Redescription and lectotype designation of Gynaikothrips microchaetus Ananthakrishnan & Jagadish (Thysanoptera: Phlaeothripidae)
Author
SHYAM, M.
Author
JOHNSON, TH.
Author
RACHANA, R. R.
Author
VARATHARAJAN, R.
Author
MOUND, L. A.
text
Zootaxa
2019
2019-12-03
4701
6
588
590
journal article
21145
10.11646/zootaxa.4701.6.8
76d20984-90c9-4e92-a089-50bb0eeb9bfc
1175-5326
3998738
Gynaikothrips microchaetus
Ananthakrishnan and Jagadish
(
Figs 1–9
)
Female macroptera. B
ody colour mainly brown; femora brown, tarsi yellow; fore tibiae yellow with small brown area at base, mid and hind tibiae brown with distal one-third yellow; tarsi yellow; antennal segments I–II brown, III–VIII uniformly yellow (
Fig. 3
); pronotal epimeral setae pale to very weakly shaded. Head longer than wide; with two pairs of slender, pointed, po setae not reaching to compound eyes (
Fig. 1
); po setae vary in length 16–43 microns, and also vary in position such that they are not always in a simple transverse row; maxillary stylets about one-third of head width apart, retracted to base of postocular setae (
Fig. 1
). Antennal segmentation and sense cones typical of genus. Pronotum epimeral setae well developed, apex weakly expanded (
Fig. 2
), am setae minute (6–15 microns), aa, ml and pa variable in length (10–30 microns); notopleural sutures complete. Fore tarsal tooth small, directed forwards (
Fig. 3
). Fore wings parallelsided, with 14–20 duplicated cilia. Prosternal basantra absent; mesopresternum boat shaped; metathoracic sternopleural sutures absent. Pelta triangular (
Fig. 4
); tergites II–VII with 2 pairs of sigmoid wing-retaining setae (
Fig. 7
); tube length variable, anal setae shorter than tube (
Fig. 6
).
Measurements
(
lectotype
female in microns).
Body length 2545. Head, length 275; width 222; po, inner pair 30; outer pair 20. Pronotum, length 158; width 282; major setae—am 15, aa 20, pa 24, ml 25, epim 96. Mesonotum lateral setae 30. Fore wing, length 930; sub-basal wing setae 16, 18, 30. Tergite IX setae, S1 225; S2 244; S3 198. Tube, length 289; width—base 71; apex 41; anal setae 244.
Male macroptera.
Similar to female in colour and structure but smaller, fore tarsal tooth very small. Sternite VIII fully occupied by pore plate (
Fig. 9
), also tergite VIII similarly occupied by this extensive pore plate except for a small triangle at median anterior margin (
Fig. 8
).
Measurements
(
paralectotype
male in microns).
Body length 2442. Head, length 258; width 208; po, inner pair 19; outer pair 19. Pronotum, length 146; width 273; major setae—am 16, aa 27, pa 22, ml 20, epim 84. Mesonotum lateral setae 34. Fore wing, length 860; sub-basal wing setae 10, 16, 26. Tergite IX setae, S1 181;
S2 26
; S3 225. Tube, length 235; width—base 70; apex 36; anal setae 213.
FIGURES 1–9
.
Gynaikothrips microchaetus
.
(1)
Head.
(2)
Pronotum.
(3)
Antenna & female fore tarsus.
(4)
Meso & metanota and pelta.
(5)
Fore wing sub-basal setae.
(6)
Segments IX–X.
(7)
Tergites V–VI.
(8)
Male tergite VIII.
(9)
Male sternite VIII.
Material studied:
Lectotype
female,
INDIA
,
Karnataka
,
Dharwar
from leaves of
Ficus
sp.,
10.x.1968
(
T
.
N. Ananthakrishnan
); three
paralectotype
males with same data as lectotype; deposited in
National Bureau of Agricultural Insect Resources
(
ICAR-NBAIR
),
Bengaluru
,
India
, also
Insect Museum
,
Manipur
University
,
Imphal
,
India.
Further specimens:
INDIA
,
Manipur
,
Manipur
University
campus
14 females
,
7 males
from leaves of
Ficus curtipes
,
12.xi.2014
(
Shyam Maisnam
)
;
Mizoram
,
Dampa Tiger Reserve
7 females
,
3 males
from leaves of
Ficus curtipes
,
27.iv.2015
(
Th. Johnson
) in
Insect Museum
,
Manipur
University, Imphal, India.