New additions to the Brazilian fauna of the genus Scytodes Latreille (Araneae: Scytodidae) with emphasis on the Atlantic Forest species
Author
Rheims, Cristina A.
Author
Brescovit, Antonio D.
text
Zootaxa
2009
2116
1
45
journal article
10.5281/zenodo.187984
b29a7c01-615c-4ceb-b500-20f3eed6f2bd
1175-5326
187984
Scytodes saaristoi
new species
Figs. 10–15
Type
material:
Holotype
:
male from Estação Ecológica de Murici, Murici [
09°15' S
;
35°51' W
], Alagoas,
Brazil
,
13–22 September 2003
, Equipe Biota, deposited in
IBSP
92628.
Paratypes
:
BRAZIL
:
Alagoas
:
Murici [
09°15' S
;
35°51' W
], Estação Ecológica de Murici, 33 1Ƥ,
13–22 September 2003
, Equipe Biota (
IBSP
92629–92631).
Etymology
. The specific name honours Dr. Michael Saaristo, from the Museum of Zoology and University of Turku, Turku,
Finland
, for his contributions to spider biodiversity and taxonomy.
Diagnosis
.
Scytodes saaristoi
n.sp.
resembles species of the "
globula
group" (
Rheims & Brescovit 2001b
) by the conformation of the male palp and female epigynum. The males resemble those of
S. eleonorae
Rheims & Brescovit
by the long sclerotized process (
Rheims & Brescovit, 2001b
, figs. 2c–d) but are distinguished by the short and rounded hyaline membrane (
Figs. 11–12
). Females are distinguished from the remaining species of the group by the small, projected positioning ridges set very close together (
Fig. 14
).
Description
. Male (
Holotype
, IBSP 92628) Carapace orange with brown pattern as shown on
Fig. 10
. Chelicerae slightly lighter than carapace, with dorsal, longitudinal, brown stripe. Labium gray. Endites pale yellow with brown retrolateral margins. Sternum pale yellow with brown markings in front of each coxae. Legs and pedipalps orange with irregular, transversal brown bands. Abdomen gray with black pattern (
Fig. 10
). Total length 4.1. Carapace slightly domed, 1.8 long, 1.5 wide. Eye diameters: PME 0.14, ALE 0.16, PLE 0.14. Lateral eyes on a tubercle. Chelicerae with subapical hyaline keel and inconspicuous stridulatory ridges. Labium 0.22 long, 0.24 wide. Sternum 1.2 long, 0.8 wide. Leg measurements: I: femur 6.6, patella 0.6, tibia 6.5, metatarsus 8.2, tarsus 1.2, total 22.9; II: 4.8, 0.5, 4.3, 5.5, 0.9, 16.0; III: 3.0, 0.5, 2.7, 3.2, 0.8, 10.2; IV: 4.5, 0.5, 4.2, 4.9, 0.9, 15.0. Palpal femur with stridulatory pick short and stout with triangular, projected socket. Cymbium with pair of strong distal spines. Bulb 0.72 long and slender. Distal region with distal hyaline membrane, subdistal, slightly more sclerotized, concave keel, and very long, retrolateral sclerotized process (
Figs. 11–13
). Abdomen 2.3 long, 1.4 wide, covered with slender hairs.
Female (
Paratype
, IBSP 92630). Coloration pattern as in male. Total length 5.0. Carapace domed, 2.1 long, 1.8 wide. Eye diameters: PME 0.14, ALE 0.16, PLE 0.14. Lateral eyes on a tubercle. Chelicerae as in male. Labium 0.28 long, 0.30 wide. Sternum 1.0 long, 0.9 wide. Leg measurements: I: femur 4.3, patella 0.5, tibia 4.4, metatarsus 4.9, tarsus 1.0, total 15.1; II: 3.4, 0.5, 3.1, 3.6, 0.9, 11.5; III: 2.5, 0.5, 2.1, 2.4, 0.8, 8.3; IV: 3.5, 0.5, 3.3, 3.4, 0.9, 11.6. Palpal femur as in male. Epigynum with small and projected positioning ridges, set very close together (
Fig. 14
). Vulva with small, round spermathecae on very long stalks, anterior to laterally sinuous hyaline pockets with long, lateral sclerotized area (
Fig. 15
). Abdomen 2.9 long, 1.8 wide, as in male.
Variation
. Four males: total length 3.7–4.1; carapace 1.8–1.9; femur I 6.2–7.7; bulb 0.64–0.72.
Distribution
. Atlantic Forest. Only known from the
type
locality, in the northeastern state of Alagoas.