Idiops mocambo Fonseca-Ferreira, Guadanucci & Brescovit, 2021

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 : 41-43

Idiops mocambo Fonseca-Ferreira, Guadanucci & Brescovit sp. nov.

urn:lsid:zoobank.org:act:9A7CB56E-31BD-4122-81D0-D514069399D6

Figs 3B , 23A–I

Diagnosis

The male of Idiops mocambo sp. nov. differs from other Neotropical species by anterior region of the carapace in a pointed shape ( Fig. 23A ), sternum with distinct black edges ( Fig. 23B ) and by the apical branch of the tibial apophysis in rectangular shape ( Fig. 23G–H ).

Etymology

The specific epithet refers to the location where the holotype specimen was collected.

Type material

Holotype BRAZIL – Pará • ♂; Belém, Mocambo ; 1°27′21″ S, 48°30′14″ W; 4 Nov. 2002; A.B. Bonaldo leg.; MPEG 0110 .

Paratype BRAZIL – Amazonas • 1 ♂; Manaus, Reserva Florestal Adolpho Ducke ; 3°0′27″ S, 59°56′22.92″ W; 9 Sep. 1991; H. Höfer and T. Gasnier leg.; INPA 4593 .

Other material examined

BRAZIL – Amazonas • 1 ♂; Road Am-010 , Km 54; 3°3′45″ S, 59°59′19″ W; 6–10 Nov. 1997; J. Vidal et al. leg.; INPA 4594 . – Pará • 1 ♂; Barcarena ; 1°30′21″ S, 48°37′33″ W; MPEG 1106 .

Description

Male (holotype MPEG 0110)

HABITUS. See Fig. 23A .

MEASUREMENTS. TBL 7.9, CL 3.8, CW 3, LL 0.5, LW 0.7, SL 1.9, SW 1.7.

COLOR. Brown carapace and legs, except for coxae and trochanters, which are light brown ( Fig. 23A–B ).

PROSOMA. Carapace and ocular arrangement as shown in Fig. 23A . Eye tubercle: 0.5 long; 0.9 wide. AME-ALE distance 0.5. Eye diameters: AME 0.2, ALE 0.3, PME 0.2, PLE 0.2. Thoracic fovea procurved ( Fig. 23A ). Labium and sternum without cuspules ( Fig. 23B ). Basal segment of chelicerae with a prolateral row of 5 large teeth and 2 small retrolateral teeth, grouped on basal half, rastellum with 16–18 short and thick spines.

LEGS. Tibia, metatarsus and tarsus I as shown in Fig. 23G . Leg I with double tibial apophysis, apical branch twice the size of basal branch ( Fig. 23G–I ). Pseudoscopula: tarsus I–IV totally covered.

PALP. Tibia with spines distributed along margin of retrolateral depression, with large spines at apical and basal ends ( Fig. 23C ); embolus with lamelliform apical half, keel in retrolateral view and torsion close to sperm duct opening ( Fig. 23D–F ).

PALP AND LEG MEASUREMENTS. Palp = 7.1 (2.5, 1, 2.6, 1), I = 11.7 (3.4, 1.9, 2.6, 2.6, 1.2), II = 10.3 (2.8, 1.5, 2.3, 2.5, 1.2), III = 9.8 (2.6, 1.4, 1.9, 2.6, 1.3), IV = 12.6 (3.2, 1.8, 3, 3.2, 1.4).

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

Distribution

Brazil. Distributed in phytophysiognomies in the Amazon, with records for the North region (eastern Amazonas and Pará) ( Fig. 3B ).

Figures

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

Fig. 23. Idiops mocambo Fonseca-Ferreira, Guadanucci & Brescovit sp. nov., ♂, holotype (MPEG 0110). 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). Abbreviation: K = keel. Abbreviation: K = keel. Scale bars: A–G, I = 1 mm; H = 0.5 mm.