Taxonomy of the katydids (Orthoptera: Tettigoniidae) from East Asia and adjacent islands. Communication 13
Author
Gorochov, A. V.
text
Far Eastern Entomologist
2020
2020-02-04
400
1
36
http://dx.doi.org/10.25221/fee.400.1
journal article
10.25221/fee.400.1
2713-2196
7165406
ADBBDA1C-E11F-410A-BECC-391662FE5B3F
Genus
Liara
Redtenbacher, 1891
Type
species:
Liara rufescens
Redtenbacher, 1891
, by subsequent designation (Kirby,
1906).
NOTE
. Ingrisch (1998) included in this genus several species previously described in the genera
Liara
,
Acanthocoryphus
Karny, 1907
and
Oxystethus
Redtenbacher, 1891
(the latter name was changed into
Unalianus
Koçak et Kemal,
2009 in
connection with homonymy).
Status of the second taxon was reduced by him up to subgeneric one. But for some species from the third taxon, the genus
Oxystethus
was preserved, although these species have almost all their morphological characters very similar to those of
Liara
s. str.
and
Acanthocoryphus
(including very characteristic structure of the distal part of their male cerci; see
Figs 42, 44
).
Probably this author understood that
Unalianus
(=
Oxystethus
) is also a subgenus of
Liara
s.
str., because he considered all species of these “genera” in the same key (but for the other genera, he prepared separate keys in the same monograph). Possibly, his opinion was based on small differences in shape of the male genitalia: in
Liara
s. str.
, these genitalia have a pair of rather large and semisclerotized lobes near middle or subapical parts of the genital sclerites,
and apical parts of these sclerites are situated near each other; but in
Unalianus
, the male genitalia lack such lobes, and apical parts of the genital sclerites are widely separated from each other. However, these sclerites in
Acanthocoryphus
are intermediate: with apical parts situated as in
Liara
s. str.
, but without additional lobes (i.e. as in
Unalianus
). It is a reason that the genus
Liara
s. l.
is here considered as consisting of three subgenera:
Liara
s. str.
,
Acanthocoryphus
and
Unalianus
stat. n. These subgenera differ from each other in the abovementioned characters of male genitalia (for comparison see
Figs 34, 41, 50
).