taxonID	type	description	language	source
4C7BBB54FFBF6179B68AFAD0FB6A5B40.taxon	materials_examined	Type material. Holotype ♂: Chile, Antofagasta Region, 4.4 km N. from the village of Paposo (24 ° 58 ' 11 '' S, 70 ° 28 ' 30 '' W), 1 m asl, (dunes in beach), 22 - 27 / X / 2011. A. A. Ojanguren-Affilastro, J. Pizarro-Araya, D. Valdivia, F. Alfaro Kong, J. E. Barriga Tuñón, S. Rothman Toro, J. Mondaca & M. Ramírez coll. (MNHN); Paratypes (same data as holotype): 1 ♀ (MNHN); 3 ♂, 1 ♀, 3 juv. (MACN); 1 ♂, 2 juv. (MZUC); 1 ♂ (LEULS).	en	Ojanguren-Affilastro, Andrés A., Pizarro-Araya, Jaime (2014): Two new scorpion species from Paposo, in the Coastal desert of Taltal, Chile (Scorpiones, Bothriuridae, Brachistosternus). Zootaxa 3785 (3): 400-418, DOI: 10.11646/zootaxa.3785.3.4
4C7BBB54FFBF6179B68AFAD0FB6A5B40.taxon	etymology	Etymology. The name of this species refers to the type locality, Paposo, a small protected area in Antofagasta Region, in Northern Chile, and is used as a noun in apposition.	en	Ojanguren-Affilastro, Andrés A., Pizarro-Araya, Jaime (2014): Two new scorpion species from Paposo, in the Coastal desert of Taltal, Chile (Scorpiones, Bothriuridae, Brachistosternus). Zootaxa 3785 (3): 400-418, DOI: 10.11646/zootaxa.3785.3.4
4C7BBB54FFBF6179B68AFAD0FB6A5B40.taxon	diagnosis	Diagnosis. Brachistosternus paposo n. sp. is most closely related to Brachistosternus roigalsinai Ojanguren- Affilastro 2002, both species can be separated because the distal lamina of the hemispermatophore of B. roigalsinai is almost straight, and in the same line with the basal portion (Figs. 10, 11), whereas in B. paposo n. sp. the upper part of the distal lamina is conspicuously inclined internally (Figs. 8, 9). The Distal Lamina of the hemispermatophore is proportionally narrower in the base of the apex in B. paposo n. sp. than in B. roigalsinai, the ratio between the total length of the distal lamina and the width of the base of the apex ranges between 7.54 – 9.15 (N = 5; mean = 8.25) in B. paposo n. sp. whereas in B. roigalsinai it ranges between 5.64 – 7.4 (N = 9; mean = 6.89). Other apparent differences in the shape of the hemispermatophores of these two species are not reflected in measurements. Brachistosternus paposo n. sp. specimens are smaller than B. roigalsinai, being the total length 46 – 50.5 mm in ♂ of B. paposo; and 47 – 55 mm in ♀; whereas in B. roigalsinai males it is 52 – 77 mm, and in females it is 61 – 95 mm. Brachistosternus paposo Brachistosternus barrigai Description. Based on the holotype ♂ (MNHN) and paratypes (MACN, LEULS, MZUC). Total length: 46 – 50.5 mm in ♂ (N = 5; mean = 48 mm); 47 – 55 mm in ♀ (N = 5; mean = 51 mm). Colour: Base colour light yellowish, with dark brown, almost black, pigmentation pattern (Figs. 20 – 23) in carapace and tergites, the remaining light yellowish; in some specimens there is a barely visible, light brownish pattern in metasoma and legs. Chelicerae light yellow. Carapace, with two broad dark stripes from the postocular furrow to the lateral margins, leaving a small triangular unpigmented area in the anterior margin, that does not reach the ocular tubercle nor the lateral eyes; with two small posterolateral dark spots. Tergites I – VI each with two well-developed lateral dark spots, and a median small anterior dark spot; most usually these spots are connected forming a single dark stripe. Tergite VII with two faint little lateral dark spots, and with brownish reticular pattern in posterior margins. Sternites, sternum, genital opercula and pectines unpigmented. Metasomal segments I – IV unpigmented or with a light brownish stripe over the LM carina, with a Dorsal Median brownish stripe, and with faint brownish reticular pattern in the dorsolateral margins; metasomal segment V unpigmented or ventrally with VM, VSM and VL stripes joining in the posterior half of the segment, lateral margins with a lateral median stripe. Telson, vesicle unpigmented, acculeus dark brown. Pedipalps: usually completely unpigmented, but in some specimens some areas with a light brownish pattern in femur and patella; femur with a light brownish pattern dorsally and a brownish stripe along external margin. Patella, with dorsal and ventral margins pigmented, with an external stripe. Legs: unpigmented or with a light brownish pattern in the distal half of femur and in patella. Chelicerae: with two subdistal teeth. Carapace: anterior margin convex and with a well developed median projection. Surface: in females lateral margins slightly