Paracymbiomma pauferrense, Rodrigues, Cizauskas & Rheims, 2018

Cizauskas, Igor, Brescovit, Antonio D., Rodrigues, Bruno V. B. & Rheims, Cristina A., 2024, Description of the female of P. pauferrense Rodrigues, Cizauskas & Rheims, 2018 and three new species of Paracymbiomma Rodrigues, Cizauskas & Rheims, 2018 (Araneae: Prodidomidae) from Brazil, Zootaxa 5474 (3), pp. 271-291 : 284-289

Paracymbiomma pauferrense Rodrigues, Cizauskas & Rheims, 2018

Figs 46–65 , 66A .

Paracymbiomma pauferrense Rodrigues, Cizauskas & Rheims, 2018: 308, figs 3, 17, 55–56, 70 (Holotype ♂ from Reserva da Mata do Pau-Ferro (06°57’ S; 35°44’ W), Areia, Paraíba, Brazil, 26–29 September 1999, A.D. Brescovit et al. leg., examined ( IBSP 67179 ).

Other material examined. BRAZIL, Paraíba: 1♀, Areia, Reserva da Mata do Pau Ferro [06°57’ S; 35°44’’ W], 23–29 September 1999, A.D. Brescovit et al. leg. ( IBSP 235978 ) ; 1♀ ( IBSP 235986 ) ; 1♀ ( IBSP 235987 ) ; 1♀ ( IBSP 235988 ) 1♀ ( IBSP 235990 ) ; 1♂ ( IBSP 235977 ) ; 1♂ ( IBSP 235979 ) ; 1♂ ( IBSP 235980 ) ; 1♂ ( IBSP 235981 ) ; 1♂ ( IBSP 235982 ) ; 1♂ ( IBSP 235983 ) ; 1♂ ( IBSP 235984 ) ; ♂ ( IBSP 235985 ) , all with the same data as first specimen .

Diagnosis. Females of P. pauferrense differ from their eight-eyed congeners by the epigynum with atrium much wider than long, onion dome-shaped ( Figs 49 , 52 , 64 ) (triangular in the other species) and by the CD with first loop sclerotized ( Figs 50 , 53 ) (hyaline in other species).

Description. Female (IBSP 235978): Carapace and legs pale yellow, and abdomen weakly pigmented ( Fig. 46 ). Total length: 3.35. Carapace 1.2 long, 0.95 wide; abdomen 1.75 long, 1.2 wide; sternum 0.79 long, 0.6 wide ( Fig. 48 ); palpal claw with 6 teeth ( Fig. 59 ). ALS 0.25 long, 0.1 wide. ALS with one MaAm and six Pi (Figs

60–61); PLS with two Cy and one Ac ( Figs 60, 62 ); PMS with one MiAm, one Ac and three Cy ( Figs 60, 63 ). Eight eyes arranged in two rows, the anterior row straight, the posterior procurved ( Figs 46–47 ). Eye diameters and interdistances: ALE 0.058; PLE 0.058; PME 0.054; ALE–AME 0.012; PLE–ALE 0.025; AME–ALE 0.012; PME–PLE 0.041; PME–PME 0.062. Chelicerae 0.46 long; one retromarginal tooth and four promarginal teeth. Leg formula 4123. Scopulate on metatarsi and tarsi leg I ( Figs 54–56 ). Trichobothria present on dorsal tibia leg I ( Fig. 57 ). Tarsi I-I with long toothed claws, with 9 teeth ( Fig. 55 ). Leg measurements: I: 3.03 (0.90, 0.48, 0.69, 0.53, 0.44); II: 2.71 (0.60, 0.48, 0.63, 0.53, 0.49); III: 2.7 (0.75, 0.41, 0.50, 0.51, 0.53); IV: 3.76 (1.00, 0.50, 0.81, 0.80, 0.65). Leg spination: I—femur d1-1-0, p0-0-1; tibia v2-2-2; metatarsus v2-2-0. II—femur d1-1-0; tibia v0-1r-1r; metatarsus v2-0-0. III—femur d1-1-0, p0-0-1; tibia d0-1-0, p0-1-1, v1p-2-2; metatarsus p0-1-1, v2-0-3. IV—femur d1-1-0, r0-0-1; tibia d0-1-0, p0-1-1, r0-1-1, v1p-2-2; metatarsus d0-1r-0, p1-0-1, r1-0-0, v1p-2-2. Epigynum: EF as wide as long; A oval with lateral and anterior margins sclerotized ( Figs 49 , 52 ). Vulva: PS bean-shaped, two times longer than wide; SS with strongly curved lateral with well-defined rounded terminal part; FD antero-lateral ( Figs 50 , 53 ).

Variation. Females (n = 4): total length 2.40–3.20.; carapace length 1.10–1.20; femur I length 0.08–0.10.

Distribution. Only known from the type locality in the state of Paraíba, northeastern Brazil ( Fig. 66A ).

Figures

FIGURE 66. Map showing collection records for the known species of Paracymbiomma Rodrigues, Cizauskas & Rheims, 2018. A—Brazil, epigean species; B—Subterranean species.

FIGURES 46–51. Paracymbiomma pauferrense Rodrigues, Cizauskas & Rheims, 2018. Female 46–49, 51 (IBSP 67179); 50 Female (IBSP 235988) 46 habitus, dorsal; 47 carapace, eye area, frontal; 48 sternum, ventral; 49–50 genitalia (49 epigynum, ventral, 50 vulva, dorsal); 51 spinnerets, ventral.A—atrium;ALS—anterior lateral spinnerets;AMS—anterior medianspinnerets; FD—fertilization duct; PIn—post epigastric invagination; PLS—posterior lateral spinnerets; PS—primary spermathecae; SS— secondary spermathecae. Scale lines: 46: 2 mm; 47: 0.25 mm; 48, 51: 0.5 mm; 49–50: 0.3 mm.

FIGURES 52–53. Paracymbiomma pauferrense Rodrigues, Cizauskas & Rheims, 2018. Female (IBSP 235988) genitalia (52 epigynum, ventral, 53 vulva, dorsal). A—atrium; C—conductor; E—embolus; FD—fertilization duct; Scale lines: 0.2 mm.

FIGURES 54–59. Paracymbiomma pauferrense Rodrigues, Cizauskas & Rheims, 2018. Female (IBSP) 54–58 Leg I (54 tarsus and metatarsus, prolateral 55 detail of claw, prolateral, 56 tarsal scopula, ventral, 57 tarsus, tricobothria; 58 tarsus, tarsal organ) 59 palp, claw, prolateral. Scale lines: 54: 300µm; 55: 50µm; 56: 20µm; 57: 10µm; 58: 5µm; 59: 40µm.

FIGURES 60–65. Paracymbiomma pauferrense Rodrigues, Cizauskas & Rheims, 2018. Female (IBSP) 60–63 spinnerets 60 apical; 61 anterior lateral spinneret, apical; 62 posterior lateral spinerets, apical; 63 posterior median spinneret, apical; 64–65 genitalia (64 epigynum, ventral, 65 vulva, dorsal). A—atrium; Ac—aciniform gland spigot; ALS—anterior lateral spinneret; Cy—cylindrical gland spigot; FD—fertilization duct; MaAm—major ampullate gland spigot; MiAm—minor ampullate gland spigot; Pi—piriform gland spigot; PLS—posterior lateral spinneret; PMS—posterior median spinneret; PS—primary spermathecae; SS—secondary spermathecae. Scale lines: 60, 64–65: 100µm; 61–62: 50µm; 63: 40µm.