The spider genera Euthycaelus Simon and Schismatothele Karsch (Mygalomorphae, Theraphosidae)
Author
Guadanucci, José Paulo Leite
Author
Weinmann, Dirk
text
Zootaxa
2014
3795
3
275
288
journal article
http://dx.doi.org/10.11646/zootaxa.3795.3.3
b23d9efe-a829-475a-bf08-42060026f3e3
1175-5326
227876
2BF4360C-7876-4C02-8AAE-11CCBB2774EF
Euthycaelus norae
sp. nov.
(
Figs
2
A–H;
Tables
3–4
)
Type
material.
Holotype
♂,
MZSP
28436
, La Azulita, Merida,
Venezuela
,
Paratypes
: ♀,
MZSP
28442
; ♂,
MZSP
28439
; ♀
MZSP
28440
; ♂
MZSP
28435
; ♂
MZSP
28434
: ♀
MZSP
28432
, same data as
holotype
; ♂, ♀
MLS
396,
13.X.
2000
, D. Weinmann
leg
, same locality as
holotype
; male and female
SMF
, La Azulita, Merida
Venezuela
,
13
.X.
2000
,
leg
: Dirk Weinmann.
Etymology.
The species epithet is in honor of Nora Alvarez, (spouse of DW) for her support.
Diagnosis.
Males of
E. norae
can be distinguished from those of their congeners by the shape of palpal bulb (
Figs
2
A–C), which presents a distinct embolus tip, with a small keel on the dorsal face. Females are recognized by the flat shape of spermathecae receptacles (
Figs
2
G, H).
Description.
Male (
MZSP
28436
). Total length:
26.4
. Carapace: length
11.7
; width
9.6
. Eye tubercle: length
2.2
; width
1.3
. Labium: length
1.3
; width
1.6
. Sternum: length
4.8
; width
4.5
. Basal segment of chelicerae with
11
teeth. Labium subquadrate, with more than
200
cuspules. Maxillae with more than
120
cuspules, each one. Thoracic fovea straight, narrow. Spines: Palp: femur (d) 0-0-p
2
, tibia (p) ap
1
, (r)
12
thick spines. Legs: I: femur (d) 0-0-p
1
,patela (v)
2
, tibia (p) 0-
0-1
, (r)
2
-
2
-
1
, metatarsus (v)
2
-0-ap
2
; II: femur (d) 0-0-p
2
, patela (v)
2
, tibia (v)
4
-
2
-
1
-ap
3
, (p)
0-1
-
1
, metatarsus (v)
2
-
1
-ap
1
, (p)
1
-
1
-ap
1
, (r)
0-1
-ap
1
; III: femur (d) p
1
-p
2
-p
1
, patella (p)
1
, tibia (r)
1
-
0-1
, (v)
2
-
2
-ap
2
, (p)
1
-
1-2
-ap
1
, metatarsus (r)
1
-ap
1
, (v)
3
-
2
-ap
3
, (p)
1
-
1
-ap
1
; IV: femur (d) 0-0-r
1
, tibia (v)
2
-
2
- ap
3
, (r)
1
-
1
-
1
,(p)
1
-01-
1
metatarsus (v)
2-3
-ap
3
, (p)
1
-
1
-ap
1
, (r)
1
-
0-1
-ap
1
. Palpal bulb with short embolus, single serrated small keel on ventral surface, narrow keel on dorsal surface near embolus (
Figs
2
A–C). Palpal tibia swollen, with long spines disposed in two rows (
Figs
2
E, F). Retrolateral branch of tibial spur very long, tapering, with small spine on its midlength, prolateral branch longer than contiguous spine (
Fig.
2
D). Metatarsus I bends retrolaterally to tibial spur. Metatarsal scopulae extent (ventral surfaces only): I and II, for almost entire length; III, for more than distal half; IV, for less than half. Tarsal scopulae (ventral surfaces only): I–II entire; III–IV divided by longitudinal band of thick setae. Paired tarsal claws with row of small teeth.
