Yekuana wanadi, Botero-Trujillo & Moreno-González & Prendini, 2024
publication ID |
https://doi.org/10.3390/insects15100761 |
DOI |
https://doi.org/10.5281/zenodo.17359632 |
persistent identifier |
https://treatment.plazi.org/id/C63C340F-B72E-4A77-1292-FC2B6F2E966B |
treatment provided by |
Carolina |
scientific name |
Yekuana wanadi |
status |
sp. nov. |
Yekuana wanadi , sp. n.
urn:lsid:zoobank.org:act:5E94C048-6BB1-45AF-B8B7-2A23CA67296C
Figure 1 View Figure 1 , Figure 2 View Figure 2 , Figure 3B View Figure 3 , Figure 4B,D View Figure 4 , Figure 5B,D View Figure 5 , Figure 6C,D View Figure 6 , Figure 7B,D,F View Figure 7 , Figure 8B,D,F View Figure 8 , Figure 9B View Figure 9 , Figure 10B,D View Figure 10 , Figure 11B,D View Figure 11 , Figure 12D–F View Figure 12 , Figures 13C View Figure 13 , 14 View Figure 14 and 16F View Figure 16 and Table 1 View Table 1
Type Material. Holotype ♂ ( AMNH IZC 325050 ), VENEZUELA: Edo . Bolívar: St. Elena de Uairén [Santa Elena de Uairén, 04 ◦ 36 ′ 23.2 ′′ N 61 ◦ 06 ′ 19.4 ′′ W], km 315 , 14.xi.2005 – ii.2006, C. Seiderman GoogleMaps .
Diagnosis. Yekuana wanadi differs from Y. venezolensis as follows. Yekuana wanadi is considerably smaller than Y. venezolensis (at least the ♂) ( Table 1 View Table 1 ). The anterior margin of the carapace ( ♂) of Y. wanadi is less markedly pointed ( Figure 4 B View Figure 4 ) than that of Y. venezolensis . The proventral distal tubercle on the pedipalp trochanter ( ♂) is moderate, about as long as broad in Y. wanadi but slightly enlarged and longer than broad in Y. venezolensis . The anterior margin of the pedipalp patellar apophysis ( ♂) is armed with five granules in Y. wanadi ( Figure 7 F View Figure 7 ) but with three or four in Y. venezolensis . The first segment of the pygidial flagellum ( ♂) is very long, noticeably longer than the posterior segment of the pygidium ( XII), and the other segments are short, about one-quarter the length of the first flagellar segment or less, in Y. wanadi ( Figures 12 E View Figure 12 and 13 C View Figure 13 ), whereas all segments of the flagellum are moderately elongated, similar to or shorter than the posterior segment of the pygidium, in Y. venezolensis . The first segment of the pygidial flagellum ( ♂) is sinuous and broadens posteriorly in lateral aspect in Y. wanadi ( Figure 12 E View Figure 12 ) but linear and unmodified in lateral aspect in T. venezolensis .
Etymology. The specific epithet is a noun in apposition inspired by the Venezuelan myth of the “Wanadi”, the Creator, which tells a story of the Wanadi’s wish to make good people on Earth.
Description. Based on the holotype male ( AMNH IZC 325050). Female unknown.
Total length: Adult length, measured from anterior margin of carapace to posterior margin of pygidium (segment XII), 19.95 mm ( Figure 3 B View Figure 3 , Table 1 View Table 1 ).
Color : Carapace dark brown to blackish ( Figure 4 B View Figure 4 ); tergites dark reddish brown ( Figure 5 B View Figure 5 ). Sternites dark red, II–VIII each with medial part paler, orange-brown ( Figure 5 D View Figure 5 ). Pygidium dark reddish brown ( Figure 12 D – F View Figure 12 ). Flagellum reddish brown, covered with reddish macrosetae, segments with basal and distal margins yellow ( Figures 12 E View Figure 12 and 13 C View Figure 13 ). Pedipalp trochanter, femur, patella, tibia, and tarsus dark reddish brown ( Figure 7 B, D, F View Figure 7 and Figure 8 B, D, F View Figure 8 ); coxae paler, reddish brown ( Figure 4 D View Figure 4 ). Legs dark red, becoming progressively paler distally with tarsi yellowish ( Figures 3 B View Figure 3 and 10 B, D View Figure 10 ).
Chelicerae: Movable finger longer than fixed finger, hinged along dorsal margin, prolateral surface with dense brush of long, curved, reddish macrosetae ( Figure 6 C, D View Figure 6 ); distal half of manus, prolateral, ventral, and to a lesser extent retrolateral surfaces each with dense brush of sublinear reddish macrosetae; fixed finger with two well-developed teeth of similar size.
Prosoma: Carapace surface scabrose, punctate with shallow granules ( Figure 4 B View Figure 4 ); anterior margin markedly pointed; fovea elongated, deep, aligned with leg III trochanter and extending slightly anteriorly; anteromedian epistome pronounced, acute; anterior third of carapace with distinct, smooth W-shaped area, without anterolateral oblique carinae between median and lateral ocelli; part of carapace anterior to median ocular surface not raised anteromedially ( Figure 4 B View Figure 4 ); median ocular area without superciliary carina between ocelli; lateral ocular tubercle with three (anterior, median, and posterior) medium to large, yellow peripheral ocelli surrounding two (anterodorsal and posteroventral) minute, darkened central ocelli (similar to Figure 15 A View Figure 15 ). Anterior sternum (prosternum) without median longitudinal suture (Figures 44 D and 16 F); posterior stylet-like part relatively broad, arrow-shaped, and completely exposed, not obscured by coxae of legs II. Median sternum (mesosternum) infolded, not completely exposed (posterior part obscured), markedly sclerotized and entirely pigmented ( Figure 16 F View Figure 16 ).
