Taxonomic revision of the Andean genus Eulibitia Roewer, 1912 (Arachnida, Opiliones, Cosmetidae), with the description of five new species
Author
Medrano, Miguel
C7F7D4CF-F9B2-44AF-9F03-86278ADBD4F2
Departamento de Invertebrados, Museu Nacional / UFRJ, Quinta da Boa Vista, São Cristóvão, 20940 - 040, Rio de Janeiro - RJ, Brazil. & urn: lsid: zoobank. org: author: C 7 F 7 D 4 CF-F 9 B 2 - 44 AF- 9 F 03 - 86278 ADBD 4 F 2 & Corresponding author: miangelmed @ gmail. com
miangelmed@gmail.com
Author
Kury, Adriano B.
60FAE1F8-87F7-4A5F-BE78-BEB25BC4F898
Departamento de Invertebrados, Museu Nacional / UFRJ, Quinta da Boa Vista, São Cristóvão, 20940 - 040, Rio de Janeiro - RJ, Brazil. & Email: adrianok @ gmail. com & urn: lsid: zoobank. org: author: 60 FAE 1 F 8 - 87 F 7 - 4 A 5 F-BE 78 - BEB 25 BC 4 F 898
adrianok@gmail.com
text
European Journal of Taxonomy
2017
2017-10-11
357
1
55
journal article
21990
10.5852/ejt.2017.357
f43659d6-17a6-488c-b88b-441dbc661fb7
2118-9773
3836357
7A3BDEB4-DCF4-4111-A164-573CB62DC09F
Eulibitia scalaris
(Sørensen, 1932)
comb. nov.
Figs 27–30
,
31A
,
33
;
Table 5
Libitia
(
Messa
)
scalaris
Sørensen
in
Henriksen, 1932: 414
.
Acromares lateralis
Goodnight & Goodnight, 1943: 2
, fig 7.
syn. nov.
Messa scalaris
–
Mello-Leitão 1933: 112
.
Messatana scalaris
–
Strand 1942: 398
.
Cynorta lateralis
–
Goodnight & Goodnight 1953: 38
.
Acromares lateralis
–
Flórez & Sánchez 1995: 368
. —
Kury 2003: 37
.
Diagnosis
This species is similar to
E. h-inscriptum
by having paramedian tubercles in areas I, III and on the posterior margin of the scutum, but differs from it because its ladder mask does not reach the lateral margins of the scutum (
Fig. 28
C–H), and from the other species of
Eulibitia
by the size of the coda (
Fig. 27A
), ⅓ of the mid-bulge length (vs ¼ of the mid-bulge length in other species, except
E
.
h-inscriptum
). It is similar to
E. castor
sp. nov.
by having two paramedian tubercles in areas I, III
Fig. 26.
Eulibitia pollux
sp. nov.
, ♂ (MNRJ 19369), distal part of penis.
A
. Dorsal view.
B
. Lateral view.
C
. Ventral view. Scale bars: 50 µm.
and on the posterior margin, and for the symmetrical mid-bulge, but it differs from it by the shape of the tubercles on the posterior margin, being rounded instead of acuminate (
Fig. 28A
).
Etymology
Scalaris
: refers to the shape of the ladder of white blots on DS.
Lateralis
: refers to the rails of the ladder mask on DS (visible in the
holotype
of
Acromares lateralis
).
Material examined
Syntypes
COLOMBIA
:
2 ♂♂
,
2 ♀♀
,
Cundinamarca Department
,
Bogotá
(
BMNH
, examined by photograph).
Other material
COLOMBIA
:
Boyacá Department
–
1 ♀
, Chiquinquirá, Monte Batallón Sucre,
5°35′59.33′′ N
,
73°50′9.28′′ W
,
2580 m
a.s.l.,
24
May
1979
, C. Hernandez leg. (
ICN-AO
56);
4 ♂♂
,
7 ♀♀
, Paipa, La Pradera,
5°45′36.26′′ N
,
73°8′29.37′′ W
,
2650 m
a.s.l.,
2
Dec.
1978
, I. de Arevalo leg. (
ICN-AO
84);
2 ♀♀
, Arcabuco,
5°45′0′′ N
,
73°28′45′′ W
,
2500 m
a.s.l., S. Sierra leg. (
ICN-AO
221);
1 ♂
, Arcabuco,
5.75012° N
,
73.433482° W
,
2600 m
a.s.l.,
23
Sep.
2013
, A. García and S. Galvis leg. (
ICN-AO
1202);
34 ♂♂
,
49 ♀♀
, Arcabuco,
5.75012° N
,
73.433482° W
,
2600 m
a.s.l.,
23
Sep.
