Cymbiapophysa carmencita, Peñaherrera-R., 2023

Penaherrera-R., Pedro, 2023, Increasing knowledge of Cymbiapophysa Gabriel & Sherwood, 2020 (Araneae, Theraphosidae): general distribution, key to species, and three new species from Ecuador, ZooKeys 1178, pp. 17-38 : 17

Cymbiapophysa carmencita sp. nov.

Figs 1 , 5 , 6B , 7B , 9A, B , 10

Examined material.

Holotype: Republic of Ecuador • 1 ♂; Province of Cotopaxi, Canton Pangua, Parish of El Corazon , Padrewasi ; -1.2015, -78.9895, 2785 m a.s.l.; 25 February 2023; M. López-García, J. Montalvo, D. Brito-Zapata & C. Reyes-Puig leg.; ZFSQ-i11578.

Diagnosis.

Cymbiapophysa carmencita sp. nov. can be distinguished from other species by the morphology of the male palpal bulb from C. falconi sp. nov. by the presence a continuous and slightly serrated PACK keel, slightly serrated PI keel, developed A keel, PS as long as PI keel, absence of RI keel, and presence of Type III urticating setae (disjunct and distally serrated PACK keel, smooth PI keel, weakly developed A keel, PS keel longer than PI keel, well-developed RI keel, and absence of Type III urticating setae in C. falconi sp. nov.); C. homeroi sp. nov. by the slightly serrated PACK and PI keels, absence of RI keel, D weakly developed, and presence of Type III urticating setae (slightly serrated PACK keel and smooth PI keel, developed RS keel, weakly developed RI keel, D developed, and absence of Type III urticating setae in C. homeroi ); from C. velox and C. yimana by the presence of a slightly serrated PACK and PI keels, PS keel as long as PI keel, and absence of RI keel (PACK keel(s) absent, smooth PI, PS keel as long as PI keel, and weakly developed RI in C. velox and C. yimana ( Gabriel and Sherwood 2020; Sherwood et al. 2021a)); from C. marimbai , C. magna , and C. seldeni by the presence of a slightly serrated PACK keel, absence of a tibial apophysis, and D weakly developed (two PACK keels present, tibial apophysis present, and D well-developed in C. marimbai ; PACK keel(s) absent, tibial apophysis present, and D developed in C. magna ; PACK keel(s) absent, tibial apophysis present, and D weakly-developed in C. seldeni ( Perafán and Valencia-Cuéllar 2018; Sherwood et al. 2021a; Sherwood and Gabriel 2023)). Cymbiapophysa carmencita sp. nov. can further be distinguished from all other species by the absence of a RS keel, developed A and PAIK keels (weakly developed RS and A keels, PAIK keel absent in C. falconi sp. nov., C. magna , C. marimbai , C. velox , and C. yimana , developed RS and A keels, PAIK keel absent in C. homeroi sp. nov.; weakly developed RS keel, well developed A keel, PAIK keel absent in C. seldeni ( Perafán and Valencia-Cuéllar 2018; Gabriel and Sherwood 2020; Sherwood et al. 2021a; Sherwood and Gabriel 2023)).

Description.

Male holotype (ZFSQ-i11578): Total length including chelicerae: 23.21. Carapace: length 10.38, width 8.59. Caput: raised. Ocular tubercle: slightly raised, length 0.98, width 1.46. Eyes: ALE> AME, AME> PLE, PLE> PME, anterior eye row slightly procurved, posterior row slightly recurved. Clypeus: narrow; clypeal fringe short. Fovea: straight. Chelicera: length 3.31, width 1.95. Abdomen: length 9.52, width 6.00. Maxilla with 112-129 cuspules covering approximately 40% of the proximal edge. Labium: length 1.76, width 0.95, with 37 cuspules most separated by 0.5-1.0 × the width of a cuspule. Labio-sternal mounds joined along the entire base of the labium. Sternum: length 4.25, width 4.01, with three pairs of sigilla. Tarsi I-IV fully scopulate, tarsi I-II divided by narrow strip of longer and thicker setae, Tarsi III-IV divided by wide strip of longer and wider setae. Metatarsal scopulae: I 100%; II 70%; III 20%; IV 15%. Lengths of legs and palpal segments: see Table 2 , legs IV, I, II, III. Spination: Leg I: femur p 0-0-2, v 1-1-1, d 1-2-1-2-1; patella p 0-2-0; tibia p 1-1-1-1-1, r 0-1-1-1-1-1, v 2-1-2-1-1-1 (3ap); metatarsus p 0-1-1-1, r 0-0-1, v 0-1-1-2 (4ap). Leg II: femur r 0-1-1-1-1, d 0-2-1-1-2; patella p 0-1-0, v 0-0-1; tibia p 1-0-1, r 1-1-1, v 2-1-2(3ap); metatarsus p 1-1-1, r 0-1-1-1, v 0-1-1-2-0(3ap). Leg III: femur r 0-1-1-1, d 2-1-2-1; patella p 0-1-0, r 0-1-0; tibia p 2-1-1-2, r 1-1-1, v 1-1-0(3ap), d 0-1-0; metatarsus p 1-1-1, r 0-1-1-1, v 0-1-1-1-1-1(3ap), d 0-0-2. Leg IV: femur p 0-1-1, d 1-1-1-1; patella p 0-1-0, r 0-1-0; tibia p 2-2-1-2-1, r 1-1-1, v 1-1-1-1(2ap), d 1-0-0; metatarsus p 1-1-1-1, r 0-1-1-1-1-1, v 1-1-1-1-1-1-1-1-1 (4ap). Pedipalp: femur p 0-0-1; patella p 0-1-0; tibia p 1-1-2-1-2, r 0-0-2. Palpal cymbium with rounded developed retrolateral apophysis (Fig. 1C ). Leg I lacking tibial apophyses. Femur III laterally incrassate. Palpal tibia and metatarsus I straight. Posterior lateral spinnerets with three segments, basal 1.63, median 1.09, digitiform apical 2.60. Lateral median spinnerets with one segment. Palpal bulb (Fig. 5 ) with weakly-developed and quadrate TH. PS, PACK, and PI keels well-developed; A and PAIK developed. PS keel as long as PI keel. PACK keel extending less than a quarter of the embolus. PACK and PI keels slightly serrated. ER disjunct from PC forming a PR, PAR, RI, RS absent. PC narrow and constricted in posterior half. D weakly developed. Ventral face with rugulose area. Type Ib and III urticating setae present.

