Thaumatocranaus splendidus Hara, Bragagnolo & Pinto-Da-Rocha, 2017, sp. nov.
Creators: name: Hara, Marcos R.
name: Bragagnolo, Cibele
name: Pinto-Da-Rocha, Ricardo
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Opiliones
Cranaidae
Thaumatocranaus
Thaumatocranaus splendidus

description: Thaumatocranaus splendidus sp. nov.
(Figs 5, 6, 7 F, G)
Type material. COLOMBIA. Amazonas: Leticia (km 9 v. a a Taparacam, 84 m), 30.v.1992, G. Aurat leg., male holotype (ICN AO 362).
Diagnosis. Thaumatocranaus splendidus sp. nov. resembles T. magnificus sp. nov. because of the median longitudinal groove of scutal area I inconspicuous, lateral margin of dorsal scutum with an external row of tubercles increasing in size posteriorly, becoming large, conical and slightly acuminated, and the robust, unbranched apophysis on free tergite III. It can be distinguished from T. magnificus sp. nov. by the femur III with a retroventral conical, acuminated, enlarged subapical apophysis and femur IV with retrodorsal apical spine strongly curved retrolaterally.
Etymology. From the Latin splendeo plus idus, meaning splendid, in reference to the coloration pattern of the dorsal scutum and the remarkable retroventral subapical apophysis on femur III.
Description. Male (holotype): Dorsum (Fig. 5 A–E): Measurements: DSL 3.45; DSW 3.40; LI 8.65; LII 16.10; LIII 11.35; LIV 15.10. Carapace and scutal areas I–III with tubercles sparsely distributed. Median longitudinal groove of scutal area I inconspicuous. Lateral margin of dorsal scutum with an external row of tubercles increasing in size posteriorly, becoming large, conical and slightly acuminated. Free tergite III with a robust, unbranched apophysis.
Venter: Coxae I–IV tuberculate; coxae I–II with median and apical enlarged tubercles; coxa III with apical enlarged tubercles.
Chelicerae (Fig. 5 A): Segment I with few dorsal tubercles on basal half of bulla; movable finger with 8–9 teeth; fixed finger with 7 teeth.
Pedipalps (Fig. 5 F, G): Trochanter dorsal face with 1 tubercle; ventral face with1 pair of enlarged setiferous tubercles (prolateral largest). Femur dorsal face smooth, with 2–3 ventral tubercles. Patella–tarsus with few dorsolateral scattered setiferous tubercles. Tibial setation: prolateral II, retrolateral I. Tarsal setation: prolateral iiiI, IIi, retrolateral iII, IIi placed on distal half.
Legs (Fig. 6): Coxa IV with 1 prolateral and 1 retrolateral, conical, apical apophyses, retrolateral one shortest and curved retroventrally. Trochanters I–IV with retrolateral slightly enlarged tubercles and 1 basoventral median enlarged tubercle. Trochanter IV with 1 prodorsal, enlarged, blunt subapical tubercle; retrolateral face with 1 median enlarged tubercle, and 1 apical, acuminated enlarged tubercle. Femora I–II dorsal face unarmed; ventral face with 2 rows of tubercles; ventroapical face unarmed. Femur III with 1 pair of dorsoapical spines (retrolateral largest); ventral face with 2 rows of tubercles, retrolateral one with 1–2 median slightly enlarged tubercles and 1 subapical, conical, acuminated, enlarged apophysis; ventroapical face unarmed. Femur IV slightly curved inwards (in dorsal view), with 1 pair of dorsoapical spines (retrolateral largest and curved retroventrally); ventral face with 2 rows of tubercles; ventroapical face unarmed. Patellae I–III unarmed; patella IV with 1 retrodorsal enlarged apical tubercle and 1 retroventral, acuminated, enlarged median tubercle. Tibiae I–III unarmed. Tibia IV dorso- and ventroapical faces unarmed; ventral face with 2 rows of tubercles, retrolateral one with 5 acuminated, large tubercles, far from each other. Metatarsi I, IV and tarsi III–IV normally built (not inflated); metatarsus IV almost straight. Tarsal segmentation: 6(3), 10(3), 7, 7.
Penis (Fig. 7 F, G): Glans stylus sub cylindrical, subapically dorsally curved, with ventral subapical trichomes. Ventral plate with 3 pairs of long MS C (distal most pair longest and strongly curved inwards), 1 pair of MS D, 1– 2 MS E, 1 pair of MS A and 2 pairs of MS B.
Coloration: Oval, large depigmented (pale beige) pair of spots on scutal areas I–II and around the pair of spines on scutal area III. Body, subapical regions of trochanters I–III, most of trochanter IV (except for apical region), apexes of femora–tibiae I–IV, and basal to median regions of metatarsi I–IV dark brown; chelicerae, pedipalps and remaining parts of the body brown.
Female: Unknown.
Type locality. Colombia, Amazonas, Leticia.
Geographical distribution. Known only from the type locality.
description: Published as part of Hara, Marcos R., Bragagnolo, Cibele & Pinto-Da-Rocha, Ricardo, 2017, Revision of Thaumatocranaus Roewer, 1932, with description of two new species (Opiliones: Laniatores: Gonyleptoidea), pp. 457-472 in Zootaxa 4254 (4) on pages 466-470, DOI: 10.11646/zootaxa.4254.4.3, http://zenodo.org/record/556045