Liochthonius perpusillus (Berlese, 1910)

Brachychthonius perpusillus Berlese, 1910, p. 220, pl. 19 fig. 41; Lombardini, 1936, p. 38; Forsslund, 1942, p. 4, fig. 4; 1957, p. 590, fig. 12.

Forsslund (1957) recently established the identity of the present species; the holotype conforms to the Swedish specimens described by him as Brachychthonius perpusillus in 1942. I do not know if Hypochthonius brevis Michael is identical with B. perpusillus; it is at least a closely related species that belongs to the genus Liochthonius (cf. Evans, 1952, p. 227).

B. perpusillus occurs in Europe and North America; Berlese collected a heterogenous collection of specimens in Tuscany and North Italy; Forsslund (1957) designated slide no. 72/41 as holotype.