Paracymbiomma angelim, Rodrigues & Cizauskas & Rheims, 2018

Rodrigues, Bruno V. B., Cizauskas, Igor & Rheims, Cristina A., 2018, Description of Paracymbiomma gen. nov., a new genus of prodidomid spiders from the Neotropical region (Araneae: Prodidomidae) including a new troglobite species, Zootaxa 4514 (3), pp. 301-331 : 304

Paracymbiomma angelim sp. nov.

Figs 1 , 7, 8 , 16 , 31–45 , 49–52 , 71 , 75

Type material. Male holotype from Brazil, São Paulo, Ubatuba (Fazenda Angelim), [23°24'5.55"S 45°3'51.26"W], 23–29 July 2001, C.A. Rheims et. al. leg., deposited in IBSP 211321. Paratypes with same data as holotype: 1 male ( IBSP 211322 ), 1 male ( IBSP 211320 ) and 1 female ( IBSP 211323 ) .

Etymology. The specific name is a noun in apposition and refers to the type locality.

Diagnosis. Males of P. angelim sp. nov. resemble those of P. doisirmaos sp. nov. and P. bocaina sp. nov. in having six eyes ( Figs 14–16 ). They differ from P. bocaina sp. nov. in having PME completely formed and male palps with rounded tegulum (ovoid in P. bocaina sp. nov.), and from P. doisirmaos sp. nov. in having male palps with median apophysis hook-shaped (large and twisted at base in P. doisirmaos sp. nov.) and RTA with robust base and constricted tip (triangular, without constriction in P. doisirmaos sp. nov.) ( Figs 49, 50 ); females are distinguished from those of the other known species of the genus by the epigyne with posterior margin of atrium semicircular forming a hood ( Figs 51, 52 ).

Description. Male (holotype). Total length: 1.86. Carapace 0.80 long, 0.62 wide; abdomen 0.91 long, 0.55 wide; sternum 0.53 long, 0.47 wide; spinnerets ALS 0.21 long, 0.075 wide. Six eyes arranged in two triads. AME absent. Eye diameters and interdistances: ALE 0.048; PLE 0.035; PME 0.032; ALE–ALE 0.032; PLE–ALE contiguous; PME–ALE contiguous; PME–PLE 0.024; PME–PME 0.032. Chelicerae 0.27 long; 6 retromarginal teeth and 4 promarginal teeth. Leg formula 4123; measurements: I: 2.12 (0.58, 0.34, 0.47, 0.39, 0.34); II: 1.97 (0.56, 0.31, 0.41, 0.35, 0.34); III: 1.75 (0.35, 0.32, 0.34, 0.25, 0.49); IV: 2.36 (0.62, 0.32, 0.50, 0.48, 0.44). Leg spination: I – femur d1-1-0, p0-0-1; tibia v2-2 -0; metatarsus v0-2-0.II – femur d1-1-0; tibia v1-1 -0; metatarsus v0- 1-0.III – femur d1-1-0; tibia d1p-1-0, p0-0-1, r0-0-1, v0-2-2; metatarsus p0-1-1, v0-2- 3. IV – femur d1-1-1p; tibia d1-2-0, p0-1-1, r0-0-1, v1-2 -2; metatarsus d0-1r-0,p1-0-1, r0-0-1, v0-1p-2. Palp: femur with two dorsal spines, one median and one posterior; embolar insertion between 9–12 o’clock position, near median apophysis ( Figs 49, 50 ).

Female: (paratype). Total length: 2.25. Carapace 0.82 long, 0.65 wide; abdomen 1.12 long, 0.75 wide; sternum 0.57 long, 0.5 wide; spinnerets ALS 0.13 long, 0.083 wide. Six eyes arranged in two triads. AME absent. Eye diameters and interdistances: ALE 0.055; PLE 0.03; PME 0.03; ALE–ALE 0.04; PLE–ALE 0.01; PME–ALE 0.01; PME–PLE 0.02; PME–PME 0.032. Chelicerae 0.27 long; 6 retromarginal teeth and 3 promarginal teeth. Leg measurements: I: 2.13 (0.62, 0.35, 0.43, 0.38, 0.32; II: 2.01 (0.56, 0.34, 0.41, 0.38, 0.33); IV: 2.41 (0.68, 0.33, 0.50, 0.46, 0.44). Leg spination: I – femur d1-1-0, p0-0-1; tibia v2-2 -0; metatarsus v0-1p-0. II – femur d1-1-0; tibia v1 r- 1r-0; metatarsus v0-1r-0. IV – femur d1-1-0; tibia d1-1-0, p0-1-1, r0-1-1, v1 r-2-2; metatarsus p0-1-0, r0-1-0, v0-1r- 2. Epigyne: posterior margin of epigynal plate anteriorly curved; copulatory duct visible ventrally as an anterior lateral S-shape ( Fig. 51 ). Vulva: copulatory duct narrow throughout its entire length, with distal part of translucent duct with one loop; thin secondary spermathecae and distal part poorly defined ( Fig. 52 ).

