taxonID	type	description	language	source
1135C119FFEAFFE8FF39A5C0FA1EFDC0.taxon	materials_examined	Material examined. Holotype: male (ISLA 39675), preserved in ethanol: Curionópolis, Pará, Brazil, Cave SL _ 0190 (6 ° 0 ' 9.55 " S, 49 ° 36 ' 58.33 " W), November 2 – 15, 2016, collected by Spelayon Consultoria. Paratypes: four males and four nymphs (two deutonymphs and two tritonymphs), Curionópolis, Pará, Brazil, Cave SL _ 0190, same date and collector as holotype; two males (IBSP 9658), preserved in ethanol: São Félix do Xingu, Pará, Brazil, Cave SFX _ 0014 (6 ° 25 ' 53.76 " S, 51 ° 50 ' 49.92 " W), November 01, 2018, collected by Ativo Ambiental LTDA; one male, preserved in ethanol: Parauapebas, Pará, Brazil, Cave N 1 _ 108 (6 ° 0 ' 44.62 " S 50 ° 18 ' 52.52 " W), October 04, 2024, collected by Ativo Ambiental LTDA.	en	Laibe, Luciana, Prado, Guilherme C., Ferreira, Rodrigo L. (2025): Looks can deceive: a troglomorphic but not troglobitic Attaleachernes species (Pseudoscorpiones: Chernetidae) from the eastern Amazon. Zootaxa 5716 (2): 245-256, DOI: 10.11646/zootaxa.5716.2.4, URL: https://doi.org/10.11646/zootaxa.5716.2.4
1135C119FFEAFFE8FF39A5C0FA1EFDC0.taxon	etymology	Etymology. The specific epithet, spelaeus, is derived from the Greek “ spēlaion, ” meaning “ cave. ” This name refers to the subterranean environment where the new species was discovered.	en	Laibe, Luciana, Prado, Guilherme C., Ferreira, Rodrigo L. (2025): Looks can deceive: a troglomorphic but not troglobitic Attaleachernes species (Pseudoscorpiones: Chernetidae) from the eastern Amazon. Zootaxa 5716 (2): 245-256, DOI: 10.11646/zootaxa.5716.2.4, URL: https://doi.org/10.11646/zootaxa.5716.2.4
1135C119FFEAFFE8FF39A5C0FA1EFDC0.taxon	diagnosis	Diagnosis. Attaleachernes spelaeus sp. nov. differs from A. thaleri by the following combination of characters: absence of a median mark on tergite I (A. thaleri with a median mark on tergite I); presence of five setae on the anterior margin of the carapace (A. thaleri with six setae on the anterior margin of the carapace); all tergites divided (A. thaleri with tergites I and XI undivided); tergites I – IV with 6 – 11 setae, and subsequent ones with 13 – 16 setae on the posterior margin (A. thaleri with 5 – 6 setae on tergites I – IV and subsequent ones with 7 – 8 setae); tergite XI with 10 – 12 setae and presence of two tactile setae (A. thaleri with 13 – 15 setae and lacking tactile setae); pedipalp femur lacking sclerotization and darkened zones (pedipalp femur of A. thaleri with two darker zones on the inner side of the femur); pedipalp patella 9.1 – 9.8 times longer than deep (A. thaleri patella: 7.0 – 8.6 times longer than deep); pedipalp trochanter with a medial posterior protuberance (A. thaleri lacks the protuberance); chela without pedicel 8.5 – 9.6 times longer than deep (A. thaleri chelae 6.8 – 7.5 times longer than deep); trichobothria esb, isb, eb, ib in the proximal half of the fixed chelal finger (in A. thaleri both et and it are located distally on the finger); est and ist close together in the medial portion of the fixed chelal finger (in A. thaleri isb [formally ist; see Harvey 1994] clearly distal to est, which is located at the basal portion of the fixed chelal finger); et distally isolated from it (in A. thaleri, et close to it, both at tip of fixed finger). Leg I tarsus 4.1 – 4.6 times longer than deep (leg I tarsus of A. thaleri 5.1 – 6.2 times longer than deep).	en	Laibe, Luciana, Prado, Guilherme C., Ferreira, Rodrigo L. (2025): Looks can deceive: a troglomorphic but not troglobitic Attaleachernes species (Pseudoscorpiones: Chernetidae) from the eastern Amazon. Zootaxa 5716 (2): 245-256, DOI: 10.11646/zootaxa.5716.2.4, URL: https://doi.org/10.11646/zootaxa.5716.2.4