granular, median area almost smooth; in males lateral margins coarsely granular, median area finely granular. Anterior longitudinal sulcus, posterior longitudinal sulcus, and lateral sulci present and well developed. Median ocular tubercle pronounced placed in the middle of the carapace, interocular sulcus present, median ocelli medium sized, ca two diameters apart; with one seta behind each eye. Three small lateral ocelli on each side of carapace. Tergites: Surfaces, I – VI: finely granular specially in posterior and lateral margins, more densely in males; VII with paired submedian and lateral carinae; lateral carinae restricted to posterior two-thirds of segment, submedian carinae restricted to the posterior half of the segment, intercarinal surfaces with scattered medium-sized granules, rest of surface finely granular. Sternites: Surface smooth in females, coarsely granular in males, more densely in its median part, III – VI with large and elongated spiracles. Metasoma: Metasomal segment I, dorsal surface densely granular, except for the anterior-median area that is almost smooth; DL and LM carinae well developed, granular, with no elevation of the tegument, extending entire length of segment, in some specimens with one DL macrosetae; lateral surface granular, except for the area between LM and LIM carinae, which is almost completely smooth, LIM carinae barely visible between the granulation, occupying the posterior half of the segment and joining medially with the LM carina, LM carina with one macroseta in its median part, LIM carina with one macroseta in its posterior third; ventral surface with coarse blunt granules in males, smooth in females, VL carinae absent or reduced to a barely visible elevation of the tegument, each with two macrosetae; with no VSM nor VM carinae, with one pair of VSM macrosetae on the distal margin of the segment. Metasomal segments II and III: similar to segment I, but less granular and with less developed carinae. Metasomal segment IV: dorsal surface granular, except for the median area, DL carinae granular, extending the entire length of the segment; with one macroseta; LSM carina absent, LM carina visible in males, obsolete in females, with two macrosetae; LIM carina absent, lateral and ventral margins smooth; ventral surface with scattered setae, VM carinae are barely discernible by a slight elevation of the tegument only in highly granular males, otherwise these carinae are obsolete. Segment V elongated (Figs. 4, 5); length / width ratio: 1.65 – 1.82 in ♂, 1.79 – 1.9 in ♀; dorsal surface smooth, males with two very well developed glands or androvestigia (Cekalovic 1973) occupying most of the surface of the length of the segment, DL carinae extending the entire length of the segment in males, and restricted to the anterior third in females, with 1 macroseta; dorsolateral surface granular in males, smooth in females, LSM carinae not visible, LM carinae obsolete in females, granular in males, with six or seven macrosetae, and a similar number of microsetae; ventral surface with scattered granules, more so in the posterior third of the segment, usually with three transversal rows of macrosetae, one near the anterior margin of four macrosetae, and two of two macrosetae each in the median part of the segment (distribution 4 - 2 - 2); VL carinae granular, straight, and extending the entire length of the segment with 7 to 10 VL macrosetae (N = 10; Median = 9), VM carina granular, extending the entire length of the segment, and getting broader in the posterior third. Telson: Vesicle, globose, more so in females; lateral and ventral margins with blunt granules in males, smooth in females; dorsally with two VSM furrows, laterally with a conspicuous furrow on each side; dorso-lateral surface granular in males, dorsal surface smooth and shallow, in males there is no conspicuous glandular surface. Aculeus longer than the vesicle, shallowly curved; more so in females (Figs. 6, 7). Pedipalps: Femur (Fig. 19) with DI, DE, and VI carinae granular, extending entire length of segment; anterior margin with scattered coarse granules and two macrosetae, one basal and one placed medially; rest of the intercarinal surfaces smooth. Patella (Figs. 17, 18) with DI and VI carinae granular, extending entire length of segment; rest of the segment smooth, with three anterior macrosetae. Chela manus (Figs. 12 – 16) slender, slightly more robust in ♂, length / width ratio varies between 4.63 – 4.79 (N = 5; mean = 4.71) in ♂, and between 