Seven new species of the genus Cybaeus (Araneae, Cybaeidae) from Korea
Author
Seo, Bo Keun
text
Journal of Species Research
2016
2016-10-31
5
3
571
583
http://dx.doi.org/10.12651/jsr.2016.5.3.571
journal article
10.12651/JSR.2016.5.3.571
2713-8615
13143872
40D0BCA3-257E-44C1-88F5-94F35BE65FB4
Cybaeus songniensis
n. sp.
ẆƞƌặHŔ
(
ṳAE
) (
Figs. 4
AE, 5L, M, 6SU, 7PR)
Material examined.
Holotype
:
♂
, mixed forest (
36°29′ 35″N
,
127°49′36″E
, alt.
347 m
),
5.3 km
south of
Beopju Temple in Mt. Songni
,
Songnisanmyeon
,
Boeungun
,
Chungcheongbukdo
,
22 August 2011
,
T. B. Ryu
.
Paratype
: 1$, same data as holotype.
Etymology.
The specific name comes from the
type
lo cality, Mt. Songni.
Diagnosis.
The new species is similar to
C. jiriensis
n. sp.
in the abdominal pattern, the embolus length of male palp, the interval between the embolic base and the conductor of male palp, the apophysis teeth number and the apophysis shape of male palpal patella, and the vesicle shape of female spermatheca, but can be easily distinguished from the latter by the normal cymbium tip of male palp, the epygine, the small size and the separated position of the anterior vesicles, and the curved copulatory duct connected with the anterior vesicle of female spermatheca (
Figs. 4
AE, 5L, M, 7PR).
Description.
Male (
holotype
). Total length 4.35. Habitus as in
Fig.
5M
. Carapace brown, 2.77 long, 2.08 wide; radial grooves and linear fovea distinct. Clypeus height 3.4 times of diameter of ALE. AER 0.60, PER 0.75; AER and PER retrocurved slightly in dorsal view. AME 0.13, ALE 0.17, PME 0.14, PLE 0.16, AMEAME 0.04, AMEALE 0.04, PMEPME 0.13, PMEPLE 0.10, AMEPME 0.14, and ALEPLE 0.05. Median ocular quadrangle, posterior side>height>anterior side (30: 27: 17). Chelicera with three promarginal and eight minute retromarginal teeth. Sternum 1.32 long, 1.26 wide. Labium 0.38 long, 0.44 wide. Leg measurements: I 9.96 (2.58, 0.95, 2.65, 2.33, 1.45), II 8.25 (2.27, 0.88, 1.95, 1.89, 1.26), III 6.80 (1.89, 0.76, 1.32, 1.70, 1.13), IV 8.83 (2.33, 0.76, 2.02, 2.46, 1.26). Palp 3.08 (1.13, 0.44, 0.38, 1.13). Leg I/c 3.60. Fem. I/c 0.93. Tib. I/c 0.96. Met. I/c 0.83. Pat. I+ tib. I/c 1.30. Met. I/tar. I 1.61. Met. IV/tar. IV 1.95. Leg spination pattern: Femora; I d110, p001; II d11, p0001; III d111, p011, r011; IV d110, p0001, r0001. Tibiae; I d0001, p111, v221; II d101, p111, v221; III, IV d11, p111, r11, v22 2. Metatarsi; I p11, r001, v220; II p1102, r000 1, v221; III p1112, r1112, v221; IV p122, r1 12, v1121. Abdomen oval and dark, with two pairs of pale dots and four chevrons longitudinally, and 1.89 long, 1.51 wide. Palp (
Figs. 4
AC, 6SU): tibia shorter than patella; patella apophysis rather pointed with 9 conical teeth; embolus short and slender; interval between embolic base and conductor narrow.
Female (
paratype
). Total length 4.98. Habitus as in
Fig.
5L
.
Carapace
2.84 long, 1.95 wide.
Clypeus
height 2.9 times of diameter of
ALE
.
AER
0.61,
PER
0.83.
AME
0.09,
ALE
0.17,
PME
0.14,
PLE
0.17,
AMEAME
0.07,
AMEALE
0.04,
PMEPME
0.14,
PMEPLE
0.12,
AMEPME
0.17, and
ALEPLE
0.04.
Median
ocular quadrangle, posterior side>height>anterior side (34: 30: 18).
Chelicera
with three promarginal and eight minute retromarginal teeth.
Sternum
1.32 long, 1.26 wide.
Labium
0.38 long, 0.44 wide.
Leg
measurements: I 7.63 (2.21, 0.88, 1.83, 1.64, 1.07), II 7.00 (2.08, 0.82, 1.58, 1.51, 1.01), III 6.25 (1.83, 0.76, 1.20, 1.51, 0.95), IV 8.01 (2.21, 0.76, 1.83, 2.08, 1.13).
Palp
3.15 (1.01, 0.50, 0.57, 1.07).
Leg I
/c 2.69.
Fem. I
/c 0.78.
Tib. I
/c 0.64.
Met. I
/c 0.58.
Pat. I
+ tib. I/c 0.95.
Met. I
/tar. I 1.53.
Met. IV
/tar. IV 1.84.
Leg
spination pattern:
Femora
; I d11, p001; II d11, p001, r010; III d111, p011, r011; IV d1 11, r001.
Tibiae
; I d11, p111, r001, v2210; II d11, p111, v2211; III d11, p11, r11, v222; IV d11, p111, r011, v112.
Metatarsi
; I p11, r11, v2 20; II p112, r11, v221; III p1112, r1112, v2 21; IV p11102, r112, v221.
Abdomen
dark gray, 2.58 long, 1.83 wide.
Epigynum
: atrium wide, with a pair of copulatory openings.
Internal
genitalia: spermatheca with an anterior mediumsized pearshaped vesicle and a posterior gourdlike vesicle; curved copulatory duct connected with anterior vesicle dorsally; fertilization duct short (
Figs. 4D, E
,
7
PR)
.
Habitat.
Mixed forest.
World Distribution.
Korea
(
Chungcheongbukdo
).