Indiani Rodrigues & Cizauskas & Lemos 2020, gen. nov.
Creators: name: Rodrigues, Bruno V. B.
name: Cizauskas, Igor
name: Lemos, Yuji
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Gnaphosidae
Indiani

description: Indiani gen. nov.
Etymology. The generic name is in honor of the two Brazilian arachnologists, R. P. Indicati and D. F. Candiani, and is a contraction of both names.
Type species. Indiani gaspar sp. nov.
Diagnosis. Indiani gen.nov. resemble those of Brasilomma and Chileomma Platnick, Shadab & Sorkin, 2005 by having two ventral parallel rows of strong spines on tibia and metatarsus I–II (Fig. 1C), but are distinguished by the male palp with conductor sclerotized and median apophysis robust and sclerotized, curved retrolaterally (Figs 3 A–D); females are distinguished by the atrium in anterior position and a posterior extension of the epigynal plate, extending beyond the epigastric furrow (Figs 3E, F).
Description. Spiders with carapace and legs pale yellow, and abdomen weakly pigmented (Figs 1A, B). Carapace longer than wide, narrower at cephalic region. Fovea present as a narrow dark longitudinal line on posterior half of carapace (Fig. 1A). Males eyeless and female with only the ALE (Fig. 1E). Chilum present (Fig. 1E). Chelicerae relatively long (0.25–0.26) with a convex boss (Fig. 1E); promargin with 4 small teeth and retromargin with 6 teeth. Endites slightly convergent anteriorly (Fig. 1D); serrula present in single row; labium longer than wide (Fig. 1D). Sternum anteriorly straight, longer than wide, rebordered anteriorly and laterally; posterior region strongly protruding between coxae IV, with numerous long and erect setae (Fig. 1D); precoxal triangles absent. Pedicel with ventral sclerite triangular. Leg formula 4123. Two ventral parallel rows of strong spines on tibia and metatarsus I–II (Fig. 1C). Only tarsus I–II with scopulae of tenent setae. Trichobothria present on dorsum of tibia, metatarsi and tarsi, arranged in two rows on tarsi (Figs 2A, D); bothrium with 3 deep ridges (Fig. 2D). Tarsal organ capsulate with oval opening, located dorsally on tarsi (Fig. 2D). Two pectinate tarsal claws (Fig. 2B); claw tufts composed of slightly widened tenent setae (Fig. 2B); claws with classic claw tuft clasper (Fig. 2C). Abdomen oval, longer than wide (Figs 1A, B); dorsum of abdomen anteriorly with long, dark, posteriorly curved setae (Fig. 1B); postepigastric invaginations present. Six spinnerets; ALS elongated (0.15), separated from each other by one diameter or more (Fig. 1F), piriform gland spigots elongated with few associated setae; PLS and PMS conical and short, PLS larger than PMS (Fig. 1F). Female pedipalp with one pectinate claw. Male palp: femur with two dorsal spines, one median and one posterior; tibia short with RTA single, directed apically; cymbium oval without apical scopula; bulb rounded; embolus prolateral, filiform and inserted at 6 o’clock position; conductor sclerotized, curved retrolaterally and inserted prolaterally; robust and sclerotized median apopohysis with terminal hook, inserted distally and curved retrolaterally in straight angle (Figs 3 A–D). Epigyne: atrium extremely sclerotized; posterior extension medially projected; folds of copulatory duct ventrally visible (Figs 3E, F). Vulva: copulatory duct with proximal part laterad; median part of duct with three lateral folds; secondary spermathecae apparently absent; primary spermathecae inconspicuous; fertilization duct long, directed laterally and well advanced from the epigastric furrow (Fig. 3G).
Distribution. Known only from caves in the state of Minas Gerais, Brazil (Fig. 4).
Composition. Monotypic.
description: Published as part of Rodrigues, Bruno V. B., Cizauskas, Igor & Lemos, Yuji, 2020, A new genus of cave spider from Neotropical region (Gnaphosidae: Prodidominae), pp. 77-83 in Zootaxa 4722 (1) on pages 78-79, DOI: 10.11646/zootaxa.4722.1.8, http://zenodo.org/record/3603724