Indiani, Rodrigues & Cizauskas & Lemos, 2020
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publication ID |
https://doi.org/ 10.11646/zootaxa.4722.1.8 |
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publication LSID |
lsid:zoobank.org:pub:8B45C687-4552-4C19-8E0F-C5C09389E97F |
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DOI |
https://doi.org/10.5281/zenodo.5920533 |
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persistent identifier |
https://treatment.plazi.org/id/0383343B-FFC2-FFDF-FF53-E59DFE62FEE9 |
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treatment provided by |
Plazi |
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scientific name |
Indiani |
| status |
gen. nov. |
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 ).
Distribution. Known only from caves in the state of Minas Gerais, Brazil ( Fig. 4 View FIGURE 4 ).
Composition. Monotypic.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.