Uaiuara , Rheims, Cristina A., 2013

Rheims, Cristina A., 2013, A new genus of huntsman spiders (Araneae, Sparassidae, Sparianthinae) from the Neotropical region, Zootaxa 3734 (2), pp. 199-220: 200-205

publication ID

http://dx.doi.org/10.11646/zootaxa.3734.2.6

publication LSID

lsid:zoobank.org:pub:3BC10987-3883-44BD-9274-22D961B6336C

persistent identifier

http://treatment.plazi.org/id/03C72C23-FF88-FFDC-FF22-F922FABA1735

treatment provided by

Plazi

scientific name

Uaiuara
status

gen. nov.

Uaiuara  gen. nov.

Type species. Sparianthis amazonica Simon, 1880 

Etymology. The generic name was taken from the Amazonian folklore. “ Uaiuara  ” is a demon that usually appears in the shape of a small being with large and flappy ears, a characteristic that refers to the retrolateral groove on the cymbium of the male palps. The gender is feminine.

Diagnosis. Species of the genus Uaiuara  gen. nov. are distinguished from the those of the remaining Neotropical Sparianthinae by the very recurved anterior eye row ( Figs 1–14View FIGURES 1 – 4View FIGURES 5 – 8View FIGURES 9 – 12View FIGURES 13 – 14) and the large number of ventral spines on leg tibiae I–II. Males are further distinguished by the retrolateral groove on the male palpal cymbium ( Figs 30View FIGURES 29 – 32, 34View FIGURES 33 – 36, 38View FIGURES 37 – 40, 42View FIGURES 41 – 44, 46View FIGURES 45 – 48, 50View FIGURES 49 – 52, 54View FIGURES 53 – 56). Females resemble those of the Neotropical species of the genus Stasina Simon, 1877  described by Bryant (1940, 1948) in the general shape of the median septum and in the triangular projections of the lateral lobes ( Figs 31View FIGURES 29 – 32, 35View FIGURES 33 – 36, 39View FIGURES 37 – 40, 43View FIGURES 41 – 44, 47View FIGURES 45 – 48, 51View FIGURES 49 – 52; Bryant 1940, figs 174, 182; 1948, fig. 99) of the epigynes. They are easily distinguished from the latter by the internal duct system of the vulva, which in Stasina  comprises a short copulation duct and large spermathecae (pers. comm.) and in Uaiuara  a laminar and sclerotized part (Lp), arising from the copulation openings, followed by a longer, cylindrical and convoluted part (Cp), which ends at the fertilization ducts ( Figs 32View FIGURES 29 – 32, 36View FIGURES 33 – 36, 40View FIGURES 37 – 40, 44View FIGURES 41 – 44, 48View FIGURES 45 – 48, 52View FIGURES 49 – 52).

