The Indian species of Liophloeothrips Priesner (Thysanoptera, Phlaeothripidae) with one new species
Author
Tyagi, Kaomud
Author
Kumar, Vikas
text
Zootaxa
2011
2803
21
31
journal article
10.5281/zenodo.206543
51084698-f446-43b3-8725-b1e3590d48d1
1175-5326
206543
Liophloeothrips pavettae
Ananthakrishnan & Jagadish
(
Figs. 13
,
20
,
27
)
Liophlaeothrips pavettae
Ananthakrishnan & Jagadish 1969
: 42
.
Liophlaeothrips tenebrosus
Ananthakrishnan & Jagadish 1969
: 44
.
Syn. n.
This species was described from
14 females
and
10 males
collected from galls of
Pavetta
sp. (
Rubiaceae
), Tirupathi,
15.vii.68
, and
L. tenebrosus
was described in the same paper from
28 females
and
16 males
collected from galls of
Pavetta
sp., Tirupathi,
16.vii.1968
.
L
.
pavettae
and
L
.
tenebrosus
were separated by
Ananthakrishnan & Jagadish 1969
on the basis of the length of the pronotal anteroangular and anteromarginal setae, and the colour of the body setae and wings. In the original key to species, the anteroangulars and anteromarginals were stated to be subequal in
L. pavettae
, whereas the anteroangulars were longer than the anteromarginals in
L. tenebrosus
. However, the anteroangulars were found to be longer than the anteromarginals in the
holotypes
of both species. The colour of the body setae was described as hyaline in
L
.
pavettae
but grey in
L
.
tenebrosus
, whereas in the
holotypes
of both species these setae were found to be grey. The colour of the wings was described as transparent in
L
.
pavettae
, but very slightly infumated in
L
.
tenebrosus
, whereas in both
holotypes
the wings are slightly infumated.
Our examination of the
holotypes
of these two nominal species suggests that they represent a single species.
Ananthakrishnan & Sen (1980: 99)
state that the epimeral and posteroangular setae are subequal in
tenebrosus
but not subequal in
pavettae
. However, in both
holotypes
the epimeral setae are longer than the posteroangulars. The separation between the maxillary stylets in the
holotype
of
L. tenebrosus
is similar to that of the
holotype
of
L. pavettae
, and the original illustrations by
Ananthakrishnan & Jagadish (1969)
reflect this. However, the illustrations in
Ananthakrishnan & Muraleedharan (1974)
are incorrect, showing this gap narrower in
L
.
tenebrosus
. The host plant data of these two species are identical except that
tenebrosus
was collected one day later than
pavettae
.
Further, the sculpture and shape of the pelta of these two species are alike. We therefore conclude that the available specimens represent the same species.
Diagnosis.
Body brown except fore tibiae and all tarsi yellow. Antennal segments I and II brown, III–VII yellow, VIII with light brown tinge. Fore wing slightly infumated. Head as long as broad. Maxillary stylets not close together, wide apart. Antenna 8-segmented. Postocular setae as long as eyes, expanded at apex. Anteromarginal setae shorter than anteroangular setae. Epimeral setae much longer than posteroangulars. Metanotum with reticulate sculpture. Mesopresternum forming two lateral triangles. Fore wing parallel sided, with duplicated cilia; wing sub-basal setae arranged in a row. Fore tarsus with well developed tooth. Tergite IX setae S1 and S2 expanded apically in both sexes.
Specimens studied.
Holotype
female (macroptera) and one
paratype
male (macroptera) of
L. pavettae
,
India
: Andhra Pradesh: Tirupathi, 3000, galls of
Pavetta indica
,
15.vii.1968
.
Holotype
macroptera female of
L. tenebrosus
, Tirupathi
, 3000, galls of
Pavetta indica
,
16.vii.1968
, NPC.
Distribution.
India
(Andhra Pradesh: Tirupathi).
Liophloeothrips pictus
Ananthakrishnan
Liophlaeothrips pictus
Ananthakrishnan 1968
: 48
.
This species was described from one female and one male collected from dead branches.
Types
are not available.
Distribution.
India
(Andhra Pradesh: Tirupathi, Kerala: Tenmalai, Tamil Nadu: Tambaram).