On the Scaphidiinae (Coleoptera: Staphylinidae) of Java, Indonesia
Author
Löbl, Ivan
Museum dhistoire naturelle, C. P. 6434, CH 1211 Genève 6, Switzerland
email: Ivan.lobl@bluewin.ch
text
Acta Musei Moraviae, Scientiae biologicae
2023
2023-11-01
108
1 - 2
1
34
journal article
277216
http://doi.org/10.5281/zenodo.10135885
482f3dde-6113-4733-945d-ae301578ea12
1211-8788
10135885
Scaphobaeocera basalis
sp. nov.
(
Figs 21, 22
)
Type material.
Holotype
female
,
JAVA
:
W. Java
Cibodas
,
50 km
E
Bogor
, 1400
1600 m
, 5
6.XI.1989
,
Löbl
,
Agosti
,
Burckh
[ardt] #3a (
MBBJ
).
Paratype
male
,
JAVA
:
W. Java
Cibodas
,
50 km
E
Bogor
,
1400 m
, 3
6.XI.1989
,
Agosti
,
Löbl
,
Burckhardt
#2a (
MHNG
).
Description.
Length 1.55
1.67 mm
, width 0.83
0.95 mm
, dorsoventral diameter 0.88
0.98 mm
. Head and body blackish, apical abdominal segments and appendages brown. Length/width ratios of antennomeres:
III 24
/6:
IV 17
/6:
V 30
/6:
VI 25
/7:
VII 41
/9:
VIII 25
/8:
IX 45
/9:
X 38
/
10 XI 43
/10. Pronotum not iridescent, lacking microsculpture, extremely finely punctate. Scutellum completely concealed. Elytron with strigulate microsculpture and weakly iridescent, sutural stria shallow, starting at side of pronotal lobe, parasutural stria hardly visible posterior of elytral midlength, evanescent anteriad. Elytral punctation as fine and sparse as pronotal punctation. Hypomeron lacking stria, appearing impunctate. Mesoventrite with mesal ridge. Mesanepisternum lacking microsculpture, with punctation very fine and sparse, similar to that on metaventral sides. Metaventrite flattened in middle, lacking mesal stria, finely and densely punctate on posterior two thirds and with short pubescence; lateral parts of metaventrite with strigulate microsculpture; submesocoxal lines parallel, appearing impunctate, submesocoxal areas about
0.02 mm
long. Metanepisternum flat, 0.05
0.07 mm
wide, narrowing anteriad, with deep, slightly curved suture. Tibiae straight. Ventrites with strigulate microsculpture. Ventrite I with punctation similar to that on metaventral sides; basal puncture row hardly visible.
Male
. Protarsomeres I to III strongly widened, with distinct tenent setae, protarsomere I as wide as apex of protibia. Aedeagus (
Figs 21, 22
)
0.49 mm
long.
Etymology.
The species epithet is a Latin adjective meaning basic.
Differential diagnosis.
The aedeagal characters suggest relationship with
S. lombokensis
Löbl, 2015
. The new species may be easily distinguished by its large and much darker body, the lateral parts of metaventrite bearing microsculpture, the tip of the median lobe acute and the parameres gradually widening posteriad.