4 – 4.25 (N = 5; mean = 4.14) in ♀; the length / height ratio varies between 3.44 – 3.64 (N = 5; mean = 3.54) in ♂, and between 3.14 – 3.26 (N = 5; mean = 3.21) in ♀; with a blunt VM accessory carina, internal surface with slight bulge near articulation of movable finger (♀), or with a pronounced, subtriangular projection (♂); fingers elongated, with a median row of denticles, and with eight or nine pairs of accessory denticles, being the basal external denticle usually part of the median row. Trichobothrial pattern neobothriotaxic major Type C, with one accessory trichobothrium in V series of chela; femur with 3 trichobothria (d, i, e), one macroseta (M 1) associated with d and i, e situated in same axis as, or slightly proximal to M; patella, with 19 trichobothria (2 d, i, 3 et, est, 2 em, 2 esb, 5 eb, 3 V); chela with 27 trichobothria (Dt, Db, 5 Et, Est, Esb, 3 Eb, dt, dst, dsb, db, et, est, esb, eb, ib, it, 5 V), Esb forming triangle with Eb 1 and Eb 2. Pectines: Tooth count: 32 – 33 in ♀ (N = 5; Median = 33); 35 – 39 in ♂ (N = 5; Median = 37). Legs: Surfaces smooth, except for the femur of legs II-IV which is granular in males; ventrally with two incomplete carinae. Basitarsi each with two well developed, almost equal length pedal spurs, being the internal one slightly smaller. Telotarsi elongated and ventrollaterally compressed, dorsally with a row of setae, ventrally each with a ventromedian row of poorly developed hyaline setae, and paired rows of ventrosubmedian setae. Counts of setae on telotarsus of leg III: Dorsal setae: 10 – 12 (N = 10; median = 12); ventrosubmedian, prolateral setae: 6 – 7 (N = 10; median = 7); ventrosubmedian, retrolateral setae: 5 – 6 (N = 10; median = 6). Ungues slightly curved, equal in length. Hemispermatophore: (Figs. 8, 9) right and left hemispermatophores asymmetrical as in the rest of the species of the genus. Left hemispermatophore: Basal portion well developed. Distal lamina very well developed, longer than the basal portion; apex elongated and inclined towards the internal margin, distal lobe (distal posterior flexure) very elongated, occupying almost the basal half of the distal lamina; cylindrical apophysis of the basal lobe very well developed, very thick in its median part, with an acute and curved tip, and reaching the basal half of the distal lobe, much longer than the laminar apophysis; row of spines and basal spines well developed and in the same line, internal spines absent; basal triangle very well developed formed by three or four chitinous crests. Right hemispermatophore without a cylindrical apophysis, instead there is secondary laminar apophysis, one third longer than the laminar apophysis; the rest as left hemispermatophore.	en	Ojanguren-Affilastro, Andrés A., Pizarro-Araya, Jaime (2014): Two new scorpion species from Paposo, in the Coastal desert of Taltal, Chile (Scorpiones, Bothriuridae, Brachistosternus). Zootaxa 3785 (3): 400-418, DOI: 10.11646/zootaxa.3785.3.4
4C7BBB54FFBF6179B68AFAD0FB6A5B40.taxon	distribution	Distribution. This species has only been collected in its type locality in the coastal area close to the village of Paposo, in the coast of Southern Antofagasta Region (Fig. 1). Ecology. The area where this species has been collected belongs to the “ Desierto Costero de Taltal ”, of the “ Desierto Costero ” Botanical region. This species has only been collected in coastal environments, in areas with substrate formed mostly by sand, and with some small rocks. Brachistosternus paposo n. sp. was collected in an environment higher than the sea shore level, associated to the following plant species Copiapoa cinerea (Phil.) Britton & Rose, Eulychnia iquiquensis (K. Schum.) Britton & Rose, Nolana sp., Lycium deserti Phil., Euphorbia lactiflua Phil., Cristaria integerrima Phil. and Perityle emoryi Torr (Fig. 2). The only known specimens of B. paposo n. sp. have been collected in spring, which suggests that this species has a spring-summer activity period, as most known species of Brachistosternus. This species has only been collected in sympatry with Brachistosternus barrigai n. sp.	en	Ojanguren-Affilastro, Andrés A., Pizarro-Araya, Jaime (2014): Two new scorpion species from Paposo, in the Coastal desert of Taltal, Chile (Scorpiones, Bothriuridae, Brachistosternus). Zootaxa 3785 (3): 400-418, DOI: 10.11646/zootaxa.3785.3.4