1135C119FFEAFFE8FF39A5C0FA1EFDC0.taxon	description	Description. Male adult (Figs 2 A, 5 D, 6 F). Body pale orange-brown, pedipalps darker, chelicerae translucent. Body granulated and adorned with clavate, simple, and dentate vestitural setae. Carapace. (Fig. 3 D). 1.00 – 1.15 times longer than deep, strongly granulated, with ocular spots; lateral sides of the median transverse furrow darker, two deep furrows, subbasal furrow clearly closer to the posterior margin than to the median furrow; all setae short and clavate, 5 setae on the anterior margin, 12 – 16 setae (some in a discal position) on the posterior margin (Fig. 3 D). Chelicera. (Figs 3 F, 5 C). Hand with 5 – 6 setae, bs’ and bs ” apically dentate (Fig. 5 C); fixed finger with 3 larger distal teeth and 3 small subapical teeth, movable finger with a bicuspid subapical lobe; subgaleal seta smooth, reaching beyond tip of galea, galea robust and smooth; rallum with 3 simple blades, the anterior one dentated; external serrula with 12 – 16 blades. Tergites. All tergites divided, setae clavate and small; chaetotaxy of tergites I – XI: 6 – 11: 7 – 12: 12 – 15: 11 – 21: 12 – 21: 23 – 24: 24 – 26: 18 – 24: 16 – 23: 18 – 23: 11 – 12. Coxae. Palpal: coxal lobe with 18 setae, two marginal, 15 discal setae and one anterior microseta, tegument granulated on the lateral and anterior surfaces. Pedal: coxal chaetotaxy: 9 – 13: 9 – 14: 10 – 15: 10 – 15. Genital operculum of male. 16 setae in two semicircular series. Genital operculum of female: Spermatheca unknown. Pedipalp. (Figs 4 A – E, 6 A – F). Simple and clavate setae, strongly granulated; trochanter with a protuberance in the posterior medial region, 2.11 – 2.49 times longer than deep; femur 10.40 – 11.72 times longer than deep; patella 9.12 – 9.81 times longer than deep; chela 8.49 – 9.57 times longer than deep; movable chelal finger 8.13 – 9.77 times longer than deep. Fixed chelal finger with 44 – 52 small and sharp teeth and 5 – 7 internal accessory teeth, movable finger with 41 – 55 small and sharp teeth. Venom apparatus located in movable finger between the trichobothria t and st. Fixed chelal finger trichobothria esb, isb, eb, ib in the proximal half of the fixed chelal finger; est and ist close together in the medial portion of the chelae; only et at the tip of the fixed chela finger isolated from it (Figs 4 C – D, 6 A – B). Leg I. (Figs 3 B, 5 B) Trochanter 1.14 – 1.47 times longer than deep; femur 1.15 – 1.54 times longer than deep; patella 1.96 – 2.07 times longer than deep; tibia 3.43 – 3.59 times longer than deep; tarsus 4.10 – 4.57 times longer than deep. A pair of long pseudotactile setae at the tip of the tarsus; clavate setae present on the antiaxial face and smooth setae on the paraxial face; claws smooth and longer than the undivided arolium. Leg IV. (Figs 3 C, 5 A). Trochanter 1.51 – 