Neogamasellevans Loots & Ryke

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: 17

publication ID 10.5281/zenodo.168445

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Neogamasellevans Loots & Ryke


Neogamasellevans Loots & Ryke  (14 described species)

Movable and fixed cheliceral digits with three and 5–6 teeth, respectively. Epistome with an anteromedian extension club-shaped, flanked by one pair of large anterolateral extensions, as long as or shorter than anteromedian extension. Seta h 3 about in longitudinal line with h 1 and slightly anterior and mediad to h 2. Idiosoma elongate or suboval, 260–440 µm long and 110–280 µm wide at widest level. Podonotal and opisthonotal shields fused, forming holonotal shield. Dorsal idiosomal setae aciculate. Podonotal region of dorsum with 19–22 pairs of setae, of which 19–22 pairs on podonotal shield and without setae on soft integument along lateral margins of podonotal shield. Opisthonotal region with 14–21 pairs of setae, of which 14–21 pairs on opisthonotal shield and without setae on soft integument along lateral margins of opisthonotal shield. Seta j 1 not on prominent protuberance, shorter than r 3 and Z 5. Holonotal and ventrianal shields separated. With 1–2 pairs of presternal platelets. Sternal shield not fused to endopodal shield near coxa IV; setae st 1– st 4 in longitudinal line. Opisthogaster with four platelets between genital and ventrianal shields; with seven pairs of setae on ventrianal shield and without setae on soft integument around ventrianal shield; post-anal seta as long as or shorter than para-anal seta. Peritreme with straight or smoothly curved margins, extending anteriorly to level between middle region of coxa III and middle region of coxa II. Peritrematal shield not fused posteriorly to exopodal shield near coxa IV. Exopodal shields near coxae II –III –III 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.