Four new species and new records of Veraphis Casey in Japan (Coleoptera, Staphylinidae, Scydmaeninae)
Author
Jałoszyński, Paweł
text
Zootaxa
2019
2019-11-26
4701
1
54
64
journal article
24794
10.11646/zootaxa.4701.1.4
ca29e500-63fd-4f87-b24b-c41cdfa2cf1f
1175-5326
3557825
338B950C-1590-4E98-8254-83DD1AD39259
Veraphis aomoriensis
sp. n.
(
Figs 3
,
9–10
,
17–18
,
23
,
25
)
Type material.
Holotype
:
JAPAN
(
Honshu
,
Aomori Pref.
):
♂
, two labels: „[Aomori: Japan] / Mt. Iwaki, alt
800m
/
29. IX. 1992
/
M. Sakai
lgt. / (in leaf litter)“ [white, printed], „
VERAPHIS
/
aomoriensis
m. /
P. Jałoszyński
, 2019 /
HOLOTYPUS
” [red, printed] (
EUMJ
).
Diagnosis.
Male protrochanter unmodified; male protibia with subapical fin-like projection about as broad as 3/4 of tibial width; median lobe of aedeagus in lateral view weakly curved; in ventral view with shallowly concave walls in subapical region only; ventral diaphragm about as long as 1/3 of median lobe, close to basal margin of ae- deagus; apical margin rounded; parameres in lateral view weakly curved.
Description.
BL
1.35 mm
. Body of male (
Fig. 3
) flattened, slender, moderately dark brown, covered with yel- lowish vestiture, tarsi slightly lighter.
Head broadest at large, moderately convex eyes, HL
0.15 mm
, HW
0.25 mm
; vertex with pair of small postero- median pits, each prolonged by shallow but distinct longitudinal groove extending anterad to posteromesal margin of weakly elevated supraantennal tubercle; area between grooves distinctly flattened and depressed in relation to convex sides of vertex and frons. Punctures on head dorsum fine and shallow, inconspicuous; setae short, sparse and suberect. Antennae slender, with distinctly demarcated trimerous club, AnL
0.53 mm
; antennomeres I–II distinctly elongate; III distinctly transverse; IV about as long as broad; V indistinctly elongate, VI about as long as broad, VII–X each distinctly transverse (VIII narrower than VII), XI as broad as long and slightly narrower than X.
Pronotum nearly semielliptical, broadest at base; PL
0.33 mm
, PW
0.38 mm
; anterior margin broadly and evenly rounded; lateral margins strongly rounded in anterior third, in posterior half nearly straight and parallel, hind angles obtuse and blunt; posterior margin indistinctly bisinuate. Pronotal base with distinct median antebasal pit, lacking transverse groove, and with lateral pair of elongate and deep impressions, lateral pronotal margins narrowly carinate in posterior half. Punctures on pronotal disc fine and inconspicuous; setae short and sparse, suberect.
Elytra slightly more convex than pronotum, together oval, broadest slightly in front of middle; EL
0.70 mm
, EW
0.53 mm
, EI 1.33; humeral calli well-marked, elongate. Surface of elytra less glossy than pronotum, covered with fine, superficial, inconspicuous punctures and setae similar to those on pronotum but distinctly thicker.
Legs moderately long and slender; protrochanter unmodified, protibia with conspicuously large subapical finlike projection (
Fig. 23
).
Aedeagus (
Figs 9–10
,
17–18
) elongate and slender; AeL
0.30 mm
; in ventral view median lobe parallel-sided in proximal 3/4, slightly constricted in subapical region, with rounded apical portion; ventral diaphragm small, about as long as 1/3 of median lobe and with its proximal margin close to base of aedeagus; in lateral view median lobe weakly curved; parameres weakly curved, each with one tiny apical seta and one longer subapical seta.
Female. Unknown.
Distribution.
Japan
, northern Honshu (
Fig. 25
).
Etymology.
The name
aomoriensis
refers to the
Aomori Prefecture
.
Remarks.
Veraphis aomoriensis
belongs to the
sawadai
group of species, and is sympatric with
V. mutsuensis
. It is unique among members of this group in having the aedeagus with rounded instead of emarginate apex.