Variation. Total length (2 males): 1.86–1.87.

Distribution. São Paulo, Brazil ( Fig. 75 ).

Other material examined. None.

Figures

FIGURES 75. Known distribution records of species of Paracymbiomma gen. nov. from Brazil. In detail the distribution of caves species in Pará state.

FIGURES 1–6. Paracymbiomma gen. nov., habitus, dorsal view: 1 P. angelim sp. nov., male; 2 P. doisirmaos sp. nov., male; 3 P. pauferrense sp. nov., male; 4 P. carajas sp. nov., female; 5 P. bocaina sp. nov., female; 6 P. caecus sp. nov., male.

FIGURES 7–12. Paracymbioma gen. nov.: 7–8 P. angelim sp. nov., female: 7 carapace, dorsal view; 8 chelicerae, dorsal view; 9–11 P. carajas sp. nov.: 9 mouthparts, ventral view; 10 sternum, ventral view; 11 spinnerets. 12 P. bocaina sp. nov., male, postepigastric invaginations (PIn).

FIGURES 13–18. Eyes, frontal view: 13 P. caecus sp. nov., male; 14 P. bocaina sp. nov., female; 15 P. doisirmaos sp. nov., male; 16 P. angelim sp. nov., male; 17 P. pauferrense sp. nov., male; 18 P. carajas sp. nov., male.

FIGURES 31–36. P. angelim sp. nov., male: 31 Chelicerae, detail of teeth and promarginal escort setae, retromarginal view; 32 Fang shaft serrula, retrolateral view; 33 Sternum, intercoxal setae; 34 Metatarsus I, dorsal view; 35 Tarsus II, claw, prolateral view; 36 Tarsus IV, claw, prolateral view. PEs—promarginal escort seta; Rk—promarginal rake seta; Wh— cheliceral whisker seta.

FIGURES 37–42. P. angelim sp. nov., male: 37 Abdomen, detail of postepigastric invaginations (PIn), ventral view; 38 Spinnerets, ventral view; 39 Same, apical view; 40 Same, detail of ALS; 41 Same, detail PLS; 42 P. carajas sp. nov., female: Detail PMS. Ac—aciniform gland spigot; Cy—cylindrical gland spigot; MaAm—major ampullate gland spigot; MiAmminor ampullate gland spigot; Pi—piriform gland spigot.

FIGURES 43–48. 43–45 P. angelim sp. nov., male palp: 43 ventral view; 44 prolateral view; 45 detail of retrolateral tibial apophysis and paracymbium; 46–48 P. carajas sp. nov.: 46 Male, palp, detail of retrolateral tibial apophysis and paracymbium; 47 Same, detail of median apophysis and conductor; 48 female, epigynum, dorsal view. C—conductor; CD—copulatory duct; E—embolus; FD—fertilization duct; MA—median apophysis; Pcb—paracymbium; RTA—retrolateral tibia apophysis; SSsecondary spermathecae.

FIGURES 49–52. P. angelim sp. nov. 49–50 Male palp: 49 ventral view; 50 retrolateral view; 51–52 Female: 51 epigynum, ventral view; 52 vulva, dorsal view. C—conductor; CD—copulatory duct; E—embolus; FD—fertilization duct; lp—loop; MA—median apophysis; Pcb—paracymbium; SS—secondary spermathecae. Scale bars: 0.25 mm.

FIGURES 69–74. Male palps, ventral view: 69 P. doisirmaos sp. nov.; 70 P. pauferrense sp. nov.; 71 P. angelim sp. nov.; 72 P. carajas sp. nov.; 73 P. bocaina sp. nov.; 74 P. caecus sp. nov.