Yoruba Rodrigues & Rheims 2020
- Dataset
- An overview of the African genera of Prodidominae spiders: descriptions and remarks (Araneae: Gnaphosidae)
- Rank
- GENUS
- Published in
- Rodrigues, Bruno V. B., Rheims, Cristina A. (2020): An overview of the African genera of Prodidominae spiders: descriptions and remarks (Araneae: Gnaphosidae). Zootaxa 4799 (1): 1-80, DOI: 10.11646/zootaxa.4799.1.1
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Arachnida
- order
- Araneae
- family
- Gnaphosidae
- genus
- Yoruba
description
Description. Total length males 1.97 – 2.40 and females 2.12 – 2.7. Carapace and legs pale yellow, abdomen slightly gray (Figs 54 A, B). Carapace longer than wide, slightly narrowed at cephalic region, oval (Figs 54 A, B). Fovea absent. Eight eyes, posterior row strongly procurved and anterior row approximately straight (Figs 54 C, 55 A); PME and PLE irregular; AME dark; interdistance contiguous of AME – ALE, PME – PLE, ALE – PLE. Chilum absent. Chelicerae relatively small (0.22 – 0.27), without boss or teeth (Figs 55 D, E); fang with shaft serrula. Endites slightly convergent anteriorly (Figs 54 D, 55 B), with few hairs on internal margin (Fig. 55 C); serrula absent; labium longer than wide (Figs 54 D, 55 B). Sternum longer than wide, anterior margin straight, rebordered anteriorly and laterally (Fig. 54 D); posterior region strongly protruding between coxae IV, with numerous long and erect setae; intercoxal setae absent and precoxal triangles present (Fig. 54 D). Pedicel with ventral sclerite triangular. Leg formula 4123. Femur I and II with dorsal spines; legs III and IV with spines on femora, tibiae and metatarsi. Patella I larger than the others, length similar to tibia I. All tarsi and metatarsi without scopulae. Trichobothria present on dorsal tibiae, metatarsi and tarsi, arranged in two rows; bothrium with 3 – 4 ridges in proximal plate (Fig. 56 D). Tarsal organ capsulate, with oval opening, located dorsally and distally on tarsi (Fig. 56 E). Two smooth claws (Fig. 56 B); claw tufts composed of slightly widened tenent setae inserted in well-delimited plate; solid claw tuft clasper present (Figs 56 B, C). Abdomen oval, longer than wide (Figs 54 A, B), without scales; dorsum of abdomen anteriorly with long, dark, posteriorly curved setae. Six spinnerets; ALS longer than wide, separated from each other by less than their diameter (Figs 54 E, F), piriform gland spigots cracked and elongated, with associated setae (Figs 57 A, B), major ampulate gland spigot field on well-defined conical structure (Fig. 57 C), male with one major ampulate gland spigot and female with two; PLS and PMS conical and short, PLS larger than PMS (Figs 57 A, 58 A); PLS in male apparently with one minor ampulate gland spigot and two aciniform gland spigots (Fig. 58 B), females apparently with one minor ampulate gland spigot, two aciniform gland spigots and one cylindrical gland spigot (Fig. 57 E); PMS in male with one minor ampulate gland spigot and one aciniform gland spigot (Fig. 58 C), females apparently with one minor ampulate gland spigot, one aciniform gland spigot and one cylindrical gland spigot (Fig. 57 F). Female palp tarsus with chemosensory patch apical and truncad, without claw (Fig. 56 F). Male palp: femur unmodified, with one dorsal median spines; tibia short, with RTA and VTA (Figs 58 D, E); cymbium with apical scopula (Figs 59 A, 60 C); bulb ovoid (Fig. 60 A); sperm duct visible ventrally with terminal part narrow; embolus arising prolaterally (Figs 58 D, 59 B, 60 A); conductor with membranous base, slightly twisted and arising medially (Figs 59 B, 60 A). Vulva: enlarged copulatory ducts; secondary spermathecae small and positioned distally on duct; slender connecting ducts; primary spermathecae separated from each other; fertilization ducts laterad (Figs 59 E, 60 F).
diagnosis
Diagnosis. Species of Yoruba gen. nov. are distinguished from those of other Prodidominae genera by male palp with a ventral tibial apophysis distinctly separate from the retrolateral tibial apophysis (Figs 58 D, 59 B, 60 B), embolus robust with a membranous base (Figs 59 B, 60 A), and long and laminar conductor with the terminal part sclerotized (Figs 59 B, 60 A); female epigyne with wide copulatory openings located medially (Figs 59 D, 60 E); vulva with copulatory ducts enlarged, with small secondary spermathecae connected, connecting duct slender and convoluted laterally, close to primary spermathecae (Figs 59 E, 60 F).
distribution
Distribution. Nigeria and Ivory Coast (Fig. 61). Composition. Two species: Yoruba ibadanus sp. nov. and Y. toubensis sp. nov.
etymology
Etymology. The generic name is a noun in apposition that refers to Yoruba language, one of the official languages of Nigeria and widely spoken in western Africa, where the new genus was recorded. The gender is masculine.
type_taxon
Type species. Yoruba ibadanus sp. nov.
Name
- Homonyms
- Yoruba Rodrigues & Rheims 2020
- Yoruba