4C7BBB54FFB4617CB68AFB2EFBEA5D28.taxon	materials_examined	Type material. Holotype ♂: Chile, Antofagasta Region, 8.1 km NW from the village of Paposo (24 ° 56 ' 22 '' S, 70 ° 29 ' 34 '' W), 114 msl, (base of the hills of the “ Cordillera de La Costa ”), 22 - 27 / X / 2011. A. A. Ojanguren- Affilastro, J. Pizarro-Araya, D. Valdivia, F. Alfaro Kong, J. E. Barriga Tuñón, S. Rothman Toro, J. Mondaca & M. Ramírez coll. (MNHN). Paratypes (same data as holotype): 1 ♀ (MNHN); 4 ♂, 5 ♀, 7 juv. (MACN); 4.4 km N. from the village village of Paposo (24 ° 58 ' 11 '' S, 70 ° 28 ' 30 '' WS 24), 1 msl, (dunes in beach), (rest of the data as holotype): 1 ♂, 1 ♀ (LEULS); 3 ♂, 2 ♀, 3 juv. (MZUC); 4 ♂, 3 ♀ (MACN).	en	Ojanguren-Affilastro, Andrés A., Pizarro-Araya, Jaime (2014): Two new scorpion species from Paposo, in the Coastal desert of Taltal, Chile (Scorpiones, Bothriuridae, Brachistosternus). Zootaxa 3785 (3): 400-418, DOI: 10.11646/zootaxa.3785.3.4
4C7BBB54FFB4617CB68AFB2EFBEA5D28.taxon	etymology	Etymology. This species is named after the Chilean entomologist Juan Enrique Barriga Tuñón, in recognition of his disinterested support during several collection campaigns.	en	Ojanguren-Affilastro, Andrés A., Pizarro-Araya, Jaime (2014): Two new scorpion species from Paposo, in the Coastal desert of Taltal, Chile (Scorpiones, Bothriuridae, Brachistosternus). Zootaxa 3785 (3): 400-418, DOI: 10.11646/zootaxa.3785.3.4
4C7BBB54FFB4617CB68AFB2EFBEA5D28.taxon	diagnosis	Diagnosis. Brachistosternus barrigai n. sp. is most closely related to Brachistosternus kamanchaca, Ojanguren-Affilastro, Mattoni & Prendini 2007, with both species sharing a very similar external morphology, pigment pattern and shape of the hemispermatophore. Both species can be separated because B. barrigai n. sp. bears a wider and thicker pedipalp chela (Figs. 34 – 39); this difference is quite conspicuous in males, but not in females in which it overlaps with B. kamanchaca. In B. barrigai n. sp. ♂ the length / width ratio varies between 3.64 – 4.03 (N = 10; mean = 3.86) whereas in B. kamanchaca ♂ it varies between 4.12 – 5.03; in B. barrigai n. sp. ♀ the length / width ratio varies between 4 – 4.73, whereas in B. kamanchaca ♀ it varies between 4.07 – 5. In B. barrigai n. sp. ♂ the length / height ratio varies between 2.93 – 3.30 (N = 10; mean = 3.08) whereas in B. kamanchaca ♂ it varies between 3.34 – 3.61; in B. barrigai n. sp. ♀ the length / height ratio varies between 3.33 – 3.55, whereas in B. kamanchaca ♀ it varies between 3.19 – 3.71. Metasomal segment V tends to be wider in the distal margin in B. kamanchaca (Fig. 24), than in B. barrigai n. sp. (Fig. 25), so that the segment seems to be wider in B. barrigai n. sp., however the total length / width ratio is similar in both species. Lateral surfaces of metasomal segment V and telson of males of B. barrigai n. sp. are more granular than in males of B. kamanchaca being the granules of B. barrigai n. sp. more conspicuously marked and more abundant.	en	Ojanguren-Affilastro, Andrés A., Pizarro-Araya, Jaime (2014): Two new scorpion species from Paposo, in the Coastal desert of Taltal, Chile (Scorpiones, Bothriuridae, Brachistosternus). Zootaxa 3785 (3): 400-418, DOI: 10.11646/zootaxa.3785.3.4
4C7BBB54FFB4617CB68AFB2EFBEA5D28.taxon	description	Description. Based on the holotype ♂ (MNHN) and paratypes (MACN, LEULS, MZUC). Total length: 43 – 53.5 mm in ♂ (N = 10; mean = 47.2 mm); 42 – 49 mm in ♀ (N = 10; mean = 46.7 mm). Colour: Base colour dark yellowish, with dark brown pattern (Figs. 43 – 46). Chelicerae with faint reticulate pigmentation on external surface of manus, densely pigmented in the base of the fixed finger, and in the external surface of movable finger. Carapace, with a triangular unpigmented area from the anterior margin of the ocular tubercle, to the anterior margin of the lateral ocelli; with two broad, dark stripes, extending from the lateral ocelli to the posterior longitudinal sulcus, surrounding the ocular tubercle and the unpigmented anterior triangle; median ocular tubercle and area around lateral ocelli dark brown; with two posterolateral dark spots covering most of posterior margin, leaving a median unpigmented area; rest of the carapace with reticular pigment pattern. Tergites I – VI each with a single transversal stripe; tergite VII with three spots, one median anterior and two posterolateral. Sternites, sternum, genital opercula and pectines unpigmented. Metasomal segment I: dorsal surface with two posterolateral dark spots and an anterior median spot, lateral margins pigmented only in the area between LSM and LIM carinae; ventral surface with VL stripes, slightly diffuse that