1.80 times longer than deep; femur + patella 2.62 – 3.02 times longer than deep; tibia 4.04 – 4.67 times longer than deep; tarsus 4.48 – 4.87 times longer than deep. A pair of long pseudotactile setae at the tip of the tarsus; clavate setae present on the antiaxial face and smooth setae on the paraxial region; claws smooth and longer than the undivided arolium. Measurements. (length / width or depth in mm; ratios in parentheses, calculated with three significant digits). Range for the male holotype and male paratypes. Body length. 1.57 – 1.75 / 0.73 – 0.86 (2.03 – 2.26). Carapace 0.60 – 0.62 / 0.50 – 0.59 (1.01 – 1.24). Palps: Trochanter 0.30 – 0.41 / 0.16 – 0.18 (2.10 – 2.49), femur 0.71 – 1.35 / 0.11 – 0.12 (10.40 – 11.72), patella 0.73 – 1.3 / 0.12 – 0.13 (9.12 – 9.81), chela 1.09 – 1.21 / 0.12 – 0.14 (8.46 – 9.77), movable finger 0.49 – 0.52 / 0.05 – 0.06 (8.13 – 9.77). Leg I: Trochanter 0.11 – 0.16 / 0.10 – 0.11 (1.14 – 1.47), femur 0.14 – 0.16 / 0.10 – 0.14 (1.10 – 1.60), patella 0.25 – 0.26 / 0.12 – 0.13 (1.96 – 2.07), tibia 0.25 – 0.26 / 0.07 (3.43 – 3.59), tarsus 0.21 – 0.22 / 0.05 (4.10 – 4.57). Leg IV: Trochanter 0.14 – 0.17 / 0.09 – 0.10 (1.51 – 1.80), femur 0.13 – 0.15 / 0.11 (1.18 – 1.36), patella 0.28 – 0.38 / 0.15 – 0.16 (1.91 – 2.40), tibia 0.33 – 0.38 / 0.08 (4.04 – 4.67), tarsus 0.25 – 0.26 / 0.05 – 0.06 (4.48 – 4.87). Tritonymph. Pale body, mostly depigmented or beige. Clavate setae, projected anteriorly on the carapace and posteriorly on the opisthosoma. Chelicera. Five setae on the palm, bs’ and bs ” apically dentate, galea with three apical branches. Palp. Trochanter: 1.70 – 1.84 times longer than deep; femur 4.41 – 4.89 times longer than deep; patella 4.41 – 4.62 times longer than deep; chela 4.72 – 5.11 times longer than deep and 2.03 times longer than the movable finger. Leg I. Trochanter 1.19 – 1.36 times longer than deep; femur 1.12 times longer than deep; patella 1.54 – 1.74 times longer than deep; tibia 2.44 times longer than deep; tarsus 3.16 – 3.58 times longer than deep. Leg IV. Trochanter 1.67 – 1.79 times longer than deep; femur + patella 2.34 – 2.40 times longer than deep; tibia 3.48 – 3.53 times longer than deep; tarsus 2.83 – 3.48 times longer than deep. Measurements. Body length 1.14 – 1.19 / 0.60 – 0.61 (1.86 – 1.98). Carapace 0.44 / 0.44 – 0.51 (1.10 – 1.18). Palps: trochanter 0.20 – 0.22 / 0.11 – 0.13 (1.70 – 1.84); femur 0.38 – 0.43 / 0.09 (4.41 – 4.89); patella 0.41 – 0.44 / 0.09 – 0.10 (4.39 – 4.60); chela 0.56 / 0.11 – 0.12 (4.72 – 5.11), movable finger length 0.27 – 0.28 / 0.05 – 0.06 (4.81 – 5.89). Leg I: trochanter 0.08 – 0.09 / 0.07 (1.19 – 1.36); femur 0.08 – 0.09 / 0.07 – 0.08 (1.12); patella 0.13 – 0.14 / 0.08 – 0.09 (1.54 – 1.74); tibia 0.13 – 0.15 / 0.05 – 0.06 (2.44); tarsus 0.14 / 0.04 (3.16 – 3.58). Leg IV: trochanter 0.10 – 0.12 / 0.06 – 0.06 (1.67 – 1.79); femur + patella 0.26 / 0.11 (2.34 – 2.40); tibia 0.21 – 0.23 / 0.06 (3.48 – 3.53); tarsus 0.15 – 0.16 / 0.04 – 0.05 (2.83 – 3.48).	en	Laibe, Luciana, Prado, Guilherme C., Ferreira, Rodrigo L. (2025): Looks can deceive: a troglomorphic but not troglobitic Attaleachernes species (Pseudoscorpiones: Chernetidae) from the eastern Amazon. Zootaxa 5716 (2): 245-256, DOI: 10.11646/zootaxa.5716.2.4, URL: https://doi.org/10.11646/zootaxa.5716.2.4
