New taxa in the Eriophyidae (Acari, Prostigmata) from forest trees in southern Brazil Author Flechtmann, Carlos H. W. Author De, Dalva L. text Zootaxa 2010 2337 18 30 journal article 10.5281/zenodo.193221 b0a2eb6d-be07-47b1-a8c7-652397391ca5 1175-5326 193221 Juxtacolopodacus n. gen. Body elongate, robust anteriorly with a broad dorsopropodosomal shield; shield with a pronounced narrow frontal lobe. Prodorsal shield setiferous tubercles on far lateral shield margin; scapular seta probably pointing divergently backwards. Opisthosoma with rings about even in numbers dorsoventrally; with three dorsal ridges: middorsal ridge strong, fades into a trough; lateral ridges well defined, extend over entire opisthosomal length. Coxae I separated medially; all three coxal setae present. Femoral seta on leg I absent; all other leg setae present. Tarsus on leg I with solenidion laterad to empodium. Type species . Juxtacolopodacus phalakros n. sp. Etymology . Juxta , Latin, near, next to + Colopodacus , that is, a genus near Colopodacus Keifer, 1960 . Gender masculine. Assignment and diagnosis . Eriophyidae , Nothopodinae , Colopodacini . In Amrine et al . (2003) the new genus will key out to a position intermediate, but separate both from Colopodacus Keifer, 1960 and Apontella Boczek & Nuzzaci, 1988 . It is similar to Apontella in the lack of femoral seta on leg I and in having reduced scapular setae on the far lateral shield margin, but differs from Apontella in having a middorsal opisthosomal ridge ( Apontella has a middorsal trough), by the pronounced narrow frontal lobe (broad and rounded in Apontella ) and in the lateral position of the solenidion on tarsus of leg I (solenidion dorsal in Apontella ). It shares with Colopodacus the middorsal opisthosomal ridge, a narrow frontal lobe and separate coxae I, but differs in the lateral position of the solenidion on tarsus I (dorsal in Colopodacus ), tibio-tarsus short and with dorsal and lateral setae in usual position (tibio-tarsus elongate and setae near the genu in Colopodacus ), and in the far lateral position of the scapular setae (medially placed in Colopodacus ).