Etymology.

The specific epithet carmencita is a noun in apposition and honours my mother, Carmen Beatriz Romero Palacios, and my sister, Carmen Emilia Peñaherrera-Romero. Although they have bad tempers, they have always supported and influenced me throughout my life.

Distribution.

Cymbiapophysa carmencita sp. nov. is only known from its type locality, near the sector of Padrewasi, Province of Cotopaxi, at 2785 m, in the central area of the Cordillera Occidental of the Andes of Ecuador.

Ecology.

The holotype of Cymbiapophysa carmencita sp. nov. was found under a log between a livestock intervention zone and Guadua patch in montane evergreen forest of the Cordillera Occidental of the Andes of Ecuador, in the Northern Andes biogeographic province (Fig. 10 ).

Figures

Figure 1. Leg I, metatarsus morphology, retrolateral view A Cymbiapophysa falconi sp. nov. male holotype (AE- 0005) B Cymbiapophysa homeroi sp. nov. male holotype (ZSFQ-i 11577) C Cymbiapophysa carmencita sp. nov. male holotype (ZSFQ-i 11578). Scale bars: 0.5 mm (A); 1 mm (B, C).

Figure 5. Cymbiapophysa carmencita sp. nov. male holotype (ZSFQ-i 11578), palpal bulb (left hand side): A prolateral view B retrolateral view C dorsal view D ventral view. Scale bars: 0.5 mm.

Figure 6. Maxillary spiniform setae (white arrow) A Cymbiapophysa falconi sp. nov., male holotype (AE- 0005) B Cymbiapophysa carmencita sp. nov., male holotype (ZSFQ-i 11578). Scale bars: 0.5 mm.

Figure 7. Prosoma showing ventro-basal dilatation of coxae (black arrows), ventral view A Cymbiapophysa falconi sp. nov., male holotype (AE- 0005) B Cymbiapophysa carmencita sp. nov., male holotype (ZSFQ-i 11578). Scale bars: 1 mm.

Figure 9. Group of short and coarse setae (light blue lines) and thickened trichobothria (light blue arrow) in metatarsus IV. Cymbiapophysa carmencita sp. nov. male holotype (ZSFQ-i 11578) A retrolateral view of basal part B close up to structures. Cymbiapophysa falconi sp. nov. male paratype (AE- 0004) C retrolateral view of basal part D close up to structures. Scale bars: 1.5 mm (A, B); 1 mm (C, D).

Figure 10. Distribution of the genus Cymbiapophysa Gabriel & Sherwood, 2020 including biogeographical regions of Ecuador and Colombia sensu Morrone 2014 and Cisneros-Heredia 2019. Blue circle = Valley of Yunguilla, type locality of C. falconi sp. nov.; Black circle = Reserve Rio Guajalito, type locality of C. homeroi sp. nov.; White circle = Padrewasi, type locality of C. carmencita sp. nov.; Yellow circle = Paramba, type locality of C. velox; Pink circle = Pambelar, historic record of C. velox; Dark green circle = Carondelet, type locality of C. seldeni; Light green circle = Reserva Natural Biotopo Selva Humeda, type locality of C. marimbai; Dark brown circle = Itsmina, possible occurrence of C. magna; Light brown circle = Andagoya, possible occurrence of C. magna.