New records of eriophyoid mites from Iran (Acari: Trombidiformes: Eriophyoidea) and a description of a new Brevulacus Manson species
Author
Soika, Grażyna
Author
Gol, Ali
Author
Honarmand, Arash
Author
Wozińska, Anna
Author
Sadeghi, Hussein
text
Zootaxa
2017
4216
4
321
338
journal article
37338
10.5281/zenodo.242246
3ef4eb1e-f266-4a85-8ff6-8a13b8c33be6
1175-5326
242246
0CF49A12-A536-49CB-A51A-91B1024B0665
Aceria wallichianae
(
Keifer, 1975
)
(
Figs 3–4
)
Eriophyes wallichianae
Keifer, 1975
Type
data.
Ulmus wallichiana
Planch. (
Ulmaceae
)
,
Asia
(
Himalayas
of
India
)
Relation to the host.
Gall-making. Mites create beadlike pustules on the underside of leaves (
Figure 5
).
Geographic distribution:
India
(
Keifer 1975
) and in
Iran
(recorded here).
Distribution and host plants in
Iran
:
22 females
from Aliabad-e Katul (
36°54'N
-
54°53'E
),
Golestan Province
,
140 m
above sea level collected by A. Gol,
18 June 2014
from
Ulmus minor
Mill.
mounted on 22 separate microscope slides, which have been retained in the collections of the DVOPP, INHORT, Skierniewice and
7 females
mounted on 7 separate slides have been deposited in the DPPFA, FUM,
Iran
.
TABLE 2
. Comparison of morphological traits of Iranian and Himalayan populations of
Aceria wallichianae
Keifer, 1975
and
Aceria filiformis
(Nalepa)
.
Characteristics
Aceria wallichianae
Aceria filiformis
(Nalepa, 1861
Iran
Keifer (1975)
according to
Farkas
1966
) n=
10 females
n= unkn. n=unkn
Length of body 180–252 230–275 170
Width of body 32–40 — —
Thickness of body 30 33 —
Length of prodorsal shield 22–27 23 28
Width of prodorsal shield 19–21 26 —
Length of setae
sc
29–38 29 45
Sc
tubercle apart
13–15 13 7
Length of gnathosoma 18–19 20 20
Length of setae
ep
4–5 5 —
Length of setae
d
4 — —
Length of chelicerae 14–16 — —
Length of leg
I 23–26 27
30
Length of empodia
I 3–4
6 —
Length of solenidion I (
ω)
5–6 6 5
Length of tibia
I 5–6
5 6
Length of setae
l ′
5–6 7 —
Length of tarsus
I 5–7
6 6
Length of leg
II 22–24 25
28
Length of empodia
II 3 — 6
Length of solenidion II (
ω)
5–6 7 —
Length of tibia
II 4
4 4
Length of tarsus
II 5–6
6 5
Rays in empodia 3 3 3
Length of setae
1b
5–6 — —
1b
setae tubercle apart 8–10 — —
Length of setae
1a
18–20 — —
1a
setae tubercle apart 6 — —
......continued on the next page
Characteristics
Aceria wallichianae
Aceria filiformis
(
Nalepa, 1891
Remarks.
Both
Aceria wallichianae
(
Keifer, 1975
)
and A.
filiformis
(
Nalepa, 1891
)
belong to the
filiformis
complex (
Keifer 1975
). Eriophyoid mites representing this group have a characteristic 3-rayed empodium, with the inner fork of the terminal ray pair longer than the outer fork. Both
A. wallichianae
and
A
.
filiformis
induce small, ball-like pustules on the lower side of leaves,
A. wallichianae
on
Ulmus wallichiana
Planch.
and
A. filiformis
on
U. campestris
L. Morphological differences between these closely related species of the genus
Aceria
are subtle (
Table 2
). According to
Keifer (1975)
these two species can be distinguished only by small differences in the pattern on the prodorsal shield and the shape of their opisthosomal microtubercles. The admedian lines on the prodorsal shield of
A. wallichianae
are further apart on the rear half of the shield and the lateral shield granules are smaller than in
A. filiformis
, while the opisthosomal microtubercles are more elliptical than in
A. filiformis
. Additionally,
A. wallichianae
and
A
.
filiformis
can be differentiated by the pattern on the genital coverflap. In Keifer's description of
A. wallichianae
, broken lines are visible on the genital coverflap, while in Nalepa's and Farka's descriptions these lines are unbroken. Based on this comparison, the Iranian specimens were determined to be most similar to
A. wallichianae
(Keifer)
. Furthermore, morphometric studies were carried out on specimens collected in
Iran
and a comparison was made between those specimens and the description of
A. wallichianae
and both the original description of
A. filiformis
and a later description of
A. filiformis
by
Farkas (1966)
. The differences between the Iranian specimens and Keifer's description of
A. wallichianae
were: width of prodorsal shield (
19–21 in
Iranian specimens,
26 in
A. wallichianae
), length of genital coverflap (
11–13 in
Iranian specimens,
15 in
A. wallichianae
) width of genital coverflap (
14–16 in
Iranian specimens,
19 in
A. wallichianae
), length of setae
c2
(
13–17 in
Iranian specimens,
18 in
A. wallichianae
), and length of ventral setae
d
(
28–41 in
Iranian specimens,
50–55 in
A. wallichianae
) (
Table 2
). The differences in these results is probably explained either by inter-individual variability among specimens and by the difference in resolution provided by the different microscopes used.