Platynothrus robustior,

van der Hammen, L., 1959, Berlese's Primitive Oribatid Mites, Zoologische Verhandelingen 40, pp. 1-93: 72

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Platynothrus robustior


Platynothrus robustior  (Berlese, 1916)

Heminothrus robustior Berlese  , 1916a, p. 175.

Berlese described the present species as a Heminothrus  and compared it with H. palliatus  (i.e. the species that he designated in 1913 as type of the genus Platynothrus  !); robustior  resembles indeed some representatives of Platynothrus  , although the legs are tridactyle. I remark that Hammer (1958) described also two tridactyle species from South America. For the present I classify therefore the species with the genus Platynothrus  .

P. robustior  was collected in La Plata (The Argentine). The measurements of the type-specimens (slides nos. 160/18-20 in the Berlese Collection) are: length 0.955-0.985 mm, breadth 0.525 mm.