New zerconid mites (Acari: Mesostigmata: Zerconidae) from Canada, with a review of the genus Mixozercon Halašková, 1963 Author Díaz-Aguilar, Irma Author Ujvári, Zsolt text Zootaxa 2010 2555 1 29 journal article 10.5281/zenodo.196913 18a5c6e5-8297-458d-9e07-ba5e9de6e6b2 1175-5326 196913 Mixozercon heterosetosus Balan, 1995 Mixozercon heterosetosus Balan, 1995 : 76 ; Mašán & Fenďa, 2004 : 56 . Diagnosis. Central and submarginal setae of podonotum smooth, except j1. Setae J1-J4 and Z1-Z2 short, smooth, other J-, Z- and S-setae elongate, brush-like, plumose. R- setae uniform in length, R1 pilose, others smooth and thorn-like. Setae J5 situated in front of dorsal cavities. None of the setae on the dorsal shield reaching the bases of the following seta. Setae S1 situated posterolaterally to Z1. Pores Po2 situated on a line connecting Z2 and S2. Podonotum and opisthonotum without sculpturing pattern. Dorsal cavities wellsclerotised, saddle-like, with undulate anterior margin. Distribution. Ukraine .