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

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.5762237
persistent identifier	https://treatment.plazi.org/id/03B4126E-E84D-FF8C-EE26-FE59FAFDFCD9
treatment provided by	Felipe (2021-12-06 12:30:43, last updated 2024-12-04 22:10:30)
scientific name	Idiops germaini Simon, 1892
status

Treatment

Idiops germaini Simon, 1892 View in CoL

Figs 3D View Fig , 5B View Fig , 18–19 View Fig View Fig

Idiops germaini Simon, 1892: 92 View in CoL .

Idiops germaini View in CoL – 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 View Fig , 19D View Fig ), and by having the tibial apophysis reduced to two long spines inserted on a low tubercle ( Figs 18G–I View Fig , 19C View Fig ). Females with spermathecae composed of short ducts and fully sclerotized receptacles, almost twice the diameter of the duct ( Fig. 18L View Fig ).

Type material

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

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

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 GoogleMaps • 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 GoogleMaps • 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 GoogleMaps • 1 ♀; Mata da Tijuca ; 13 Aug.1977; M. Júlio leg.; UFPB Ar418 .

Description

Male (holotype MNHN 417)

HABITUS. See Fig. 18A View Fig .

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 View Fig ), gray abdomen.

PROSOMA. Carapace and ocular arrangement as shown in Fig. 18A View Fig . 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 View Fig ). Labium and sternum without cuspules ( Fig. 18B View Fig ). 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 View Fig ), with distal rastellum with 10 spines, with same size ( Fig. 19B View Fig ).

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

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

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 View Fig .

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 View Fig ), gray abdomen.

PROSOMA. Carapace and ocular arrangement as shown in Fig. 18J View Fig . 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 View Fig ). Labium with 2 cuspules ( Fig. 18K View Fig ). Maxilla with 28 cuspules, with larger cuspules concentrated in anterior prolateral and retrolateral extremities ( Fig. 18K View Fig ). 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 View Fig ).

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 View Fig ).

Distribution

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

References

Fukami C. Y. & Lucas S. M. 2005. Notas sobre especies de Idiops Perty, 1833 do sudeste Brasileiro com descricao de I. pirassununguensis sp. nov. (Mygalomorphae, Idiopidae, Idiopinae). Biota Neotropica 5 (18051 a): 1 - 7. https: // doi. org / 10.1590 / S 1676 - 06032005000200016

Mello-Leitao C. F. 1923. Theraphosideas do Brasil. Revista do Museu Paulista 13: 1 - 438. Mello-Leitao C. F. 1930. Aranhas do Cumina. Arquivos do Museu Nacional do Rio de Janeiro 32: 51 - 75.

Simon E. 1892. Histoire naturelle des Araignees. Deuxieme edition, Tome premier, No 1. Roret, Paris. https: // doi. org / 10.5962 / bhl. title. 51973

Figures

Fig. 3. Distribution of species of Idiops Perty, 1833 in the Neotropical region (part).

Fig. 5. Chelicera teeth arrangement. A. Smaller retrolateral teeth arranged in rows (I. camelus (Mello- Leitão, 1937)). B. Smaller retrolateral teeth arranged randomly (I. germaini Simon, 1892). C. Smaller retrolateral teeth absent (I. harti (Pocock, 1893)). Scale bars = 1 mm.

Fig. 18. Idiops germaini Simon, 1892. A–I. ♂ (MRNJ). A. Prosoma (dorsal view). B. Prosoma (ventral view). C. Part of palp (retrolateral view). D–F. Palpal bulb. D. Dorsal view. E. Retrolateral view. F. Prolateral view. G. Tibia, metatarsus and tarsus I (prolateral view). H. Tibial apophysis (prolateral view). I. Tibial apophysis and metatarsus I (dorsal view). J–L. ♀, (CAD 832). J. Prosoma (dorsal view). K. Prosoma (ventral view). L. Genitalia (dorsal view). Scale bars = 1 mm.

Fig. 19. Scanning electron micrographs of Idiops germaini Simon, 1892, ♂ (MNRJ). A. Chelicera (retrolateral view). B. Rastellum (retrolateral view). C. Tibial apophysis (dorsal view). D. Part of the palp, showing retrolateral depression. E–F. Detail of the final portion of the embolus. E. Retrolateral view. F. Prolateral view. Abbreviation: DET = distal embolar tooth. Scale bars = 0.5 mm.