The water mite family Aturidae Thor (Acari: Hydrachnidia) from Ghana, with the description of twelve new species
Author
Smit, Harry
text
Zootaxa
2016
4158
4
523
543
journal article
10.11646/zootaxa.4158.4.5
560e4a43-69cb-46b4-99f7-40d583fe455e
1175-5326
257473
C904ADAE-1B46-4E42-8E43-186DE2A078BF
Pseudaxonopsalbia (Pseudaxonopsalbia) ghanensis
n. sp.
(
Figs. 13A–E
)
Material
examined.
Holotype
female,
Amedzofe Falls
,
Ghana
, 6º
50.656 N
0º
26.868 E
, alt.
599 m
a.sl.,
20-ii- 2013
.
Paratypes
: five females, same data as holotype.
Diagnosis
. Dorsal furrow with three pairs of glandularia platelets; preocularia not fused with dorsal shield; vgl-2 covered by ventral shield; genital plates with four pairs of acetabula, not fused with postgenital sclerites.
FIGURE 13A–E.
Pseudaxonopsalbia ghanensis
n. sp.
, A–D holotype female, E paratype female. A = dorsum; B = venter; C = palp; D = I-leg; E = posterior venter. Scale bars = 50 µm.
Description
. Female: Idiosoma dorsally 389 (373–405) long and 308 (316–332) wide, ventrally 340 (344– 365) long; dorsum slightly indented at posterior margin. Dorsal shield 381 (367–401) long and 262 (259–284) wide, with A2 and three pairs of glandularia plus a pair of setae without glands, postocularia anteromedially of dgl- 1; excretory pore fused with dorsal shield. Dorsal furrow with three pairs of glandularia platelets and a pair of preocularia. Anterior coxae far distanced from frontal margin. Suture lines of coxae obliterated. Fourth leg sockets with small condyles. Cxgl-4 more or less halfway between fourth leg sockets and genital field. Vgl-2 covered by fourth coxae and probably not fused with coxal shield. In a young female vgl-2 are still not covered by coxal shield. Genital field with four pairs of acetabula, not fused with post-genital sclerites; gonopore 88 long. Length of P1–5: 22, 37, 27, 52, 28. Length of I-leg-4–6: 46, 48, 44; I-leg-1 with a stout ventral seta, I-leg-2 with a somewhat less stout seta. Length of IV-leg-4–6: 48, 56, 42; IV-leg-5 with two swimming setae.
Male: Unknown.
Etymology
. Named after the country where the new species was found.
Remarks
. The new species is most close to
Pseudaxonopsalbia acanthophora
(
Cook, 1966
)
in similarly shaped acetabular plates, but differs in a less slender idiosoma, more posteromedially-placed postocularia and vgl- 2 are completely covered by the coxal field (only partially covered in
acanthophora
). Moreover, no swimming setae have been reported for
P. acanthophora
.