Idiops rohdei Karsch, 1886

Fonseca-Ferreira, Rafael, Guadanucci, José Paulo Leite, Yamamoto, Flávio Uemori & Brescovit, Antonio Domingos, 2021, Taxonomic revision of the Neotropical spiders of the genus Idiops Perty, 1833 (Araneae, Idiopidae), with description of four new species, European Journal of Taxonomy 780 (1), pp. 1-71 : 58-60

publication ID

https://doi.org/ 10.5852/ejt.2021.780.1581

publication LSID

lsid:zoobank.org:pub:932663A6-D83D-49E0-B1F7-87F7DA8DC086

DOI

https://doi.org/10.5281/zenodo.5762278

persistent identifier

https://treatment.plazi.org/id/03B4126E-E854-FF94-EE35-FDA9FD5DF9EC

treatment provided by

Felipe

scientific name

Idiops rohdei Karsch, 1886
status

 

Idiops rohdei Karsch, 1886 View in CoL

Figs 3C View Fig , 31 View Fig

Idiops rohdei Karsch, 1886: 93 View in CoL .

Diagnosis

The male of Idiops rohdei differs from that of other Neotropical species by the rectangular shape in dorsal view of the apical branch of the tibial apophysis ( Fig. 31H View Fig ) and by the short metatarsus I with a projection on the apical half ( Fig. 31I View Fig ). The female differs in having the spermathecae with ducts slightly curved outward in the median portion and elongated bean-shaped receptacles ( Fig. 31J–K View Fig ).

Type material

Holotype PARAGUAY • ♀; R. Rohde leg.; ZMB 6230 View Materials .

Other material examined

PARAGUAY • 1 ♂; Departamento Amambay, 33 km SW of Pedro Juan Caballero, Parque Nacional Cerro Corá , camping area; 22°38′04.6″ S, 56°01′33.8″ W; 22 Oct. 2019; A. Pérez-González, A. Ojanguren, D.J. Guerrero and J. Kochalka leg.; IBNP-2444 GoogleMaps .

Remark: The description of Idiops rohdei was based on a female specimen from Paraguay, without any further details about its locality. We had access to a male specimen from Parque Nacional Cerro Corá, mid-eastern Paraguay. The female holotype and the male specimen share the overall body coloration, especially close to the eye tubercle, which is dark brown. We decided to consider them as cospecifics, pending the availability of more specimens from Paraguay or nearby regions to support our decision.

Description

Male (IBNP-2444)

HABITUS. See Fig. 31A View Fig .

MEASUREMENTS. TBL 6.3, CL 3.3, CW 3.1, LL 0.5, LW 0.6, SL 1.8, SW 1.7.

COLOR. Carapace and legs reddish brown, with dark brown ocular tubercle, yellowish coxae, brownish sternum ( Fig. 31A–B View Fig ), abdomen dorsally dark gray and ventrally brownish.

PROSOMA. Carapace and ocular arrangement as shown in Fig. 31A View Fig . Eye tubercle: 0.6 long; 0.8 wide. Distance AME-ALE 0.5. Eye diameters:AME 0.3,ALE 0.3, PME 0.1, PLE 0.2. Thoracic fovea procurved ( Fig. 31A View Fig ). Labium and sternum without cuspules ( Fig. 31B View Fig ). Basal segment of chelicerae with a prolateral row of 4 larger teeth, and a small, retrolateral row with 2 small teeth, grouped in basal half, rastellum with 3 spines ( Fig. 31B View Fig ).

LEGS. Tibia, metatarsus and tarsus I as shown in Fig. 31G View Fig . Pseudoscopula: tarsus II–IV fully covered.

PALP. Tibia with spines distributed along margin of retrolateral depression, with larger spines on basal and apical portions ( Fig. 31C View Fig ), embolus with a keel in dorsal and retrolateral view, embolus strongly curved dorsally with abrupt reduction in thickness in its apical half, incomplete torsion at spermatic duct opening ( Fig. 31D–F View Fig ).

PALP AND LEG MEASUREMENTS. Palp = 2.8 (1, 0.5, 0.9, 0.4), I = 4.2 (1.4, 0.7, 1, 0.8, 0.3), II = 3.5 (1, 0.6, 1, 0.6, 0.3), III = 4.1 (1.5, 0.6, 0.7, 0.8, 0.5), IV = 4.4 (1, 0.7, 1.2, 1, 0.5).

SPINATION. Palp: Ti r25. Leg I: Fe d1-2-2, Pa v0-0-1, Ti v1-1-2, p0-0-1, r2-2-2, Mt v1-1-1, p0-0-1, r2- 2-2, Ta v3-6-5, p0-1-1, r2-2-1. Leg II: Pa v0-0-2, Ti v2-1-3, r1-2-2, Mt v4-3-4, p0-0-3, r-2-2, Ta p0-1-1, r2-1-1. Leg III: Pa p0-0-3, Ti v0-2-2, Mt v0-1-3, p0-0-1, Ta r1-0-1. Leg IV: Pa p0-0-6, Ti p0-0-2, Mt v0-2-4, Ta p1-1-2.

Female (holotype ZMB 6230)

MEASUREMENTS. TBL 13.9, CL 6.8, CW 5.8, LL 1, LW 1.4, SL 4.2, SW 3.7.

COLOR. Carapace and legs red brown. Eye tubercle dark brown. Sternum brown.

PROSOMA. Eye tubercle: 1.7 long; 1.5 wide. AME-ALE distance 1. Eye diameters: AME 0.4, ALE 0.3, PME 0.3, PLE 0.4. Thoracic fovea procurved. Labium with 5 cuspules. Maxilla with 58 cuspules, distributed throughout anterior ventral half. Basal segment of chelicerae with a prolateral row of 6 large teeth and 11 small retrolateral teeth, grouped in median area.

PALP AND LEG MEASUREMENTS. Palp = 11.2 (3.7, 2.3, 2.6, 2.6), I = 13.1 (4.4, 2.9, 2.8, 2, 1), II = 11.7 (4, 2.7, 2.2, 1.8, 1), III = 12.6 (3.8, 2.7, 1.8, 2.6, 1.7), IV = 17.3 (4.9, 3.3, 3.7, 3.4, 2).

SPINATION. Palp: Fe p0-0-2, Pa p0-1-0, Ti p7-7-12, r6-11-12, Ta v6-11-12. Leg. I: Ti p6-5-8, r4-7-15, Mt p10-7-7, r11-8-7, Ta v0-0-7, p4-4-4, r4-4-0. Leg II: Ti p3-4-7, r1-2-4, Mt p13-7-9, r5-5-5, Ta v0-0-6, p5- 5-3, r5-3-0. Leg III: Pa p6-5-12, r0-0-3, Ti v0-0-2, p0-4-8, r0-3-3, Mt v2-2-3, p10-4-3, r5-2-1, Ta v4-8-9. Leg IV: Pa p39-0-0, Ti v1-1-1, Mt v1-1-7, r0-0-1, Ta v4-6-11.

SPERMATHECAE. Bean-shaped receptacula with conspicuous granules, long, translucent ducts ( Fig. 31J–K View Fig ).

Distribution

Paraguay. Departamento Amambay ( Fig. 3C View Fig ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Idiopidae

Genus

Idiops

Loc

Idiops rohdei Karsch, 1886

Fonseca-Ferreira, Rafael, Guadanucci, José Paulo Leite, Yamamoto, Flávio Uemori & Brescovit, Antonio Domingos 2021
2021
Loc

Idiops rohdei

Karsch F. 1886: 93
1886
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