Ontogenetic changes in the morphology of Eharius chergui (Acari: Phytoseiidae)
Author
Ma, Min
Author
Fan, Qing-Hai
Author
Zhang, Zhi-Qiang
text
Zootaxa
2018
2018-12-28
4540
1
23
39
journal article
27721
10.11646/zootaxa.4540.1.5
2762929b-a0cc-43b1-af40-1497b402e4da
1175-5326
2616198
EAFD3112-50F1-4337-894E-8ECD4335B0EC
Comparison of
Eharius chergui
from
New Zealand
and
Algeria
We compared ontogenetic data (mainly chaetotaxy) of
E. chergui
from this research with those of this species described by
Athias-Henriot (1960)
(
Table 4
). The larvae from these two locations are different. They all have
j1
,
j3
,
j4
,
j5
,
j6
,
z2
,
z4
,
z5
,
Z4
, and
s4
on dorsal shield, but the larvae from
New Zealand
have setae
J5
, lacking
S2
and
Z1
and those of
Algeria
have
S2
and
Z1
but lacking
J5
. In addition, the length of setae
j3
of larvae in Athias-
Henriot (1960)
was different from those described by us; Setae
j3
are as long as
j1
and the pronotal shield has a pair of big solenostomes
gd
2
in specimens from
Algeria
, whereas setae
j3
are half as long as
j1
, and the pronotal shield has a pair of lyrifissures
idla
in specimens from
New Zealand
. Furthermore, Athias-Henriot just collected a single larva. From the comparison of larvae, there is a probability that the larva described by Athias-Henriot may be from another species on the same host; we noted this problem in
Amblydromalus limonicus
(
Ma
et al
. 2018a
)
.
The protonymphs of these two locations are slightly distinguishable. This study found that in the protonymph, setae
S2
are knobbed in
New Zealand
specimens, but this was not described by
Athias-Henriot (1960)
. The length of dorsal setae was not different between our specimens and that of Athias-Henriot (
Table 2
).
TABLE 4.
Comparison of some characters of each stage of
Eharius chergui
(Athias-Henriot, 1960)
.
New Zealand |
Algeria* |
Setae |
L |
PN |
DNf |
DNm |
F |
M |
L |
PN |
DNf |
DNm |
F |
j1
|
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
j3
|
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
j4
|
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
j5
|
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
j6
|
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
J2
|
— |
+ |
+ |
+ |
+ |
+ |
— |
+
|
+
|
+
|
+
|
J5
|
+
|
+ |
+ |
+ |
+ |
+ |
—
|
+ |
+ |
+ |
+ |
r3
|
— |
+ |
+ |
+ |
+ |
+ |
— |
+ |
+ |
+ |
+ |
R1
|
— |
+ |
+ |
+ |
+ |
+ |
— |
+
|
+
|
+
|
+
|
s4
|
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
S2
|
—
|
+ |
+ |
+ |
+ |
+ |
+
|
+ |
+ |
+ |
+ |
S5
|
— |
+ |
+ |
+ |
+ |
+ |
— |
+ |
+ |
+ |
+ |
z2
|
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
z4
|
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
z5
|
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
Z1
|
—
|
+ |
+ |
+ |
+ |
+
|
+ |
+ |
+ |
+ |
Z4
|
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
Z5
|
— |
+ |
+ |
+ |
+ |
+ |
— |
+ |
+ |
+ |
+ |
st1
|
+ |
+ |
+ |
+ |
+ |
+ |
▲ |
▲ |
+ |
+ |
+ |
st2
|
+ |
+ |
+ |
+ |
+ |
+ |
▲ |
▲ |
+ |
+ |
+ |
st3
|
+ |
+ |
+ |
+ |
+ |
+ |
▲ |
▲ |
+ |
+ |
+ |
st4
|
— |
— |
+ |
+ |
+ |
+ |
▲ |
▲ |
+ |
+ |
+ |
st5
|
— |
— |
+ |
+ |
+ |
+ |
▲ |
▲ |
+ |
+ |
+ |
JƑ1
|
+ |
+ |
+ |
+ |
+ |
+ |
▲ |
▲ |
▲ |
+ |
+ |
JƑ2
|
+ |
+ |
+ |
+ |
+ |
+ |
▲ |
▲ |
▲ |
+ |
+ |
JƑ5
|
+ |
+ |
+ |
+ |
+ |
+ |
▲ |
▲ |
▲ |
+ |
+ |
ZƑ1
|
— |
— |
+ |
— |
+ |
— |
▲ |
▲ |
▲ |
— |
+ |
ZƑ2
|
+ |
+ |
+ |
+ |
+ |
+ |
▲ |
▲ |
▲ |
+ |
+ |
ZƑ3
|
— |
— |
— |
— |
— |
— |
▲ |
▲ |
▲ |
— |
— |
Fix digit- no.
|
0 |
2 |
1–2 |
— |
2 |
— |
— |
— |
— |
— |
2 |
Movable digit-no.
|
0 |
0 |
0 |
— |
0 |
— |
— |
— |
— |
— |
0 |
L: Larva; PN: Protonymph; DNf: Deutonymph female; DNm: Deutonymph male; F: Adult female; M: Adult male; —: without the seta;
*
: All data from original description:
Athias-Henriot (1960)
; ▲: without measurement and description in the original description (
Athias-Henriot 1960
). The data of deutonymph male were surmised by the adult male from
Algeria
.