New taxa and notes of katydids from the tribe Meconematini (Orthoptera: Meconematinae) from Brunei Darussalam (Part 2)
Author
Tan, Ming Kai
Author
Wahab, Rodzay Bin Haji Abdul
text
Zootaxa
2018
2018-04-12
4407
4
582
590
journal article
30270
10.11646/zootaxa.4407.4.10
bee3dfe9-1fc5-4126-a232-13399cc60df0
1175-5326
1221034
AF8BB6DB-0924-4D0B-B709-200AF81E65BC
Leptoteratura
(
Rhinoteratura
)
chela
Tan, Gorochov & Wahab, 2017
(
Fig. 3
)
http://lsid.speciesfile.org/urn:lsid:
Orthoptera
.speciesfile.org:TaxonName:499449
Material
examined.
1 female
(KB.17.113),
Brunei Darussalam
, Ulu
Temburong
National Park,
Kuala Belalong Field Studies Centre
along
Ashton Trail
, primary ridge dipterocarp forest,
N4.54646
,
E115.15693
, 135.2±
6.9 m
.a.s.l., under foliage of tree,
29 July 2017
, 1853 hours, coll.
M. K. Tan
(dried pinned,
ZRC
).
Female description.
Similar to male in habitus (
Fig. 3A
). Tenth abdominal tergite with posterior margin concave in the middle. Epiproct small and triangular. Cercus slender at the base, swollen in the middle before tapering to a subacute apex; curved at the base, generally straight thereafter (
Figs. 3B, 3C
). Subgenital plate short, small, and transverse, much wider than long; with posterior margin feebly concave broadly (
Fig. 3C
). Ovipositor long; with base slightly swollen, wider than in the middle; with middle third narrow (when viewed in profile), dorsal and ventral margins parallel; with apical third wider than middle third, tapering to an acute apex; feebly sinuated (
Fig. 3C
). Dorsal valve at apex smooth; ventral valve distinctly longer than dorsal valve, finely denticulated along margin near apex; ventral valve forming a small hook at the apex, apex pointing ventrad (
Fig. 3D
).
Colouration. Similar to male.
Measurement (in mm). BL = 8.8, BWL = 19.2, PL = 3.6, TL = 17.4, HWT = 1.3, HFL = 8.8, HTL = 10.7, OL = 4.8.
Comparison.
The female differs from congeners by the combination of ovipositor with ventral valve distinctly longer than dorsal valve, forming a small hook at the apex and subgenital plate small and transverse; from subcongeners with known females:
L. pulchra
Gorochov, 2008
from Mount Trus Madi, Borneo (with ventral valve shorter, without hook instead); and
L. sharovi
Gorochov, 1993
from
Vietnam
(with ventral valve shorter, with hook instead).
It also differs from congeners with unknown subgeneric status (owing to unknown males):
L. capreola
(Redtenbacher, 1891)
from Java (with ventral valve shorter without hook instead);
L. cemande
Gorochov, 2008
from Java (with subgenital plate longer than wide instead);
L. gialai
Gorochov, 2008
from
Vietnam
(with subgenital plate sophisticated instead);
L. martynovi
Gorochov, 1998
from
Vietnam
(with ventral valve shorter, and more strongly curved apically instead);
L. raoani
Gorochov, 2008
from
Vietnam
(with ventral valve shorter, without hook; subgenital plate elongated with subacute apex instead); and
L. uniformis
Gorochov, 2008
from Mount Trus Madi, Borneo (with ventral valve without hook; subgenital plate with posterior margin truncated, with triangular posterolateral corners instead).