TABLE 3.
Euthycaelus norae
sp. nov.
, ♂ (MZSP 28436), length of left palp and leg segments.
Palp |
Leg I |
Leg II |
Leg III |
Leg IV |
Femur |
7.1 |
11 |
10 |
8.8 |
11.9 |
Patella |
3.8 |
6 |
5.1 |
4.2 |
4.7 |
Tibia |
6.3 |
9.2 |
7.6 |
6 |
9.2 |
Metatarsus |
- |
8.9 |
8.1 |
8.5 |
13 |
Tarsus |
3.2 |
6.1 |
5.2 |
5 |
5.5 |
Total |
20.4 |
41.2 |
36 |
32.5 |
44.3 |
FIGURE 2
.
Euthycaelus norae
sp. nov.
A–C. Male palpal bulb, prolateral (A), retrolateral (B), and dorsal (C) views. D. Male, leg I, tibial apophysis, ventro-prolateral view. E, F. Male palpal tibia, ventral (E) and retrolateral (F) views. G, H. Female spermathecae, ventral (G) and dorsal views (H). Scale = 1mm.
Female (
MZSP
28442
). Total length:
35.2
. Carapace: length
12.6
; width
10.5
. Eye tubercle: length
1.8
; width
2.5
. Labium: length
1.7
; width
2.6
. Sternum: length
5.6
; width
5.5
. Basal segment of chelicerae with
10-12
teeth. Labium subquadrate, with more than
200
cuspules. Maxillae each with more than
150
cuspules. Thoracic fovea procurved. Spines: Palp: femur (d) 0-0-p
1
, tibia (v) ap
3
. Legs: I: femur (d) 0-0-p
1
, metatarsus (v)
1
-0-ap
2
; II: femur (d) 0-0-p
1
, tibia (v)
0-1
-0, metatarsus (v)
1
-0-ap
2
; III: patela (p)
1
, tibia (r)
0-1
-0, (v)
0-1
-ap
3
, (p)
1
-
1
-0, metatarsus (r)
0-1
-
1
, (v)
1-2
-ap
3
, (p)
1
-
1
-
1
; IV: tibia (v)
0-2
-ap
3
, (r)
1
-
0-1
, metatarsus (v)
1-2
-
2
-ap
3
, (r)
1
-
0-1
, (p)
1
-
1
-
1
. Spermathecae comprising two rounded and short receptacles, heavily sclerotized (
Figs
2
G, H). Metatarsal scopulae extent (ventral surfaces only): I–II, for entire length; III, for distal half; IV, for less than half. Tarsal scopulae (ventral surfaces only): I–II, entire; III–IV, divided by longitudinal band of thick setae. Paired tarsal claws with small teeth in one row.
TABLE 4
.
Euthycaelus norae
sp. nov.
, female (MZSP 28442), length of left palp and leg segments.
Palp |
Leg I |
Leg II |
Leg III |
Leg IV |
Femur |
7.1 |
9.9 |
8.5 |
7.5 |
10.4 |
Patella |
4.2 |
5.6 |
5.2 |
4.5 |
5.2 |
Tibia |
4.7 |
7.7 |
6.2 |
4.9 |
7.9 |
Metatarsus |
- |
6.5 |
5.7 |
6.6 |
10.4 |
Tarsus |
4.6 |
4.6 |
4 |
4 |
4.6 |
Total |
20.6 |
34.3 |
29.6 |
27.5 |
38.5 |
Additional material.
VENEZUELA
: TACHIRA: San Juan de Colón:
1
♀ (
MZSP
28441
),
1
♀ (
MZSP
28438
).
COLOMBIA
:
NORTE
DE
SANTANDER: Bochalema:
1
♀ (
MZSP
28433
); La Donjuana:
1
♀(
MZSP
28437
).