Acuphis Karg

Castilho, Raphael C., Silva, Edmilson S., De, Gilberto J. & Halliday, Bruce, 2016, Catalogue of the family Ologamasidae Ryke (Acari: Mesostigmata), Zootaxa 4197 (1), pp. 1-147 : 8

Acuphis Karg (3 described species)

Movable and fixed cheliceral digits with three and six teeth, respectively. Epistome with anterior region somewhat triangular, with median spine-like projection. Seta h 3 about in longitudinal line with h 1 and slightly posterior and mediad to h 2. Idiosoma suboval, 430–800 µm long and 290–570 µm wide at widest level. Podonotal and opisthonotal shields separated. Dorsal idiosomal setae aciculate, pilose or pectinate, not densely pilose. Podonotal region of dorsum with 21–22 pairs of setae, of which 21–22 pairs on podonotal shield and without setae on soft integument along lateral margins of podonotal shield. Opisthonotal region with 17–21 pairs of setae, of which 17–20 pairs on opisthonotal shield and 0–1 pair on soft integument along lateral margins of opisthonotal shield. Seta j 1 not on prominent protuberance, shorter than r 3 and as long as or shorter than Z 5. Opisthonotal and ventrianal shields fused. Two pairs of presternal platelets present. Sternal shield fused to endopodal shield near coxa IV; seta st 4 laterad to imaginary line between st 1– st 3. Opisthogaster without platelets between genital and ventrianal shields; with 6–7 pairs of setae on ventrianal shield; post-anal seta as long as or slightly longer than paraanal seta. Peritreme with straight or smoothly curved margins, extending anteriorly to coxa I. Peritrematal shield fused posteriorly to exopodal shield near coxa IV and to ventrianal shield, with connection behind stigma wider than peritreme. Exopodal shields near coxae II–III–III fused or divided at median level of coxa III. Without distinct metapodal platelets. All legs with pretarsi. Genua I, III and IV and tibia IV with 13, 9, 10 and 10 setae, respectively.