A revision of the Alevonota species of the Palaearctic region. III Two new species Irom Taiwan, a new combination, a new synonymy, and additional records (Coleoptera, Staphylinidae, Aleocharinae)
Author
Assing, Volker
vassing.hann@t-online.de
text
Linzer biologische Beiträge
2019
2019-07-26
51
1
235
246
journal article
22868
10.5281/zenodo.3762479
7f372a4a-9104-48cc-8f6a-e609a7b313f3
0253-116X
3762479
016AAB3F-8AE2-4759-B95A-DEAA074768CD
Alevonota hetzeli
nov.sp.
(
Figs 6-10
)
T y p e m a t e r i a l:
Holotype
♂
: ̎
TAIWAN
,
Hualien
,
Guanyuan
, pine forest, sifted,
2459 m
,
24°11'22''N
,
121°20'22''E
,
1.VIII.2018
,
Hetzel
leg. /
Holotypus
♂
Alevonota
hetzeli
sp.
n.
det.
V.
Assing
2019̎ (cAss).
E t y m o l o g y: This species is dedicated to Andreas Hetzel (Hildesheim), who collected the
type
material of both
A. calliceroides
and
A. hetzeli
.
D e s c r i p t i o n: Body length
3.9 mm
; length of forebody
1.8 mm
. Habitus as in
Fig. 6
. Coloration: head black; pronotum blackish-brown; elytra dark-brown; abdomen blackish-brown with the posterior margins of tergites III-VII and the posterior portion of tergite VIII reddish-brown; legs yellowish-brown; antennae blackish.
Head (
Fig. 7
) 1.1 times as broad as long, broadest across eyes; lateral contours between eyes and posterior constriction of head weakly convex, i.e., posterior angles completely obsolete; dorsal surface with fine and moderately sparse punctation, narrowly impunctate along middle; interstices with distinct microreticulation.
Eyes large and bulging, approximately as long as distance from posterior margin of eye to posterior constriction of head in dorsal view. Antenna (
Fig. 8
)
1.2 mm
long; antennomeres IV transverse, but less than 1.5 times as broad as long, V-IX weakly transverse, X nearly as long as broad, and XI elongate, slightly longer than the combined length of IX and X.
Figs 1-10
:
Alevonota calliceroides
(
1-5
) and
A. hetzeli
(
6-10
): (
1, 6
) habitus; (
2, 7
) forebody; (
3, 8
) antenna; (
4-5, 9-10
) median lobe of aedeagus in lateral and in ventral view. Scale bars: 1, 6: 1.0 mm; 2-3, 7-8:
0.5 mm
; 4-5, 9-10:
0.2 mm
.
Figs 11-18
:
Alevonota hepatica
: (
11-12
) median lobe of aedeagus in lateral and in ventral view; (
13-14
) spermatheca; (
15
) male tergite VIII; (
16
) male sternite VIII; (
17
) female tergite VIII; (
18
) female sternite VIII. Scale bars: 0.2 mm.
Figs 19-21
:
Alevonota hepatica
: (
19
) labium; (
20
) maxilla; (
21
) antenna. Scale bars: 21: 0.5 mm; 19-20: 0.1 mm.
Pronotum (
Fig. 7
) as broad as long and 1.1 times as broad as head, broadest approximately in the middle; lateral margins weakly convex in dorsal view; pubescence of midline directed posteriad; punctation similar to that of head, but slightly denser; interstices with distinct microreticulation.
Elytra (
Fig. 7
) approximately as long as pronotum; punctation dense and fine, but more distinct than that of head and pronotum; interstices with microreticulation. Hind wings fully developed.
Abdomen narrower than elytra; tergites III-V with rather deep anterior impressions; punctation moderately sparse and fine, but distinct; interstices with distinct microsculpture predominantly composed of short transverse meshes; posterior margin of tergite VII with palisade fringe.
♂: posterior margins of tergite VIII and sternite VIII strongly convex; median lobe of aedeagus (
Figs 9-10
)
0.39 mm
long and slender.
♀
: unknown.
C o m p a r a t i v e n o t e s:
Alevonota hetzeli
is readily distinguished from
A. calliceroides
and
A. taiwanensis
by much smaller, and from
A. laevigata
PACE, 2009
(
Taiwan
:
Taichung
) by distinctly larger body size alone. It differs from the two similarly sized
A. taiwanica
and
A. longicornis
PACE, 2009
as follows:
from
A. taiwanica
(male unknown) by much more bulging eyes, distinctly less transverse antennomeres IV-X, and a differently shaped head (
A. taiwanica
: lateral contours behind eyes somewhat parallel for some distance);
from
A. longicornis
by distinctly transverse antennomeres IV (
A. longicornis
: antenno-
meres IV approximately as long as broad), larger and more convex eyes, and by the shape of the aedeagus.
For illustrations of
A. taiwanica
and
A. longicornis
see
PACE (2009)
.
D i s t r i b u t i o n: The
type
locality and the circumstances of collection are identical to those of
A. calliceroides
.