On the Lathrobiina of Taiwan (Coleoptera: Staphylinidae: Paederinae)
Author
Assing, Volker
text
Beiträge Zur Entomologie = Contributions to Entomology
2010
2010-12-20
60
2
301
361
https://www.contributions-to-entomology.org/article/view/1781
journal article
10.21248/contrib.entomol.60.2.301-361
0005-805X
5365391
Lathrobium
(
Lathrobium
)
tarokoense
sp. n.
(
Figs 67-73
)
Type material:
Holotype
♂
: "
Taiwan
,
Hualien Hsien
, Taroko N. P., Ridge SE Nanhushi Hut,
2700 m
, 11.
V
.90,
A. Smetana
[
T52
] /
Holotypus
♂
Lathrobium tarokoensetarokoense
sp. n.
, det.
V
. Assing 2010" (cSme)
.
Paratypes
:
2 ♂ ♂
: same data as holotype (cSme, cAss)
.
Description:
Body length
4.3-4.8 mm
; habitus as in
Fig. 67
. External characters as in
L. involutum
(
Fig. 68
), except for the somewhat smaller body size.
♂
: tergite VIII as in
Fig. 69
; posterior margin of sternite VII very weakly concave, pubescence in postero-median portion not distinctly modified (
Fig. 70
); sternite VIII very weakly oblong, 1.05- 1.10 times as long as wide, posterior excision moderately deep and in almost symmetric position (i.e., almost in the middle), its depth approximately 1/8 the length of sternite (
Fig. 71
); aedeagus
0.75-0.85 mm
long, in lateral view with rather broad ventral process, and with internal structures of distinctive shape (
Figs 72-73
).
♀
: unknown.
Comparative notes:
Like the preceding species,
L. tarokoensetarokoense
belongs to the
L. involutum
group, as can be inferred from the similar external and sexual characters. It is distinguished from other species of this group particularly by the morphology of the aedeagus (ventral process, internal structures) and, except for
L. utriculatum
, by smaller body size. For characters separating it from
L. alesi
, whose aedeagus is somewhat similar to that of
L. tarokoense
, see the following section.
Etymology:
The specific epithet (adjective) is derived from the name of the national park where the
type
locality is situated.
Distribution and natural history:
Like the other species of the
L. involutum
group,
L. tarokoensetarokoense
probably has a restricted distribution. The
type
locality is situated in the Taroko National Park in
Hualien Hsien
, eastern central
Taiwan
. The
three males
were sifted from moist moss, leaf litter, and other debris in a primary, mostly coniferous forest at an altitude of
2900 m
.