Oribatei 395 



2. Hysterosoma with transverse suture; suture between propodosoma 

 and hysterosoma; two or three pairs of genital suckers Palaeacarinae 



Hysterosoma without transverse sutures; no true segmentation be- 

 tween propodosoma and hysterosoma; with three pairs of genital 

 suckers and pecuhar genital armature of spinelike processes 



Acaronychinae 



Palaeacarinae Grandjean, 1932 



Genera: 



L Palaeacanis TTSiga.rdh, 1932 



Type. Palaeacanis hystricinus Tragardh, 1932 



2. Aphelacarus Grandjean, 1932 



Type. Parhy pocJithoninus acarinus Berlese, 1910 



3. A rcheonothrus Tr'ixgkrdh, 1906 



Type. Archeonothnis natalensis Tragardh, 1906 



4. Beklemishevia Zakhvatkin, 1945 



Type. Beklemishevia galeodiila Zakhvatkin, 1945 



5. Grandjeanacarus Z2iV\\\?L\k\n, 1945 



Type. Palaeacanis araiieola Grandjean, 1932 



6. Trdgdrdhacarus Zakhvatkin, 1945 



Type. Tragdrdhacarus lapshovi Zakhvatkin, 1945 



Acaronychinae Grandjean, 1932 



Genus: 



Acaronychus Grandjean, 1932 



Type. Acaronychus trdgdrdhi Grandjean, 1932 



Parhypochthoniinae Grandjean, 1932 

 Genera: 



1. Parhy pochthonius Berlese, 1904 



Type. Parhy pochthonius aphidinus Berlese, 1904 



2. Gehy pochthonius Jsicot, 1936 



Type. Gehy pochthonius rhadamantus Jacot, 1936 



Discussion: These mites are little known and have been seen by only 

 a few acarologists. They live in forest soil and debris and will probably 

 be found to be more common than suspected when more thorough 

 collections are made. 



References: 



Grandjean, F. 1932. Au sujet des Palaeacariformes Tragardh. Bull. Paris 

 Mus. d'Hist. Nat. Ser. 2, 4(4) .41 1-426. 



