Redefinition of Liroetis, with descriptions of two new species and an annotated list of species (Coleoptera: Chrysomelidae: Galerucinae)
Author
Bezděk, Jan
text
Acta Entomologica Musei Nationalis Pragae
2021
2021-12-31
61
2
529
614
journal article
10.37520/aemnp.2021.030
1804-6487
5821367
06FDFB43-0B61-4DA8-B260-D78ABD62756C
Liroetis alticola
Jiang, 1988
(
Figs 265–271
,
291
,
299, 305
)
Liroetis alticola
Jiang, 1988: 194
, 198 (original description).
Liroetis alticola
: JංൺඇǤ (1992): 658; Bൾൾඇൾඇ (2010): 478 (catalogue); YൺඇǤ et al. (2015): 248 (key), 248 (noted).
Type
locality.
‘[
China
:]
Yunnan
: Deqen’.
Type material examined.
Pൺඋൺඍඒඉൾ: 1 J (
Figs 265–269
), ‘[
Yunnan
, Deqin, Meili / Xueshan East slope
4100 m
/ Chinese Academy of Sciences] [in Chinese, w, combined p and h] // [
1982.VII 30
/ Collector: Huai-Cheng Chai] [in Chinese, w, combined p and h] //
PARATYPE
[y, p] // [No. 23] [in Chinese, w, h] // IOZ(E)1966990 [w, p] //
Liroetis alticola
/ Jiang [w, p]’ (
IZAS
).
Material examined.
CHINA
: Yඎඇඇൺඇ:
N Weixi, Luozhua,
7.75 km
E of Nianjua Mt.,
27°44′09″N
98°57′03″E
,
4080 m
,
15.vi.2015
, 1 J
1 ♀
, Belousov, Kabak & Davidian leg. (
PRCS
).
Diagnosis.
Colouration
. Head black with frontal tubercles and anterior part of vertex brownish. Pronotum yellowish brown with three black spots and two very small brownish spots laterally in transverse row; middle black spot heart- -shaped, lateral black spots comma-like. Scutellum black. Elytra yellowish brown with large black spot on humeral callus and three smaller black spots in transverse row on each elytron in three quarters of elytral length. Antennae and legs black. Meso- and metaventrite black, abdomen yellow with more or less distinct dark triangular spots laterally on each abdominal ventrite (only poorly indicated in
paratype
).
Body length
. JJ: 7.9–8.0 mm,
♀
:
8.2 mm
(J
♀
: 8.0–9.0 mm based on the original description).
Male
(
Figs 265–268, 270
). Antennae 0.68 times as long as body. Pronotum 1.52 times as wide as long, lustrous, covered with fine punctures, anterior margin with complete well visible border. Middle part of posterior margin of abdominal ventrite IV obliquely impressed, with narrow median incision. Last abdominal ventrite with wide longitudinal impression. Protarsomere I large, subtriangular, metatibial spur absent.
Aedeagus
(
Fig. 291
). Median lobe of aedeagus 5.43 times as long as wide; apical third narrower, parallel, with distinct very narrow median furrow, apex folded down, rounded, with small incision on tip; basal two thirds wider, with lateral margins slightly concave. Lateral view: ventral side straight except for folded apex and base; lateral elevation widely rounded, placed in middle of aedeagus length. Dorsal process 7.00 times as long as wide, 0.64 times as long as median lobe; narrow, gradually narrowing toward apex which is slightly extended subapically, apex rounded. Lateral view: dorsal process straight in basal two thirds, bent in apical third, ventral side of apical third slightly convex, apex on ventral side pointed. Apex in frontal view with two short processes directed downwards and separated by U-shaped incision.
Female
(
Fig. 271
). Metatibial spur absent. Last abdominal ventrite with posterior margin entire. Sternite VIII heart-shaped, middle part with triangular impression, lateral parts of posterior margin covered with large setae; tignum very short, 0.8 times as long as sternite VIII (
Fig. 305
). Spermatheca with well separated but relatively narrow nodulus, cornu U-shaped with long apical part, spermathecal duct sinuate (
Fig. 299
).
Differential diagnosis.
Within
Liroetis grandis
speciesgroup
L. alticola
is characterised by black legs and presence of black pattern on pronotum. Habitually similar species
L. octopunctatus
and
L. yulongnis
differ from
L. alticola
in pronotum covered with dense distinct punctures (pronotum lustrous, covered with very fine punctures in
L. alticola
).
Distribution.
China
:
Yunnan
(JංൺඇǤ 1988, present paper).
Comments.
The description of
L. alticola
contains two different spellings:
alticola
on pp. 194 and
allicola
on p. 198. The spelling
alticola
was fixed as the correct original spelling by the original author (JංൺඇǤ 1992) who is deemed to be the First Reviser based on Art. 24.2.4. (
ICZN 1999
). The names proposed with -
cola
ending are nouns in apposition (e.g. HൺඋൻൺർIJ 2018).