Pedipalps: Surfaces predominantly smooth and shiny ( Figure 7 B, D, F View Figure 7 and Figure 8 B, D, F View Figure 8 ). Coxa smooth ventrally; apophysis densely covered with macrosetae, terminating anteriorly in tubercle. Trochanter smooth dorsally and retrolaterally ( Figure 7 B View Figure 7 ), coarsely granular prolaterally, and sparsely granular ventrally; prodorsal surface with five tubercles plus small supernumerary tubercle basally on dextral pedipalp; principal (fourth) tubercle largest, spiniform ( Figure 7 B View Figure 7 ); proventral surface with two tubercles, proximal tubercle small, distal tubercle moderately enlarged. Femur smooth dorsally ( Figure 7 D View Figure 7 ), retrolaterally, and ventrally, coarsely granular prolaterally; prodorsal surface with obsolete tubercle; proventral surface with moderate, subspiniform tubercle. Patella smooth dorsally ( Figure 7 F View Figure 7 ), retrolaterally, and ventrally, coarsely granular prolaterally; proventral surface with small distal tubercle. Patellar apophysis slightly shorter than patella width ( Figure 7 F View Figure 7 , Table 1 View Table 1 ); anterior margin with serrate row of five granules; posterior margin without granules. Tibia unmodified ( Figure 8 B, D, F View Figure 8 ); smooth dorsally, retrolaterally, and ventrally, coarsely granular prolaterally; manus barrel-shaped, prodorsal margin with row of prominent granules extending onto fixed finger ( Figure 8 D View Figure 8 ); proventral surface with small, rounded distal tubercle ( Figure 8 F View Figure 8 ); retrolateral surface unmodified, convex ( Figure 8 B, D View Figure 8 ). Fixed finger, ventral margin with serrate row of denticles; retrolateral surface unmodified, slightly convex like retrolateral surface of manus ( Figure 8 B, D View Figure 8 ); row of denticles linear in retrolateral aspect ( Figure 8 B View Figure 8 ). Tarsus (movable finger), dorsal margin with serrate row of denticles and pronounced basal lobe ( Figure 8 B View Figure 8 ); distal lobe absent; proventral margin with serrate row of denticles progressively increasing in size distally; prolateral surface with smooth longitudinal carina between denticle rows.
Legs: Leg I tarsus, first tarsomere shortest, shorter than wide, fifth to eighth slightly longer than wide, fourth more than twice as long as wide, and second, third, and ninth about three times longer than wide ( Figure 10 B, D View Figure 10 ); ninth tarsomere terminating in single claw (or clawlike seta) ( Figure 10 D View Figure 10 ). Legs II–IV basitarsi each with proventral and retroventral spurs distally; telotarsi each with ventral macrosetae setiform and arranged irregularly, not in rows. Leg IV tibia with proventral spur distally. Tibia dorsal surface with one (legs II – IV) or two (leg I) trichobothria distally.
Opisthosoma: Tergites surface scabrose, densely granular ( Figure 5 B View Figure 5 ); I undivided (entire), II and III each with distinct median longitudinal suture, complete, IV and to a lesser extent V each with median longitudinal suture anteriorly only (obsolete in both), VI–IX undivided (entire); II and III unmodified, each similar in length to IV, or II slightly longer; II–VIII, posterior margins unmodified, linear (not emarginate). Pleural membranes with abundant, markedly sclerotized, elongated granules ( Figure 9 B View Figure 9 ). Sternites densely punctate ( Figure 5 D View Figure 5 ); II (genital) undivided (entire), dorsal (internal) surface with genital sclerites relatively simple ( Figure 11 B, D View Figure 11 ), posterior margin moderately enlarged and lobate (dilate), semicircular ( Figure 5 D View Figure 5 ); III and IV each with median longitudinal suture nearly complete ( III) or complete ( IV), otherwise unmodified; V–VIII each with median longitudinal suture vestigial (anteriorly only); IX undivided (entire); V–IX unmodified. Segments X–XII forming narrow, annular pygidium ( Figure 12 D – F View Figure 12 ); XII (anal segment), dorsal surface slightly angular posteriorly, dorsolateral ommatoids absent ( Figure 12 D, E View Figure 12 ). Pygidial flagellum comprising at least 25 segments (some may be missing); each segment with numerous macrosetae, without ventromedian ommatoids; first segment very long (length five times the maximum width), distinctly longer than distal segment of pygidium ( XII), sinuous in lateral aspect, broadening distally ( Figures 12 E View Figure 12 and 13 C View Figure 13 ); other segments short, about one-quarter length of first segment or less.
Male gonopods: Chitinized arches and gonopods as in Figure 11B,D View Figure 11 . LoD circular, flat, and membranous; Fi small, subtriangular, with sclerotized lateral tips; LoL1 1.7 times broader than long, trapezoidal in shape, membranous, globose, with few sclerotized wrinkles and rounded posterior margin extending beyond posterior margin of chitinized arch; LoL2 membranose, flat, covered by LoL1; Me subcylindrical, short, 1.8 times longer than wide, sclerotized with unsclerotized anteromedian notch; LaM sclerotized, extending posteriorly; Fu and Pi absent. Chitinized arches of LoD and LoL1/LoL2 fused; arches separate, not fused anteromedially but fused posteromedially; chitinized arch of LoD width regular; anterior, lateral, and posterior margins of chitinized arch of LoL1/Lol2 similar in width.
Distribution. Yekuana wanadi is known only from the type locality, Santa Elena de Uairén, in the state of Bolívar, Venezuela ( Figure 2 View Figure 2 ).
AMNH |
USA, New York, New York, American Museum of Natural History |
IZC |
IZC |
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