Fedrizzia derricki Womersley

Fedrizzia derricki Womersley Fedrizzia derricki Womersley, 1959: 22. Type specimens. Holotype, F, AUSTRALIA: Queensland, Atherton, 28.iii. 1945, D. L. Collis, from passalid beetle (N 1952286 a–d). In SAMA. Paratypes, M, same data as holotype (N 1952287 a–d); 2 M, same data as holotype except from Megisthanus sp. (Acari: Mesostigmata: Megisthanidae) (N 1952288 -N 1952289). In SAMA. Diagnosis. Both sexes: idiosoma 928 long, with 4–6 large pores; ventral shield with mesh-like pattern; marginal and ventrianal shields with lineate reticulations; anterolateral corner of ventrianal shield fused with ventral shield; exopodal patterning between CxII–III spotted; pedofossae III absent; CxIV-marginal suture absent; femur III and IV without lamellae, seta pv 1 not significantly thickened; femur IV elongated; seta h 1 unmodified. Female: setae st 2 6–8, st 3 20–30, st 4 10–15 long; lyrifissure stp 2 level with stp x; sternogynial shield reticulate, but not honeycomb-like, flanked by several pores, not surrounded by a distinct smooth area. Male: sternoventral shield with suture behind genital opening demarking anterior smooth and posterior reticulated areas; genital opening not flanked by pores; seta h 3 positioned posterior of h 2. Remarks. The holotype is in poor condition. Two of the paratype males (N 1952288 -N 1952289) are in good condition. This species is very similar to F. bornemisszai, but I have tentatively retained this species on the basis of its small ventrianal shield (260 wide) and longer sternal setae.Published as part of Seeman, Owen D., 2007, Revision of the Fedrizziidae (Acari: Mesostigmata: Fedrizzioidea), pp. 1-55 in Zootaxa 1480 on page 24, DOI: 10.5281/zenodo.17684