different colour areas better? If the print is the natural colouring, you could simply match the Anchor threads to that.
Two links of those I gave are to conversion tables. The names of the threads are written at the top of each in Latin letters, Ariadna is in both the tables. If you know Russian, their cross stitch forum may be of help:
stitch.su
But they ban people using any language other than Russian- it is in their rules. I am not registered there, so cant help you with it.
If you want to check the conversion of the conversion (ie from Anchor to DMC), let me know. I have the old conversion booklet from New Stitches, which is excellent and also gives an indication of whether the match is “good” or just ok.