It is established, that mites of genus. Rhyncaphytoptus from Betula pubescens sampled in reserve "Kivach", similar on Rh. ulmivagrans – the elm long-nosed mite. Sampled form constantly lives on birches. Research winter females of the birch mites has shown, that probably it is an independent species, but for it's description is necessary to investigate summer individuals. Found mites are close to the species described from China from Betula platyphylla – Rh. betulae. Hence, is base to believe, that on birches, as well as on elms, the complex of species of gen. Rhyncaphytoptus probably lives. Some researchers (Amrine et al., 2003) consider Rh. halli as a synonym of Rh. ulmivagrans. The study of these mite's morphology shows that Rh. halli is independent species and should be excluded from among synonyms. The carried out work testifies, that time has come to organize serious revision of all mites fam. Rhyncaphytoptidae. There can be no dobt that investigation of it will demand studying both: as summer and as winter individuals of the described representatives of family, and also wide application biometry.
Even our small work definitely has shown, that Tetrapodili's modern taxonomy and classifications
are peculiar three serious lacks:
1. Successful development eriophydology is impossible without inclusion in species' descriptions of deuogyne's characters.
2. It is urgently necessary by the new species descriptions, using not only typical series of individuals (mites from back side of their body and from lateral side), but it is important to have sufficient on the volume samples, for the describing with usage first of all a complex of «the basic characters».
3. Progress in systematic of group will depend on quality of illustrative materials (modern photos, good shaped figures). Publication of primitive mites' images, more reminding caricature, than illustrations to scientific works is completely inadmissible.