Notes On Neoseiulus Paspalivorus (De Leon) And Proprioseiopsis Messor (Wainstein) (Acari: Phytoseiidae) Collected In Iran
Author
Ostovan, H.
Author
Faraji, F.
Author
Kamyab, F.
Author
Khadempour, F.
text
Acarologia
2012
2012-03-30
52
1
51
58
http://dx.doi.org/10.1051/acarologia/20122032
journal article
10.1051/acarologia/20122032
2107-7207
5393165
Typhlodromus paspalivorus
De Leon, 1957: 143
.
Female — One specimen measured.
Idiosomal setal pattern — 10A:9B/JV-3:ZV.
Dorsal idiosoma (
Figure 1A
) — Dorsal shield 348 long and 155 wide at j
6
level, strongly reticulated; with a slight waist at level of seta
R
1
and with a shoulder at level of seta r
3
; dorsal setae smooth, except for Z
5
, serrate; lengths: j
1
11, j
3
11, j
4
9, j
5
9, j
6
9, J
2
(missing), J
5
9, z
2
10, z
4
10, z
5
8, Z
1
10, Z
4
15, Z
5
52,
s
4
11
,
S
2
11
,
S
4
13
,
S
5
16
; setae r
3
12 and
R
1
10 on lateral integument
.
Peritreme — Extending to the level of setae j
1
(
Figure 1A
).
Ventral idiosoma (
Figure 1B
) — Sternal shield moderately reticulated 91 long and 63 wide at level of setae ST
2
; sternal setae short, ST
1-3
9 – 10, ST
4
12, ST
4
on metasternal shields; genital shield lightly reticulated, width 65 at widest point, ST
5
13; 2 pairs of metapodal shields, primary narrow and 40 long and accessory 8 long; ventrianal shield subquadrate, with light reticulation, length 108, width at level of setae ZV
2
85 and width at level of paranal setae 73; with 3 pairs of short preanal setae JV
1
9, JV
2
9, ZV
2
9; 4 pairs of setae surrounding ventrianal shield on integument, JV
4
10, JV
5
21, ZV
1
9, ZV
3
8; ventrianal shield with a pair of small round pores posteromesad to JV
2
, distance between these pores 35 almost equal to distance between JV
2
-JV
2
insertions. Spermatheca — Calyx cup-shaped 6 long and 7 wide; atrium c-shaped. (
Figure 1C
).
Chelicera — Fixed digit 20 long with 7 teeth and a pilus dentilis; movable digit 24 long with 1 tooth (
Figure 1D
).
Legs — Leg IV (
Figure 1E
) with only one short macroseta on basitarsus, pointed apically, StIV 16 long; other legs without macrosetae; genua and tibiae I-II-III-IV with 10-8-7-7 and 10-7-7-6 or 7 setae, respectively (left and right tibiae with 6 and 7 setae, respectively).
Specimen examined — One female,
June 2010
, soil under a palm tree, Bandarabbas,
Iran
, collector:
Fariba Kamyab.
Remarks — Members of the species group
paspalivorus
are mainly characterized by having the dorsal shield strongly reticulate and narrow, usually with a shoulder at the level of r
3
and by having ventral setae very short (
Chant and McMurtry 2003
). One more character that should be considered for this species group is the reticulation on genital shield.
Chant and McMurtry (2003)
listed 14 nominal species in the
paspalivorus
species group suggesting
N. baraki
(
Athias-Henriot 1966
)
and
N. benjamini
(
Schicha 1981
)
as possible synonyms of
N. paspalivorus
. Zannou
et al.
(2006) treated
N. baraki
and
N. benjamini
as valid species and separated
N. benjamini
from the other closely related species by having seta ST
4
off metasternal shield. This character was possibly taken from the original description of
Schicha (1981)
without examining the type material. In re-describing
N. benjamini
,
Ueckermann and Loots (1988)
by examining the
holotype
female and
Lofego
et al.
(2009)
by re-describing Brazilian specimens, depicted seta ST
4
on metasternal shield.
Beard (2001)
briefly re-described
N. benjamini
collected from pineapple in
Queensland
without mentioning the metasternal shield. One of her two deposited slides in
Queensland
Museum clearly shows that ST
4
is inserted on the metasternal shield (Pers. Comm. of Owen Seeman with F. Faraji). The position of ST4 could not be confirmed based on the
holotype
specimen because of the poor condition of the specimen (Pers. Comm. of Danuta Knihinicki with F. Faraji). Therefore, we are questioning the validity of this character to distinguish
N. benjamini
from the other species. In
N. baraki
the number of teeth on the movable digit of chelicerae is not consistent. Zannou
et al.
(2006) mentioned one tooth while
Athias-Henriot (1966)
mentioned two.
Lofego
et al.
(2009)
showed a similar variability in
N. benjamini
for the number of cheliceral teeth on both digits. Examination of more specimens is necessary to clear this up in
N. baraki
. For
N. paspalivorus
,
De Leon (1957)
pointed out 4 to 6 teeth on the fixed digit of chelicerae. The Iranian specimen shows 7 teeth, which was also men-
Ostovan H.
et al.
FIGURE 2:
Proprioseiopsis messor
(Wainstein) (Female)
: A – Idiosoma, dorsal view; B – Idiosoma, ventral view; C – Spermathecae; D – Chelicera; E – Leg IV.
tioned by
Palevsky
et al.
(2009)
. Recently,
Sourassou
et al.
(2011)
examined three populations (
Brazil
,
Benin
and
Ghana
) of the species morphologically identified as
N. paspalivorus
. Despite morphological similarity, inter-population crosses showed reproductive isolation between the three populations indicating that the tested specimens are distinct biological entities. The single collected specimen from
Iran
resembles the original description of
N. paspalivorus
in all respects. The Iranian specimen does not show any significant morphometric differences from those of the three populations provided by
Sourassou
et al.
(2011)
.