Five new species of water mite genus Atractides Koch, 1837 from Bhutan with new records (Acari: Hydrachnidia: Hygrobatidae)
Author
PešićK, Vladimir
University of Montenegro, Cetinjski put bb, 81000 Podgorica, Montenegro.
Author
SmitK, Harry
Naturalis Biodiversity Center, P. O. Box 9517, 2300 RA Leiden, the Netherlands.
Author
GurungK, Mer Man
Department of Forest Science, College of Natural Resources, Royal University of Bhutan, Lobesa, & University of Montenegro, Cetinjski put bb, 81000 Podgorica, Montenegro.
text
Acarologia
2023
2023-01-30
63
1
148
168
journal article
2107-7207
Atractides
(
Atractides
) cf.
panesari
Pešić & Ranga Reddy, 2009
Figure 3
Material examined
—
Bhutan
,
MG
9 Kartigang Chhu,
27.27896°N
,
90.63088°E
,
1456 m
asl,
1 Nov. 2021
,
1♀
, dissected and slide mounted (
RMNH
).
Morphology
—
Female
– Integument striated, muscle insertions unsclerotized. Posterior margin of Cx-I+II broad, apodemes of Cx-II forming an acute angle with the median line. Excretory pore smooth; Vgl-1 not fused to Vgl-2. Genital field with acetabula in a curved line (
Figure 3B
). P-2 ventral margin straight, ventral margin P-3 slightly concave, P-4 sword seta between ventral setae (
Figure 3C
). I-L-5 with S-1/-2 strongly heteromorphic and separated, S-1 long, slightly bent inwards, distally truncate, S-2 shortened, enlarged, with a blunt tip; I-L-6 long and slender, distally slightly narrowed (
Figure 3D
).
Measurements
— Idiosoma L 540; maximum diameter Dgl-4, 23. Coxal shield L 281; Cx-III W 334; Cx-I+II mL 116, Cx-I+II lL 197. Genital field L/W 133/123, genital plates L 81, pregenital sclerite 81, gonopore L 113, L Ac-1-3: 32-34, 31, 28. Egg maximum diameter (n =
2) 100-103.
Palp – dL/H, dL/H ratio: P-1, -/-, -; P-2, 61/42, 1.46; P-3, 72/36, 2.0; P-4, 84/27, 3.06; P-5, 34/11, 3.16; L ratio P-2/P-4, 0.73.
Legs – I-L-5 dL 167, vL 92, dL/vL ratio 1.82, maximum H 63, dL/maximum H 2.64, S-1 L 124, L/W ratio 11.64, S-2 L 82, L/W ratio 5.26, distance S-1-2, 37, dL ratio S-1/2 1.50; I-L-6
dL 159, central H 16, dL/central H ratio 10.2; L I-L-5/6 ratio 1.05.
Remarks
— The examined female from
Bhutan
matches the description of
Atractides panesari
Pešić & Ranga Reddy, 2009
, a species originally described on the basis of a single female collected from hyporheic waters of a stream in
Uttarakhand State
of
India
(
Pešić and Ranga Reddy 2009
). The specimen from
India
(in parentheses data taken from
Pešić and Ranga Reddy 2009
) differs in comparatively longer S-1 (138 µm) and a larger S-1-2 distance (46 µm).
Distribution
—
India
(
Uttarakhand
),
Bhutan
.