2013
, A. García and S. Galvis leg. (
ICN-AO
1208);
7 ♂♂
,
6 ♀♀
, Villa de Leyva, SFF Iguaque,
5.720016° N
,
73.457901° W
,
2800 m
a.s.l.,
22
Sep.
2013
, A. García and S. Galvis leg. (
ICN-AO
1214);
2 ♂♂
,
3 ♀♀
, Arcabuco,
5.75012° N
,
73.433482° W
,
2600 m
a.s.l.,
23
Sep.
2013
, A. García and S. Galvis leg. (
ICN-AO
1372);
2 ♂♂
,
2 ♀♀
, Arcabuco,
5.75012° N
,
73.433482° W
,
2600 m
a.s.l.,
23
Sep.
2013
, A. García and S. Galvis leg. (
ICN-AO
1378);
2 ♀♀
, Villa de Leyva, SFF Iguaque, Cabaña Chaina, Lado Río,
5°42′ N
,
73°27′ W
,
2600 m
a.s.l. (
IAvH
40,
IAvH
42);
1 ♂
, same collection data as preceding (
IAvH
41);
1 ♀
, Villa de Leyva, Colegio Antonio
Nariño
,
5.63° N
,
73.527° W
,
2200 m
a.s.l. (
IAvH
46);
1 ♀
, Arcabuco, near El Cometa,
5.7439° N
,
73.4713° W
(
IAvH
53);
1 ♀
, Villa de Leyva, Colegio Antonio
Nariño
,
5.63° N
,
73.527° W
,
2200m
a.s.l.(
IAvH
93);
1♂
,Villa de Leyva,ColegioAntonio
Nariño
,
5.63°N
,
73.527°W
,
2200m
a.s.l.(
IAvH
94);
1 ♂
,
4 ♀♀
,Villa de Leyva, SFF Iguaque,
5°42′ N
,
73°27′W
,
2941 m
a.s.l.,
Nov.2011
,A. Garcia and AB Kury leg. (
MNRJ
19380).
Cundinamarca Department
–
1 ♂
, Susa,Vereda La Fragua, Finca Bermejales,
5°25′37.90′′ N
,
73°49′11.81′′ W
,
2710 m
a.s.l.,
30
Dec.
2006
, J. Pinzon and G. Alarcón leg. (
ICN-AO
481);
2 ♀♀
, Soacha, Vereda San Francisco, Granja Ecológica El Porvenir,
4°34′30.13′′ N
,
74°17′49.62′′ W
,
10
Jul.
2009
, pastureland, fallen trunk, G.Amat, C. Cantor, I. Romero and D. Martínez leg. (
ICN-AO
602);
2 ♂♂
, Suesca, Vereda Santa Rosa,
5°6′20.71′′ N
,
73°45′9.02′′ W
,
30
Mar.
2010
, paddock, under trunk, L.Sanchez leg.(
ICN-AO
669);
2♂♂
,SanAntonio del Tequendama,Vereda Quinta Colombia,4°35.603′′N, 74°20.170′′ W,
1733 m
a.s.l.,
20 Aug. 2008
, R. Botero, D. Luna and J. A. Ochoa leg. (
ICN-AO
792);
1 ♂
, San Francisco, near Pueblo,
4°57′37.40′′ N
,
74°16′45.08′′ W
,
8 May 2011
, D. Martínez, M. Medrano and A. García leg. (
ICN-AO
846);
2 ♂♂
,
2 ♀♀
, Albán, Vereda Namay
4°55′31.38′′ N
,
74°27′12.47′′ W
,
28Jun.2008
,J.Cepeda leg.(
ICN-AO
504);
11♂♂
,
11 ♀♀
,
4immature
,Cota [
4.813113°N
,
74.110399°W
],
30Aug. 2006
,A. Giupponi leg. (
MNRJ
17948);
1 ♂
, Mosquera, Sabrinsky [
4.688968° N
,
74.271632° W
],
10 Jan. 2014
, under rocks, J. Guerrero leg. (
ICN-AO
1404);
4 ♂♂
,
6 ♀♀
, Albán, Vereda Namay,
4°55′31.38′′ N
,
74°27′12.47′′ W
,
1584 m
a.s.l.,
Oct. 2007
–
Aug. 2008
, Cafetal, J. Cepeda, C. Cantor and D. Luna leg. (
ICN-AO
935);
1 ♂
,
1 ♀
, Cota Sendero, Cerro del Majuy,
4°48′42.16′′ N
,
74°6′59.14′′ W
,
3000 m
a.s.l.,
24 Jun. 2012
, under rock, C. Castellanos and Y. Cifuentes leg. (
ICN-AO
1058);
2 ♂♂
,
2 ♀♀
, Albán, Vereda Namay,
4°55′31.38′′ N
,
74°27′12.47′′ W
,
28 Jun. 2008
, J. Cepeda leg. (
ICN-AO
504);
1 ♂
,
1 ♀
, Albán, Reserva Natural Peñas del Aserradero,
4.875959° N
,
74.422635° W
,
2630 m
a.s.l.,
Aug. 2013
, under trunk, M. Medrano, E. Flórez, A. Sabogal and D. Martínez leg. (
ICN-AO
1387);
2 ♀♀
,
1 immature
, Chocontá, Vereda Boquerón Bajo, Finca Nápoles,
5.094417° N
,
73.670240° W
,
13 Feb 2015
, A. García and T. Rodrígues leg. (
ICN-AO
1434).
