The water mite family Aturidae Thor, 1900 from Southeast Asia (Acari: Hydrachnidia) with the description of one new genus and 14 new species
Author
Smit, H.
text
Acarologia
2016
2016-07-22
56
3
341
365
http://dx.doi.org/10.1051/acarologia/20162248
journal article
10.1051/acarologia/20162248
2107-7207
5393843
Javalbia discrepans
n. sp.
(
Figure 6
)
Material
examined —
Holotype
female,
River
at km. 13,
Doi Inthanon NP
,
Thailand
,
18°31.532N
98°39.091E
, alt.
465 m
a.s.l.
,
25-xi-2007
.
Paratypes
:
four females
,
Stream
W of
Bankrang Camp
,
Kaeng Krachan
NP,
Thailand
,
12°48.106N
99°26.786E
,
20- xi-2007
.
Diagnosis — Dorsal shield with a posterior extension; three platelets in dorsal furrow fused to one elongated platelet, A2 fused with dorsal shield.
Description — Female: Idiosoma pale yellow, dorsally 405 (381 – 405) long and 300 (284 – 292) wide, ventrally 344 (247 – 251) long. Dorsal shield separated with a posterior extension, separated from ventral shield, and appears therefore in dorsal view as incomplete; dorsal shield 251 (247 – 251) wide. A2 fused with dorsal shield. Three pairs of glandularia lying in dorsal furrow on an elongated platelet. Postocularia lying posteromedially of dgl- 1, the latter lying close to margin of dorsal shield. Suture lines of coxae obliterated, only suture lines of Cx-III and Cx-IV present to some extent, other suture lines nearly absent. Cxgl-4 between fourth leg sockets and genital field, lying somewhat closer to genital field. Genital field 126 wide, with thee pairs of acetabula lying in a line, genital plates connected by a small strip of sclerotization. Vgl-4 lying on a small platelet, not fused to coxae. Excretory pore not lying on a small platelet, posterior to the genital field, touching postgenital sclerite but not fused. Length of P1-P5: -, 30, 22, 46, 24. Length of I-leg-4-6: 40, 46, 42 (till tip of segment. Length of IV-leg-4-6: 42, 48, 42 (till tip of segment). Swimming setae absent. Male: Unknown.
Etymology — Named for the very different dorsal shield compared to other
Javalbia
species.
FIGURE 6:
Javalbia discrepans
n. sp
.
, holotype female: A – dorsum; B – venter; C – palp. Scale bars = 50 µm.
Remarks — The dorsal shield with a posterior extension is not found in any other
Javalbia
species.
Moreover, the fused glandularia platelets in the dorsal furrow are also unique.