Indiani, Rodrigues & Cizauskas & Lemos, 2020

Rodrigues, Bruno V. B., Cizauskas, Igor & Lemos, Yuji, 2020, A new genus of cave spider from Neotropical region (Gnaphosidae: Prodidominae), Zootaxa 4722 (1), pp. 77-83 : 78-79

publication ID	https://doi.org/ 10.11646/zootaxa.4722.1.8
publication LSID	lsid:zoobank.org:pub:8B45C687-4552-4C19-8E0F-C5C09389E97F
DOI	https://doi.org/10.5281/zenodo.5920533
persistent identifier	https://treatment.plazi.org/id/0383343B-FFC2-FFDF-FF53-E59DFE62FEE9
treatment provided by	Plazi
scientific name	Indiani
status	gen. nov.

Treatment

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 View FIGURE 1 ), but are distinguished by the male palp with conductor sclerotized and median apophysis robust and sclerotized, curved retrolaterally ( Figs 3 View FIGURE 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 View FIGURE 3 ).

Description. Spiders with carapace and legs pale yellow, and abdomen weakly pigmented ( Figs 1A, B View FIGURE 1 ). Carapace longer than wide, narrower at cephalic region. Fovea present as a narrow dark longitudinal line on posterior half of carapace ( Fig. 1A View FIGURE 1 ). Males eyeless and female with only the ALE ( Fig. 1E View FIGURE 1 ). Chilum present ( Fig. 1E View FIGURE 1 ). Chelicerae relatively long (0.25–0.26) with a convex boss ( Fig. 1E View FIGURE 1 ); promargin with 4 small teeth and retromargin with 6 teeth. Endites slightly convergent anteriorly ( Fig. 1D View FIGURE 1 ); serrula present in single row; labium longer than wide ( Fig. 1D View FIGURE 1 ). 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 View FIGURE 1 ); 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 View FIGURE 1 ). 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 View FIGURE 2 ); bothrium with 3 deep ridges ( Fig. 2D View FIGURE 2 ). Tarsal organ capsulate with oval opening, located dorsally on tarsi ( Fig. 2D View FIGURE 2 ). Two pectinate tarsal claws ( Fig. 2B View FIGURE 2 ); claw tufts composed of slightly widened tenent setae ( Fig. 2B View FIGURE 2 ); claws with classic claw tuft clasper ( Fig. 2C View FIGURE 2 ). Abdomen oval, longer than wide ( Figs 1A, B View FIGURE 1 ); dorsum of abdomen anteriorly with long, dark, posteriorly curved setae ( Fig. 1B View FIGURE 1 ); postepigastric invaginations present. Six spinnerets; ALS elongated (0.15), separated from each other by one diameter or more ( Fig. 1F View FIGURE 1 ), piriform gland spigots elongated with few associated setae; PLS and PMS conical and short, PLS larger than PMS ( Fig. 1F View FIGURE 1 ). 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 View FIGURE 3 A–D). Epigyne: atrium extremely sclerotized; posterior extension medially projected; folds of copulatory duct ventrally visible ( Figs 3E, F View FIGURE 3 ). 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 View FIGURE 3 ).