Idiops germaini Simon, 1892

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 : 33-36

Idiops germaini Simon, 1892

Figs 3D, 5B, 18–19

Idiops germaini Simon, 1892: 92 .

Idiops germaini – Mello-Leitão 1923: 47. — Fukami & Lucas 2005: 6, figs 8–10.

Diagnosis

Males of Idiops germaini differ from those of other Neotropical species of Idiops by the long and slender palpal tibia, with the retrolateral depression restricted to the apical portion ( Figs 18C, 19D), and by having the tibial apophysis reduced to two long spines inserted on a low tubercle ( Figs 18G–I, 19C). Females with spermathecae composed of short ducts and fully sclerotized receptacles, almost twice the diameter of the duct ( Fig. 18L).

Type material

Holotype BRAZIL – Rio de Janeiro • ♂; Rio de Janeiro ; P. Germain leg.; MNHN 417 .

Paratype BRAZIL – Rio de Janeiro • 1 ♀; same collection data as for holotype; MNHN 9977 .

Other material examined

BRAZIL – Rio de Janeiro • 1 ♂ ( SEM); Nova Iguaçu, Parque Municipal de Nova Iguaçu ; 22°45′35′′ S, 43°27′6′′ W; 20 May 2004; R.L.C. Baptista leg.; MNRJ • 1 ♂; Nova Iguaçu, Parque Municipal de Nova Iguaçu ; 20 Jun. 2004; R.L.C. Baptista leg.; MNRJ • 1 ♂; Nova Iguaçu, Parque Municipal de Nova Iguaçu ; Jan. 2001; R.L.C. Baptista leg.; MNRJ • 1 ♀; Nova Iguaçu, Parque Municipal de Nova Iguaçu ; 22 Jan. 2005; D.R. Pedroso leg.; MNRJ • 1 ♀; Paraty, Parque Nacional da Serra da Bocaina, Trilha da Cachoeira Sete Quedas ; 23°2′30″ S, 44°39′42″ W; 24–26 Mar. 2019; R.F. Ferreira, A. Galleti, I. Meirelles and R. Indicatti leg.; CAD 832 • 1 ♀; Angra dos Reis, Distrito de Serra DʼAgua ; 23°0′25″ S, 44°19′4″ W; 25 Nov. 2010; C.A.S. Souza et al. leg.; CHNUFPI 0040 • 1 ♀; Mata da Tijuca ; 13 Aug.1977; M. Júlio leg.; UFPB Ar418 .

Description

Male ( holotype MNHN 417)

HABITUS. See Fig. 18A.

MEASUREMENTS. TBL 12, CL 6.8, CW 6.1, LL 0.8, LW 1.1, SL 3.8, SW 3.3.

COLOR. Brown carapace and legs, brownish sternum and coxae ( Fig. 18A–B), gray abdomen.

PROSOMA. Carapace and ocular arrangement as shown in Fig. 18A. Eye tubercle: 1.4 long; 1.4 wide. Distance AME-ALE 0.6. Eye diameters:AME 0.4,ALE 0.3, PME 0.2, PLE 0.4. Thoracic fovea procurved ( Fig. 18A). Labium and sternum without cuspules ( Fig. 18B). Basal segment of chelicerae with a prolateral row of 8 teeth, seven larger and one small, and a retrolateral row with 9 small teeth, grouped in basal half ( Fig. 19A), with distal rastellum with 10 spines, with same size ( Fig. 19B).

LEGS. Tibia, metatarsus and tarsus I as shown in Fig. 18G.

PALP. Tibia with a shallow retrolateral depression and spines concentrated at basal half of depression ( Figs 18C, 19D); elongated embolus with median curvature ( Fig. 18E–F) and a small distal embolar tooth close to sperm duct opening ( Fig. 19E–F).

PALP AND LEG MEASUREMENTS. Palp = 12 (4.4, 2, 4.2, 1.4), I = 22.9 (7.2, 3.4, 5.4, 4.8, 2.1), II = 19.9 (6.4, 2.9, 4.4, 4.4, 1.8), III = 17.2 (4.6, 2.6, 3.3, 4.7, 2), IV = 24 (6.7, 3.4, 5.6, 5.9, 2.4).

SPINATION. Palp: Ti r3-4, Ta d0-0-4. Leg I: Fe d1-2-2, Ti p0-0-1, r0-2-2, Mt p0-0-2, r2-2-4, Ta p1-1-1, r2-1-2. Leg II: Fe d1-2-2, Ti v1-1-3ap, Mt p0-1-2, r2-2-2, Ta p0-1-1, r2-2-4. Leg III: Fe d1-1-1, Pa p2-5- 6, r0-0-3, Ti v1-2-2, p1-2-4, r0-1-2, Mt vv2-1-4ap, p3-2-2, r2-1- 1, Ta p2-3-3, r1-2-3. Leg IV: Fe d1-1-2, Pa p13-3-0, Ti v1-1-3, Mt v1-1-1-3, Ta p2- 2-4, r0-0-2.

Female ( paratype MNHN 9977)

HABITUS. See Fig. 18J.

MEASUREMENTS. TBL 16.6, CL 9.1, CW 6.7, LL 1.5, LW 1, SL 4.8, SW 4.

COLOR. Brown carapace and legs, brownish sternum and coxae ( Fig. 18J–K), gray abdomen.

PROSOMA. Carapace and ocular arrangement as shown in Fig. 18J. Eye tubercle: 2.3 long; 2.8 wide. Distance AME-ALE 0.9. Eye diameters:AME 0.3, ALE 0.5, PME 0.3, PLE 0.5. Thoracic fovea procurved ( Fig. 18J). Labium with 2 cuspules ( Fig. 18K). Maxilla with 28 cuspules, with larger cuspules concentrated in anterior prolateral and retrolateral extremities ( Fig. 18K). Basal segment of chelicerae with a prolateral

row of 6 large teeth and a retrolateral row with 13 small teeth, grouped in basal half, rastellum with 14 spines, distal ones longer ( Fig. 18K).

PALP AND LEG MEASUREMENTS. Palp = 11.9 (4, 2.6, 2.6, 2.7), I = 13.3 (4.5, 2.9, 2.7, 2.2, 1), II = 11.8 (3.8, 2.7, 2.2, 2, 1), III = 12.9 (3.5, 2.9, 1.9, 2.6, 2), IV = 17.6 (4.8, 3.5, 3.7, 3.5, 2.1).

SPINATION. Palp: Pa p0-0-1, Ti p4-9-11, r4-7-13, Ta v0-0-6, p14-9-8, r11-11-10. Leg I: Ti p3-8-11, r3-7- 15, Mt p11-8-6, r11-7-9, Ta v0-0-6, p5-4-2, r6-5-0. Leg II: Ti p1-3-6, r0-1-1, Mt p10-10-10, r5-4-2, Ta v0-0-4, p5-5-4, r3-2-0. Leg III: Pa p3-5-7, r0-0-2, Ti p4-4-4, r0-3-4, Mt v1p-0-0-2, p5-0-3, r5-1-1, Ta v0-2 -7. Leg IV: Pa p30-5-0, Ti v0-1-2, Mt v1-1-1-3ap, Ta v0-2-6.

SPERMATHECAE. Ducts with translucent basal half and sclerotized apical half and spherical receptacula ( Fig. 18L).

Distribution

Brazil. Found in Atlantic Forest phytophysiognomies, with records for the state of Rio de Janeiro ( Fig. 3D).