Five new species of Protimesius from Brazil (Opiliones: Stygnidae)
Author
Villarreal-Manzanilla, Osvaldo
Author
Pinto-Da-Rocha, Ricardo
text
Zootaxa
2006
1325
219
233
journal article
50317
10.5281/zenodo.174062
7b38f994-4c11-4721-bd11-ee857873cfdf
11755326
174062
Protimesius foliadereis
n. sp.
Figs 1–7
,
36–37
Typematerial
: Male
holotype
(MZSP17753),
Brazil
, Mato Grosso, Juruena (Amazonian Rain Forest,
12°51´S
,
58°56´W
),
7.–18.VI.1997
, G. Skuk leg.
Diagnosis
: The new species is similar to
P. evelianeae
(Soares & Soares, 1978)
by the presence of a dorsal row of acute tubercles on male patella IV to basal third of tibia IV. It differs from
P. evelianeae
by the presence of a prolateral row of acute tubercles on distal half of male tibia IV and by the absence of a wide eminence on anterior margin of dorsal scute.
Etymology
: “Folia de Reis” is a popular Brazilian religious festival in which people go from home to home, chanting and playing instruments, held between Christmas and
January 6th
. The singers perform religious themes about the birth of Jesus, and they are dressed with coloredstriped clothes adorned with small pieces of mirror. The specific epithet is a noun in apposition.
Description of male
(
holotype
):
Measurements: Dorsal scute length 4.4; prosoma length 2.0; dorsal scute width 3.8; prosoma width 3.6; interocular distance 2.6; chelicera: II 5.1; III 2.2; pedipalpus 16.5; leg I 21.0; II 38.5; III 28.5; IV 36.5.
Dorsum (
Figs 1–2
): Prosoma with low anterior eminence carrying 9 small tubercles. Ocularium smooth. Lateral margin with tubercles from eyes to groove II. Area III with 2 parallel spines.
Venter: Coxa I with 1 median row of 5 tubercles, 2 apical; II with 1 median row of 6 tubercles; III and IV irregularly minutely tuberculated. Free sternites I–III with a row of minute granules. Anal plate irregularly minutely granular.
Chelicera: Swollen. Segment I smooth; II with finger carrying 1 wide lamina and 2 small teeth; III with 3 subapical teeth (basal one widest).
Pedipalpus (
Figs 3–4
): Coxa with large dorsoanterior apophysis and 1 basal posterior tubercle. Trochanter with 1 ventral tubercle. Femur with 1 ventrobasal tubercle. Tibia mesal IIiIi (2=4>1>3=5), ectal IIiIi (4>1>2>5>3). Tarsus mesal IiIiii (1=3>5>2>4>6), ectal Iiiii (1>4;2=5).
FIGURES 1–7.
Protimesius foliadereis
,
sp. nov
, male holotype. 1 Dorsal view of body. 2 Lateral view of body. 3–4 Right palpus (3 ectal, 4 mesal view). 5–7 Proximal segments of leg IV (5 dorsal, 6 ventral and 7 lateral view of patella and tibia). Scale bars: 1 mm.
Legs (
Figs 5–7
): Coxa I with 2 anterior and 1 posterior tubercles; II with 2 posterior tubercles (1 fused with another of coxa III); III with 1 tubercle fused with other of coxa IV; IV minutely tuberculated. Trochantera I and II with 3 ventral tubercles; III and IV with 2 ventral tubercles. Femur IV with prolateroapical row of 5 tubercles; retrolateral row of 15 tubercles on distal third. Patella IV with dorsal row of 8 tubercles increasing in size apicad, 1 large ventroapical tubercle. Tibia IV with 1 row of tubercles from ventral to mesal (increasing in size apicad); 1 prolateral row on distal 2/3, increasing in size apicad (apical tubercle trifid); 7 dorsobasal tubercles. Tarsal segmentation: 8, 19, 7, 8.
Penis (
Figs 36–37
): Ventral plate with lateral and distal margin almost straight, 3 curved distal setae, no intermediary pair, 4 basal pairs of straight setae; with dorsal process; stylus swollen apically.
Color: Mostly brown, with minute dark brown spots all over body and legs. Chelicerae (fingers darker) and tibia IV reddish brown.
Female unknown.