Steganacarus vitrinum (Berlese, 1913) Hoploderma vitrinum 1) Berlese, 1913, p. 103, pl. 8 figs. 100, 100a, 100b 2). The present species was not mentioned by Lombardini; I do not know if the type-material is indeed no more present because the species was omitted from my private catalogue when I visited Florence. The figure shows a Phthiracarid mite with convex anal covers, which points to Steganacarus; the structure of the tegument (although vague), the pale colour, and the shape of the notogastral hairs point to the striculus-group. 1) I do not know if vitrinum (from vitrum) is an adjective. 2) In the explanation of pl. 8 erroneous reference is made to figs. 99a, 99b.

Published as part of van der Hammen, L., 1959, Berlese's Primitive Oribatid Mites, pp. 1-93 in Zoologische Verhandelingen 40 on page 44