280 Acarology 



f. Rhy nchey lais Lundblsid, 1938 



Type. Rhyncheylais connexa Lundblad, 1938 



g. Syneylais Lundblad, 1936 



Type. Eylais infundibulifer Koenike, 1897 



Piersigiinae Oudemans, 1902 



Genus: 



Piersigia Protz, 1896 



Type. Piersigia limophila Protz, 1896 



Discussion: Lundblad 1941 lists this as a family. 



Protziidae Viets, 1926 



Figures 199. 200 



Diagnosis: These mites are red in color, have a weak skin, are papil- 

 late or have striae, and usually lack true dorsal plates. Lateral eyes lie 

 in capsules while a median eye may be present or lacking. The palp- 

 tarsus located on the distal dorsal end of the tibia usually has a spine- 



Figure 199 Calonyx javanensis Viets. 

 Tarsal claw (left), palpus (right). 

 (After Lundblad 1936) 



Figure 200 Calonyx javanensis 

 Viets. Venter of male. (After 

 Lundblad 1936) 



like elongation. Arranged in four groups, the coxal plates are about 

 equal in size, the posterior group as a rule being far toward the rear. 

 The legs lack swimming hairs while the tarsal claws are sickle-like, 

 simple, or many-toothed. Between the anterior and posterior groups 

 of coxal plates, far from the posterior margin of the body lies the gen- 

 ital organ. The usually numerous, more or less easily seen, often long- 

 stalked genital suckers are in the skin, are variable in position, and 