Description. Total length (males and females) 3.0– 10. Prosoma slightly longer than wide, highest posteriorly. Thoracic fovea deep and line-like. Anterior eye row very strongly recurved; AME larger than ALE and more distant from each other than from laterals. Posterior eye row straight or very slightly recurved; eyes equal and equidistant ( Figs 1–14View FIGURES 1 – 4View FIGURES 5 – 8View FIGURES 9 – 12View FIGURES 13 – 14). Clypeus as high as diameter of AME. Chelicerae longer than wide. Cheliceral groove with three promarginal teeth, the most basal smallest, and two minute retromarginal teeth. One strong seta present at base of fang ( Fig. 15View FIGURES 15 – 18). Intermarginal denticles absent. Labium rebordered, slightly longer than wide. Endites slightly convergent, longer than wide, with dense scopula on internal margin. Serrula with a single row of denticles ( Fig. 16View FIGURES 15 – 18). Sternum as long as wide, slightly projected between coxae IV. Legs similar in size, usually 2143. Spination pattern in males: legs: femora I–III: p 1 - 1 - 1, d 0-1 - 1, r 1 - 1 - 1; femur IV: p 1 - 1 - 1, d 0-1 - 1, r0- 0-1; patellae I– IV: p0, r0; tibiae I–II: p 1 - 0-1, d0- 0-1, r 1 - 0-1, v 7–9 pairs; tibiae III–IV: p 1 - 0-1, d0- 0-1, r 1 - 0-1, v 2 - 2 - 2; metatarsi I– II: p 1 - 1 -0, r 1 - 1 -0, v 2 -0-0; metatarsi III–IV: p 1 - 1 - 1, r 1 - 1 - 1, v 2 - 2 -0; palp: femur: p0- 0-1, d 0-1 - 2, r0- 0-1; patella: p 1, r 1; tibia: p 1 -0-0, d 1 -0-0. Spination pattern in females: femora I–III: p 1 - 1 - 1, d 0-1 - 1, r 1 - 1 - 1; femur IV: p 1 - 1 - 1, d 0-1 - 1, r0- 0-1; patellae I–IV: p0, r0; tibiae I-II: v 7-9 pairs; tibia III: p 1 - 0-1, r 1 - 0-1, v 2 - 2 - 2; tibia IV: p 1 - 0-1, d0- 0-1, r 1 - 0- 1, v 2 - 2 - 2; metatarsi I–II: p 1 - 1 -0, r 1 - 1 -0, v 2 -0-0; metatarsi III–IV: p 1 - 1 - 1, r 1 - 1 - 1, v 2 - 2 -0; palp: femur p0- 0-1, d 0-1 - 2; patella p 1, r 1; tibia p 2 - 1 -0, d 1 -0-0; r 1 - 1 -0; metatarsus p 2 - 1 -0; r 2 - 1 -0. Trochanter smooth. Metatarsi I–IV with distal trilobate membrane with median lobe much smaller than laterals ( Fig. 17View FIGURES 15 – 18). Trichobothria present on dorsal side of tibiae, metatarsi and tarsi, arranged in two or more rows on tarsi and one on metatarsi. Bothrium with dorsal plate with 6–7 distal grooves, projected over smooth basal plate ( Fig. 18View FIGURES 15 – 18). Tarsal organ capsulate with slightly oval opening ( Fig. 19View FIGURES 19 – 22), located dorsally on distal third of metatarsi. Metatarsi III–IV with distal, ventral preening comb ( Fig. 20View FIGURES 19 – 22). Leg tarsi with pair of pectinate claws with 6–7 very slightly curved secondary teeth and claw tufts ( Fig. 21View FIGURES 19 – 22). Female pedipalp with single, pectinate claw, with 4–5 short secondary teeth ( Fig. 22View FIGURES 19 – 22). Opisthosoma oval, longer than wide. Six spinnerets on projected tegument ring: ALS contiguous, conical and bi-segmented, distal segment with several piriform gland spigots, one major ampullate gland spigot and one nubbin in male ( Fig. 23View FIGURES 23 – 28) and two major ampullate gland spigots in female ( Fig. 26View FIGURES 23 – 28); PMS short and truncated with one minor ampullate gland spigot and 5–7 aciniform gland spigots ( Figs 24, 27View FIGURES 23 – 28); PLS conical and bi-segmented, distal segment with many aciniform gland spigots ( Figs 25, 28View FIGURES 23 – 28). Male palp: femur two times patella length; tibia short, as long as or slightly longer than patella; RTA originating distally with dRTA slightly larger than vRTA ( Figs 30View FIGURES 29 – 32, 34View FIGURES 33 – 36, 38View FIGURES 37 – 40, 42View FIGURES 41 – 44, 46View FIGURES 45 – 48, 50View FIGURES 49 – 52, 54View FIGURES 53 – 56); VTA present in U. amazonica (Simon)  , U. dianae  sp. nov., U. jirau  sp. nov., U. ope  sp. nov. and U. quyguaba  sp. nov. ( Figs 29View FIGURES 29 – 32, 37View FIGURES 37 – 40, 41View FIGURES 41 – 44, 45View FIGURES 45 – 48, 53View FIGURES 53 – 56). Cymbium slightly elongate with large oval alveolus and long retrolateral groove, smooth in U. amazonica (Simon)  and U. dianae  sp. nov. ( Figs 34View FIGURES 33 – 36, 38View FIGURES 37 – 40) and flanked by short strong setae in U. barroana (Chamberlin)  , U. jirau  sp. nov., U. ope  sp. nov., U. palenque  sp. nov. and U. quyguaba  sp. nov. ( Figs 42View FIGURES 41 – 44, 46View FIGURES 45 – 48, 50View FIGURES 49 – 52, 54View FIGURES 53 – 56). Cymbial scopula small, round and located on distal third of cymbium. Bulb with subtegulum and tegulum notched retrolaterally at embolus base; tegulum flanked prolaterally by hyaline lamina, larger at base of embolus and at base of conductor, where it can be hyaline ( Figs 33View FIGURES 33 – 36, 45View FIGURES 45 – 48, 52View FIGURES 49 – 52) or slightly membranous ( Figs 29View FIGURES 29 – 32, 37View FIGURES 37 – 40, 41View FIGURES 41 – 44, 49View FIGURES 49 – 52); median apophysis small, arising at 3 o’clock; conductor hyaline ( Figs 33View FIGURES 33 – 36, 37View FIGURES 37 – 40, 41View FIGURES 41 – 44, 45View FIGURES 45 – 48, 49View FIGURES 49 – 52, 53View FIGURES 53 – 56) or slightly sclerotized ( Fig. 29View FIGURES 29 – 32) arising at 12 o’clock; embolus long, and slender, without projections, arising retrolaterally between 3 and 6 o’clock and curved prolaterally ( Figs 29View FIGURES 29 – 32, 33View FIGURES 33 – 36, 37View FIGURES 37 – 40, 41View FIGURES 41 – 44, 45View FIGURES 45 – 48, 49View FIGURES 49 – 52, 53View FIGURES 53 – 56). Epigyne: Epigynal field as long as wide or slightly longer than wide; lateral lobes with triangular projections posteriorly; median septum triangular or slightly rectangular, extending beyond the epigastric furrow, with pair of anterior copulation openings ( Figs 31View FIGURES 29 – 32, 35View FIGURES 33 – 36, 39View FIGURES 37 – 40, 43View FIGURES 41 – 44, 47View FIGURES 45 – 48, 51View FIGURES 49 – 52, 55View FIGURES 53 – 56). Vulva: internal duct system comprised of a laminar and sclerotized part (Lp), arising from the copulation openings, followed by a longer, cylindrical and convoluted part (Cp), which ends at short and slender fertilization ducts ( Figs 32View FIGURES 29 – 32, 36View FIGURES 33 – 36, 40View FIGURES 37 – 40, 44View FIGURES 41 – 44, 48View FIGURES 45 – 48, 52View FIGURES 49 – 52, 56View FIGURES 53 – 56).

Distribution. Northern South America and southern Central America ( Figs 57–59View FIGURE 57View FIGURE 58View FIGURE 59).

Composition. Seven species: Uaiuara amazonica (Simon)  comb. nov.; U. barroana (Chamberlin)  comb. nov.; U. dianae  sp. nov., U. jirau  sp. nov.; U. ope  sp. nov.; U. palenque  sp. nov.; and U. quyguaba  sp. nov.