Description
Male
(based on MNRJ 17948)
MEASUREMENTS. CL = 1.62, AL = 3.06, CW = 2.63, AW = 4.31, Fe IV = 2.94, Ti IV = 2.38.
DORSUM (
Figs 27
,
28A
). Dorsal scutum beta-shaped, with symmetrical mid-bulge. Areas I, III and posterior margin with two paramedian tubercles. Lateral margins with irregular row of minute granules at
Fig. 27.
Eulibitia scalaris
(Sørensen in
Henriksen, 1932
)
comb. nov.
, ♂ (MNRJ 17948), habitus.
A
. Dorsal view.
B
. Panoramic, dorsal view.
C
. Frontal view.
D
. Posterior view.
E
. Lateral view. Scale bars: 1 mm.
Fig. 28.
Eulibitia scalaris
(Sørensen in
Henriksen, 1932
)
comb. nov.
(MNRJ 17948).
A
. ♂, habitus, dorsal view.
B
. Left metatarsus and tarsomeres of leg I, prolateral view.
C–F
. Variation of spot pattern on dorsal scutum. C–E, G–H: ♀♀. F: ♂. Scale bars: 1 mm.
mid-bulge. Posterior margin of scutum with row of small tubercles. Tergites with row of small tubercles and anal operculum finely granular.
VENTER (
Fig. 27
D–E). Free sternites finely granular; coxae II–IV finely and uniformly granular; coxa I with longitudinal row of tubercles and smooth area corresponding to lace area of pedipalp.
Fig. 29.
Eulibitia scalaris
(Sørensen in
Henriksen, 1932
)
comb. nov.
, ♂ (ICN-AO 1208).
A
. Trochanter and femur of leg IV, dorsal view.
B
. Same, prolateral view.
C
. Same, ventral view.
D
. Left pedipalpus, ectal view.
E
. Same, mesal view.
F
. Fingers of the hand of left chelicera, dorsal view.
G
. Left chelicera, dorsal view. Scale bars: A–C = 1 mm; D– E = 500 µm; F–G = 200 µm.
CHELICERAE (
Fig. 29
F–G). Basichelicerite uniformly covered with tubercles of different sizes, some basal and one mesodistal larger; movable finger with row of ten tubercles; fixed finger with four tubercles, decreasing in size from basal to distal part of finger.
PEDIPALPS (
Fig. 29
D–E). Trochanter with strong ventral apophysis. Femur with pronounced dorsal keel, with ventral row of eight setiferous tubercles and mesodistal process. Patella with mesal keel formed by five small tubercles and large one distally. Shallow slit along tibia mesal surface, separating dorsal and ventral sides.
LEGS (
Figs 28B
,
29
A–C). Coxa IV granulated, with small clavi inguines, larger in females. Trochanter IV with small retro-distal apophysis. Femur IV substraight, with two longitudinal ventral rows of small
Fig. 30.
Eulibitia scalaris
(Sørensen in
Henriksen, 1932
)
comb. nov.
, ♂ (ICN-AO 1208), distal part of penis.
A
. Lateral view.
B
. Dorsal view.
C
. Ventral view.
D
. Detail of MS C, MS D1, MS E1 and microsetae, ventral view. Scale bars: A, C = 50 µm; B = 20 µm; D = 10 µm.
Table 5.
Measurements of body and appendages of
Eulibitia scalaris
(Sørensen in
Henriksen, 1932
)
comb. nov.
