Paraxonopsis separata, Smit, 2016

Smit, H., 2016, The water mite family Aturidae Thor, 1900 from Southeast Asia (Acari: Hydrachnidia) with the description of one new genus and 14 new species, Acarologia 56 (3), pp. 341-365 : 357-360

Paraxonopsis separata n. sp.

( Figure 12 )

Material examined. Holotype male, Small unnamed stream crossing Mt Brinchang Road, Cameron Highlands, Malaysia, 4°31.458N 101°23.353E, alt. 1860 m a.s.l., 19-ii-2009.

Diagnosis — Genital field with four pairs of acetabula, acetabula widely separated.

Description — Male: Idiosoma rugose, dorsally somewhat rectangular anteriorly, 373 long and 292 wide; idiosoma reticulated. Dorsal shield fused anteriorly with ventral shield, with three longitudinal ridges and A2 and four pairs of dorsoglandularia. First coxae extending beyond anterior idiosoma margin, most coxal suture lines obliterated. A ridge extending anteriorly from fourth legs sockets to lateral idiosoma margin. Between fourth leg sockets and genital field a pair of glandularia, lying closer to genital field than to fourth leg sockets. Genital field with four pairs of acetabula, the most lateral pair extending far laterally. Gonopore 30 long, lying on a bulge. Length of P1-5: 24, 38, 30, 56, 20.; ventral margin of P2 with an extension, ventral margin of P4 with a setal tubercle. Length of I-leg-4-6: 38, 40, 52 (till tip of segment). Length of IV-leg-4-6: 58, 72, 60. Legs without swimming setae, legs and palp striated. Female: Unknown.

Etymology — Named for the widely separated acetabula.

Remarks — None of the known four-acetabulate Paraxonopsis species has the acetabula separated as widely as in the new species.

Figures

FIGURE 12: Paraxonopsis separata n. sp., holotype male: A – dorsum; B – venter; C – palp. Scale bars = 50 µm.