The Phlaeothrips - lineage of fungus feeding thrips (Thysanoptera: Phlaeothripidae) in Iran with a new species of Hindsiothrips
Author
Minaei, Kambiz
text
Zootaxa
2013
3599
3
279
290
journal article
10.11646/zootaxa.3599.3.5
16b62458-0eaf-4510-aba9-219a0ea40a3d
1175-5326
221937
40567428-3478-4D86-8014-84425BAED692
Idiothrips bellus
Faure
Idiothrips ficus
Bhatti
syn. n.
Bhatti (1967)
stated that
I
.
ficus
was distinguished from
I. bellus
"in having more slender antennal segs. 3 and 4" (
Table 2
). However, the specimens listed below from
Iran
show a considerable range in the length/width ratios of antennal segments III and IV. For instance, in population 2 (
Table 4
) this ratio ranges 1.90-2.68 for segment III and 1.91-2.63 for segment IV. Moreover there is no significant difference in both characters among 5 populations (
Table 4
).
Problems with measurements in thrips study including difficulty of measuring parts of thrips body, inaccuracy due to physical characteristics of light, human error and inaccurate calibration have been discussed elsewhere (
Minaei & Mound 2010
). Morover small samples are unlikely to show the full range of variation of any species.
The length of antennal segment III of specimens examined by Ananthakrishnan (1964) is longer than the
holotype
of
I. bellus
, even a little longer than specimens examined by
Bhatti (1967)
, but Ananthakrishnan did not put a new name on his material, in contrast to Bhatti. Judging from recent collections in
Fars
Province and the data by
Kheyrandish Koshkoei (2000)
, the distribution of this species seems restricted to southern
Iran
where it lives on various trees probably feeding on fungi.
Diagnosis.
Female aptera, brown, head darker. Antennal segment III pale, V pale, yellow or yellow-brownish, distal part of tibiae pale, pelta brown with whitish spot in middle. Body sculptured, short and broad; head about as long as broad; postocular setae not developed; cheeks with warts (
Fig. 10
). Antenna 7-segmented (
Fig. 4
), segment III with no sensorium but with a few setae that are sometimes stout, IV with 1 sensorium on ventral surface (
Fig. 5
), VII non-pedicellate, broad at base, VI longer than VII (
Fig. 4
). Head as long as broad (
Fig. 10
), mouthcone finely pointed, extended to prosternum. Maxillary stylets close to each other and retracted to eyes, maxillary bridge absent. Fore tarsal tooth usually absent, rarely a minute tooth is present (
Fig. 17
). Pronotal setae reduced, with apices expanded, one pair of posteroangular setae larger and funnel-shaped at apex; notopleural sutures incomplete; basantral plates absent. Metanotum reduced; metathoracic sternopleural sutures present. Pelta bell shaped (Fig. 23); tube short, about as long as head. Tergites without sigmoid setae; III–VIII with one pair of fanshaped setae laterally (Fig. 27); S1 and S2 setae on tergite IX almost the same length and truncate at apex (Fig. 27).
Measurements
(one female in microns). Body length 1481. Head, length 173; maximum width 191. Pronotum, length 125; median width 270; epim, 23. Pelta length 41, maximum width 257, tergite III, major marginal setae 35. Tergite IX setae
S1 34
,
S2 34
. Tube length 150, basal width 58. Antennal segments III–VII length 49, 51, 50, 62, 43.
Male aptera, smaller and paler than female, about 1/2 distal part of tibiae pale; lateral parts and second half of metathorax pale, pelta almost pale; fore tarsal tooth developed (
Fig. 18
); maxillary stylets not retracted to eyes and closer to each other (
Fig. 12
). Mouth cone rounded, not extended to prosternum.
Measurements
(one male in microns). Body length 1096. Head, length 152; maximum width 153. Pronotum, length 117; median width 211; epim, 17.Tergite III, major marginal setae 26. Tergite IX setae
S1 29
,
S2 26
. Tube length 81, basal width 42. Antennal segments III–VII length 45, 50, 52, 60, 46.
Material studied.
Iran
,
Fars
Province, Badjgah,
16 females
,
2 males
, from
Morus albus
,
19.viii. 2008
(Moslem Behmanesh); same locality and plant,
1 female
,
1 male
,
24. ix. 2011
(KM565); same locality and plant,
6 females
,
5 males
,
28. ix. 2011
(KM572); same locality and plant,
8. v. 2012
(KM782); same locality and plant,
11. v. 2012
(KM794); same locality and plant,
18 females
,
21. v. 2012
(KM810); same locality and plant,
2 females
,
25. v. 2012
(KM819) (unmacerated); same locality,
2 females
,
1 male
from
Fraxinus
sp.,
3. x. 2011
(KM, without code); Shiraz,
1 female
from
Tamarix
sp.,
21. iv. 2012
(KM753); same locality and plant,
12 females
,
26. iv. 2012
(KM757); Dasht-e Mouk (Meymand),
8 females
from
Pistacia atlantica
,
10. iv. 2012
(KM786); Darengoon,
9 females
from Pomegranate,
18. v. 2012
(KM800); Shiraz,
1 female
from
Prunus armeniaca
,
24. v. 2012
(KM815); Shiraz,
3 females
from
Ulmus campestris
,
13.vii.2012
(KM872).
TABLE 1.
The genera of
Phlaeothripidae
recorded from Iran.
Idolothripinae
Phlaeothripinae
Haplothripini
Liothrips
lineage
Phlaeothrips
lineage
Allothrips
Hood
Bagnalliella
Karny
Ataliothrips
Bhatti
Aleurodothrips
Franklin
Compsothrips
Reuter
Dolicholepta
Priesner
Cephalothrips
Uzel
Hoplandrothrips
Hood
Megathrips
Targioni-Tozzetti
Haplothrips
Amyot & Serville
Liophloeothrips
Priesner
Hoplothrips
Amyot & Serville
Pseudocryptothrips
Priesner
Neoheegeria
Schmutz
Liothrips
Uzel
Idiothrips
Faure
Plicothrips
Bhatti
Phlaeothrips
Haliday
Stictothrips
Hood
TABLE 2.
Original measurements of L/W III and L/W IV of
Idiothrips
species.
| Species |
L/W III |
L./W IV |
Reference |
|
bellus
|
1.78 |
1.66 |
Faure (1933) |
|
bellus
|
2.31 |
1.86 |
Ananthakrishnan (1964) |
|
ficus
|
2.3 |
2.3 |
Bhatti (1967) |
|
maghrebinus
|
1.92 |
1.68 |
zur Strassen (1968) |
TABLE 3.
Five selected populations of
Idiothrips bellus
collected in Fars Province.
Population Collecting data 1 Badjgah,
19.viii.2008
on
Morus albus
(Moslem Behmanesh)
2 Shiraz,
26.iv.2012
on
Tamarix
sp. (KM 757)
3 Badjgah,
8.v.2012
on
Morus albus
(KM 782)
4 Mymand,
10.v.2012
on
Pistachio mutica
(KM 786) 5 Darengoon,
18.v.2012
on
Punica granatum
(KM 800) a: means within same column and with a common superscript not differ at p <0.05 N: number of specimens