Acrotritia Jacot, 1923, Jacot, 1923

Liu, Dong & Chen, Jun, 2015, Acrotritia species (Acari: Oribatida: Euphthiracaridae) from China with description of a new species, Zootaxa 3937 (1), pp. 127-146: 129

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Acrotritia Jacot, 1923


Acrotritia Jacot, 1923  

Diagnosis. Surface of body mostly finely punctuate or porose. Prodorsum without median crista, but with 1 or 2 pairs of lateral carinae; bothridial scales situated above the bothridia; posterior median apodeme present; setae in median (paraxial) position; exobothridial setae minute and fine; comparative lengths: in –in> le –le> ro –ro, in> le> ro> ex, in –le> le –ro. Notogaster with 14 pairs of setae, c 1 <c 1 – d 1, setae c 1 and c 2 remote from anterior border more than setae c 3, setae ps 1 situated anterior to ps 2–3 setae; openings of lateral opisthonotal glands present; 5 pairs of lyrifissures ia, im, ip, ih, ips and 2 pairs of vestigial setae f; terminal sinus at posterior end. Ventral region: setae h of mentum longer than distance between them; palps 3 -segmented, with normal formula: 2 - 2-8 (1); anogenital cleft absent; 1 interlocking triangle present; 3 pairs of anal setae, an 1 and an 2 rigid, smooth, an 3 always minute; 3 pairs of rigid adanal setae similar to notogastral setae, longer than anal setae an 1 and an 2; lyrifissures iad located between ad 3 and an 3 setae. Legs: setae d of femora I always in the same position, slightly distanced from distal end of article; femora III with 2 setae; femora IV with 1 seta; trochanters I and II bearing 1 seta, III and IV with 2 setae; genua IV without solenidia; setae d on tibiae IV relatively long and not coupled with solenidia; solenidia of tarsi II without coupled setae; tarsi mono-, bi- or heterotridactylous.