Two new species of the genus Laena Dejean (Coleoptera: Tenebrionidae: Lagriinae) from Hong Kong
Author
Schawaller, Wolfgang
Author
Aston, Paul
text
Zootaxa
2017
2017-11-06
4344
1
169
173
journal article
31626
10.11646/zootaxa.4344.1.10
a36889f4-ce38-49d0-a8c5-f0593505877a
1175-5326
1042223
D406E720-05AF-4EEC-B19F-C6BBD104C671
Laena walkeri
sp. n.
(
Figs. 3, 6
)
Holotype
(Ƌ):
China
,
Hong Kong
, Lung Fu Shan C. P., # 10 of
18.xi.2014
, leg. B. Guénard,
SMNS
.
Paratypes
:
Hong Kong
,
Lung Fu Shan C.P.
, # 12 of
18.xi.2014
, leg.
B. Guénard
, 1 ex.
SMNS
.
Hong Kong
,
Lung Fu Shan C.P.
, # 13 of
18.xi.2014
, leg.
B. Guénard
, 1 ex.
SMNS
.
Hong Kong
,
Pak Tam Chung
, # 17 of
5.–8.vi.2015
, leg. leg.
R. Ho Lee
&
Y. Luo
, 1 ex.
SMNS
.
# 198 of
30.vi.– 3.vii.2015
,
Hong Kong
,
Castle Peak
,
Winkler
extractor, leg.
R. Ho Lee
&
Y. Luo
, 1 ex.
SYSU
.
# 202 of
30.vi.–3.vii.2015
,
Hong Kong
,
Castle Peak
,
Winkler
extractor, leg.
R. Ho Lee
&
Y. Luo
, 1 ex.
SYSU
.
# 14 of
18.xi.2014
,
Hong Kong
,
Lung Fu Shan
C.P., leaf litter, disturbed secondary forest, leg.
B. Guénard
,
1 ♀
ex.
SYSU
.
# 36 of
29.vi.–2.vii.2015
,
Aberdeen
Resevoir,
Winkler
extractor, leg.
R. Ho Lee
&
Y. Luo
, 1 ex.
SYSU
.
# 196 of
30.vi.–3.vii.2015
,
Hong Kong
,
Castle Peak
,
Winkler
extractor, leg.
R. Ho Lee
&
Y. Luo
, 1 ex.
AFCD
.
# 7 of
20.xi.2014
,
Hong Kong
University Campus, disturbed secondary forest,
Winkler
extractor, leg.
R. Ho Lee
&
Y. Luo
1 ex.
AFCD
.
# 39 of
29.vi.–2.vii.2015
,
Aberdeen
Resevoir,
Winkler
extractor, leg.
R. Ho Lee
&
Y. Luo
, 1 ex.
AFCD
.
# 38 of
29.vi.–2.vii.2015
,
Aberdeen
Resevoir,
Winkler
extractor, leg.
R. Ho Lee
&
Y. Luo
, 1 ex.
AFCD
.
# 9 of
11.ix.2016
,
Hong Kong
,
Lantau
,
Ngong Ping
, leg.
P. Aston
,
Winkler
extractor, 1 ex.
PCPA
.
# 26 of
3.vii.2016
,
Hong Kong
,
Lantau
,
Ngong Ping
, leg.
P. Aston
,
Winkler
extractor, 1 ex.
PCPA
.
# 27 of
3.vii.2016
,
Hong Kong
,
Lantau
,
Ngong Ping
, leg.
P. Aston
,
Winkler
extractor, 1 ex.
PCPA
.
# 201 of
30.vi.–3.vii.2015
,
Hong Kong
,
Castle Peak
,
Winkler
extractor, leg.
R. Ho Lee
&
Y. Luo
, 1 ex.
PCPA
.
# 25 of
Hong Kong
,
Lantau
,
Ngong Ping
,
3.vii.2016
, leg.
P. Aston
, 1 ex.
BMNH
.
# 200 of
30.vi.–3.vii.2015
,
Hong Kong
,
Castle Peak
,
Winkler
extractor, leg.
R. Ho Lee
&
Y. Luo
, 1 ex.
BMNH
.
# 30 of
13–16.vii.2015
,
Lion Rock
, leg.
R. Ho Lee
&
Y. Luo
, 1 ex.
BMNH
.
# 197 of
30.vi.–3.vii.2015
,
Hong Kong
,
Castle Peak
,
Winkler
extractor, leg.
R. Ho Lee
&
Y. Luo
, 1 ex.
BMNH
.
Additional material
(all deposited
PCPA
): # 152 of
14.v.2015
,
Hong Kong
,
Sheung Wo Han
, leg.
R. Ho Lee
& Y
.
Luo. # 11 of
18.xi.2014
,
Hong Kong
,
Lung Fu Shan C.P.
, leaf litter, disturbed secondary forest, leg.
B. Guénard.
Description:
Body length 3.0–
5.5 mm
. Eyes normal, not prominent. Pronotum with large, but not confluent punctures, distance 0.5–2 puncture diameters, most punctures with longer erect setae; surface convex and shining, disc without impressions; lateral margins marked but not completely bordered, not completely rounded; posterior corners rounded; propleura with similar punctuation as on pronotum, but without setation. Elytra ovate with rows of punctures without striae, punctures of rows of similar size as punctures on pronotum, most punctures with longer and erect setae; intervals with a few scattered fine punctures, each bearing an erect seta of equal length, interval 9 with 3 indistinct setiferous pores, all intervals feebly convex; surface shining. Apex of elytra not prolonged. All femora without teeth, in some specimens middle and posterior femora each with a pair of opposite small granula. Tibiae of both sexes without pecularities. Apicale of aedeagus see
Fig. 6
.
Diagnosis:
L. walkeri
sp. n.
shares with
L. guangxica
Schawaller, 2008
from
Guangxi
the general body shape and size, the dorsal punctuation and setation, as well as the unarmed femora. However, in
L. guangxica
the pronotal lateral margins are completely bordered, the pronotum is widest in anterior third (widest in the middle in
L. walkeri
sp. n.
), and the aedeagal apicale is broader.
L. jiangxica
Schawaller, 2008
from
Jiangxi
and
L. guizhouica
Schawaller, 2008
from
Guizhou
have a different body shape and also a completely different aedeagal apicale.
Etymology:
Named in honour of John James Walker (
1851–1939
). Walker was a British marine engineer and voyaged around most of the world, collecting insects when on shore leave (see under
Laena ovipennis
Schuster, 1926
above). Even though the specimen of
Laena ovipennis
Schuster, 1926
, attributed by Schuster as having come from
Hong Kong
, but now known to have come from near
Shanghai
, Walker did have collecting trips to
Hong Kong
and
Macao
. After his retirement Walker lived in Oxford and became one of the editors of the Entomologist's Monthly Magazine. Walker's collections from the Pacific,
Australia
,
New Zealand
and the Mediterranean are housed in the Natural History Museum London and the Oxford University Museum of Natural History.
Ecology:
Extreme dates for imago,
14th May to 20th November
(no records for August or October, when the leaf litter is dry, most likely due to observer bias). Paler specimens were collected throughout, showing no clear emergence pattern. All specimens were caught by Winkler extractor or pitfall traps from leaf litter in wooded areas above
100 m
altitude.