Antilloides Brescovit, Ruiz & Garcia, 2016, new genus
Creators: name: Brescovit, Antonio D.
name: Ruiz, Alexander Sánchez
name: Garcia, Giraldo Alayón
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Filistatidae
Antilloides

description: Antilloides new genus
Type species. Antilloides abeli new species
Etymology. The generic name is a contraction of Antilles plus “oides”, and is neuter in gender.
Diagnosis. Males of Antilloides can be distinguished from other American Prithinae by the tibia with two-three strong, distally rhomboid spines on a projected area (Figs 9C, 11A, D‒E) and the cymbium is elongate distally and is approximately the length of the embolus (Fig. 16C‒F). Females can be distinguished from other Prithinae by the genitalia having an anterior, elongated uterus externus (Fig. 9F) and one pair of spermathecae with narrow and sinuous necks on the border of the cuticular fold (Figs 17 F, 20C).
Description. Size small, 1.8–5.0. Carapace ovoid, with inconspicuous thoracic fovea in males, absent in females (Fig. 9A‒B), posterior border truncate (Figs 13A, 14B). Eight subequal eyes grouped on a distinct tubercle. Clypeus almost horizontal (Fig. 9A). Chelicerae robust, fused at base, with distal promarginal lamina, and serrula with short teeth (Fig. 15A‒D). Sternum without sigilla, fused at labium. Spines absent on legs. Female pedipalpal tarsus hirsute, no spines, claw with 10–11 teeth. Leg I–IV with many irregularly distributed sensilla and featherlike setae (Fig. 15D‒G) as well as chemosensitive setae (Figs 10C, 15D). Leg II of male unmodified. Calamistrum short, triseriate, comprising elongate and comb-like setae (Figs 10E‒F, 15H). Three pectinate claws, the paired claws with 7–9 teeth and the unpaired claw with 3–4 teeth (Fig. 10A‒D). Tarsal organ capsulated, slightly elevated and smooth (Fig. 15E‒F) sometimes paired with a sensill (Fig. 15G). Male palpal femur long, almost one third larger than tibia (Fig. 9C‒D), with a ventral median group of erect setae. Tibia thick, longer than the patella, hirsute, no spines, lyriform organs subdistal (Fig. 19G‒H) and with a retrolateral distal projection with strong spines that have a blunt distal area (Figs 9C, 11A, D‒E, 16B, G). Cymbium long, narrow, very slender, distally tapering, reaching almost to the embolus tip (Fig. 16A‒F), with at least one small sensill, scattered chemosensitive setae (Fig. 11G), one smooth seta on the prolateral border (Fig. 11H) and feathery setae that are elongated at the tip (Fig. 16C‒D). Tegulum pyriform (Fig. 9D). Embolus long, without paraembolic lamina, generally sinuous at tip (Figs 11A, 16C‒G). Female genitalia with an elongated uterus externus, sometimes surpassing dorsally the spermathecae (Fig. 14E) or short, but enlarged in some species (Figs 20D; 21C) and one pair of spermathecae with a narrow and sinuous neck leading to a globose or oval receptaculum (Figs 9F, 14E, 20C). Abdomen oval and slightly hirsute (Fig. 9A‒B). Cribellum divided (Figs 10H, 12A). Spinnerets subterminal. ALS and PMS with rows of large modified setae (Fig. 12B). ALS with one major ampullate gland spigot situated laterally to the piriform gland spigot field (Fig. 12C). PLS with clavate setae, at least two aciniform spigots (Fig. 12D) and at least one paracribellar gland spigot (Fig. 12A). PMS with one paracribellar gland spigot, one minor ampullate gland spigot and a few aciniform gland spigots (Fig. 12E‒F).
Distribution. Greater Antilles: Cuba, Hispaniola, Puerto Rico and Lesser Antilles: Virgin Islands.
description: Published as part of Brescovit, Antonio D., Ruiz, Alexander Sánchez & Garcia, Giraldo Alayón, 2016, The Filistatidae in the Caribbean region, with a description of the new genus Antilloides, revision of the genus Filistatoides F. O. P. - Cambridge and notes on Kukulcania Lehtinen (Arachnida, Araneae), pp. 401-432 in Zootaxa 4136 (3) on page 413, DOI: 10.11646/zootaxa.4136.3.1, http://zenodo.org/record/263114