ICN-AO 792 (♂)
|
ICN-AO 792 (♂)
|
ICN-AO 1414 (♂)
|
ICN-AO 602 (♀)
|
ICN-AO 602 (♀)
|
MNRJ 19380 (♂)
|
MNRJ 19380 (♀)
|
MNRJ 17948 (♂)
|
MNRJ 17948 (♀)
|
CL |
1.65 |
1.85 |
1.57 |
1.49 |
1.42 |
1.52 |
1.53 |
1.62 |
1.60 |
AL |
2.70 |
3.13 |
2.68 |
2.71 |
3.02 |
2.65 |
2.59 |
3.06 |
3.07 |
CW |
2.53 |
2.77 |
2.46 |
2.47 |
2.43 |
2.38 |
2.36 |
2.63 |
2.58 |
AW |
3.97 |
4.80 |
3.75 |
3.70 |
4.03 |
3.68 |
3.73 |
4.31 |
4.22 |
Fe I |
2.05 |
2.29 |
1.63 |
1.58 |
1.63 |
1.67 |
1.51 |
1.70 |
1.61 |
Ti I |
1.42 |
1.62 |
1.26 |
1.11 |
1.14 |
1.27 |
1.08 |
1.23 |
1.15 |
Fe II |
4.05 |
4.31 |
2.95 |
2.57 |
2.84 |
3.23 |
2.70 |
3.21 |
2.88 |
Ti II |
3.13 |
3.61 |
2.21 |
1.93 |
2.08 |
2.24 |
1.96 |
2.22 |
2.00 |
Fe III |
3.12 |
3.37 |
2.51 |
2.29 |
2.36 |
2.59 |
2.40 |
2.52 |
2.35 |
Ti III |
1.85 |
2.31 |
1.64 |
1.49 |
1.57 |
1.65 |
1.44 |
1.80 |
1.50 |
Fe IV |
3.78 |
4.34 |
3.09 |
2.57 |
2.83 |
3.26 |
2.64 |
2.94 |
2.96 |
Ti IV |
2.62 |
3.17 |
2.33 |
1.93 |
2.15 |
2.44 |
2.17 |
2.38 |
2.23 |
tubercles along entire length. Patella IV substraight, with small setiferous tubercles. Tarsal counts: 5–5/10–10/6–6/6–7.
COLOR (
Fig. 27
). Body and appendages color background 40 (Strong Reddish Brown) mottled in 44 (Dark Reddish Brown), ladder mask 104 (Pale Greenish Yellow). Trochanters and tarsomeres 83 (Brilliant Yellow).
GENITALIA (
Fig. 30
). VP of penis trapezoidal, narrower basally, with distal border concave; dorsal apophysis of glans subsquare to rounded, wattle of stylus long. Shapes and organization of macrosetae as follows: MS C1–C2 large, curved and flat; MS D1–D2 large and straight; MS A1–A2 large, straight, cylindrical, located in basal middle of ventral plate; MS B and MS E1–E2 ventral, very small, immersed in microsetae. MS B most basal MS. Microsetae confined to lateral margins of ventral plate.
Variation
Pattern of yellow spots as in
Fig. 28
C–H. Tubercles of pedipalpal femur vary in number from 5 to 8. Tarsal counts: 5–6; 7–12; 6–7; 6–7. Variation of measurements is given in
Table 5
.
Female
With larger clavi inguines and longer coda than males (
Fig. 28
F–G). Males with thicker basitarsus (but not notably swollen) (
Fig. 28B
).
Distribution
E. scalaris
occurs in the WWF ecoregions: (1)
Magdalena
Valley montane forests (NT0136), tropical and subtropical moist broadleaf forest biome, in
Cundinamarca
and
Boyacá
Departments, (2)
Magdalena
Valley dry forests (NT0221), tropical and subtropical dry broadleaf forest biome, in
Tolima Department
, and (3) Northern Andean páramo (NT1006), montane grassland and shrubland biome, in
Cundinamarca
and
Boyacá
Departments (
Fig. 33
).
Fig. 31.
Living specimens.
A
.
Eulibitia scalaris
(Sørensen in
Henriksen, 1932
)
comb. nov.
(ICN-AO 1208), photograph by Andrés García, Arcabuco, Boyacá Department.
B
.
Eulibitia pollux
sp. nov.
, photograph by M. Medrano, Choachi, Cundinamarca Department.
Remarks
Goodnight & Goodnight (1943)
described
Acromares lateralis
and placed it in that genus because they thought that the outstanding tubercles of the dorsal scutum were localized in area IV. However, examination of a photograph of the
type
material allows us to conclude that the tubercles are on the posterior margin of the scutum instead of on area IV and to recognize this species as a synonym of
E. scalaris
comb. nov.