are broader and more marked in their posterior third, VM stripe absent or reduced to some faint pigment in the posterior margin of the segment. Metasomal segment II: dorsal and lateral surfaces as in segment I, ventrally with VL stripes well developed and getting broader distally, VM stripe wide and slightly faint, in some specimens in its median area it is not completely pigmented forming two VSM stripes. Segment III as segment II but more densely pigmented. Segment IV, dorsal surface as segment III, lateral surfaces with a small pigmented area near the posterior margin; ventral surface with well-developed VL and VM stripes, getting broader posteriorly, connected by reticulate pattern in the anterior half, and fusing completely in the posterior margin. Metasomal segment, V dorsal surface as in the rest of the segment (except males with paired median unpigmented glands), lateral surfaces unpigmented, ventral surface with VL and VSM stripes that join in the anterior third of the segment to form a wide VL stripe, and with a thin VM stripe, that fuses with the VL stripes in the posterior half of the segment. Telson, vesicle with faint reticular pattern, except for paired, narrow VSM and VL unpigmented stripes, with a well marked dark VM stripe; males with an unpigmented gland in the median area of dorsal surface; aculeus basally unpigmented, apex dark brown. Pedipalps, trochanter unpigmented; femur with well developed stripes along DI, DE, E, and VE margins, joining in a big dark spot in the articulation with patella. Patella, with dorso-internal, external and ventro-external stripes, connected to each other by reticulate pattern; internal and ventral surfaces unpigmented. Chela with seven dark stripes along DI, DM, DS, D, E, V and VM carinae, these stripes are connected by a dense reticulate pattern, specially in the external surface; area near articulation of fixed and movable fingers, and base of fingers with faint pigmentation. Legs: coxae and trochanters unpigmented; femur pigmented near articulation with patella and along external margin; patella pigmented near articulations and along dorsal and external margins; tibia, basitarsi, and telotarsi unpigmented. Chelicerae: with two vestigial subdistal teeth. Carapace: anterior margin convex and with a weak median projection (Fig. 29). Surface slightly granular in the area anterior from the median eyes; lateral and posterior surfaces more densely granular. Anterior longitudinal sulcus, posterior longitudinal sulcus present but not very deep; lateral sulci very well developed. Median ocular tubercle pronounced placed slightly ahead the middle of the carapace, interocular sulcus present, median ocelli medium sized, ca. two diameters apart; with one seta behind each eye. Three small lateral ocelli on each side of carapace, being the median anterior ocellus 30 percent smaller than the rest of the ocelli; anterior and posterior situated in the same horizontal axis, median ocellus situated one diameter below the rest. Tergites: Surfaces, I – VI: finely granular, more densely in males; VII with paired submedian and lateral carinae; lateral carinae restricted to posterior two-thirds of segment, submedian carinae restricted to the posterior half of the segment, intercarinal surfaces with scattered medium-sized granules, rest of surface finely granular. Sternites: Surface coarsely granular, more densely so in posterior and lateral margins, III – VI with large and elongated spiracles. Metasoma: Metasomal segment I, dorsal surface densely granular, except for the median area that is smooth; DL carinae poorly developed, granular, with no elevation of the tegument, extending entire length of segment, barely visible between the granulation, being in some specimens indiscernible, in some specimens with a DL macrosetae; LSM as DL carinae but even less developed and without macrosetae; lateral surface granular, except for the area between LM and LIM carinae, almost completely smooth, LM and LIM carinae well developed and discernible, occupying the posterior half of the segment and joining medially, LM carina with one macroseta in its anterior margin, LIM carina with one macroseta in its median part; ventral surface densely granular in males, smooth in females, VL carinae absent or reduced to a barely visible elevation of the tegument, each with two macrosetae; with no VSM nor VM carinae, with two pairs of VSM macrosetae, one pair in the anterior half and the other on the distal margin, in some specimens the anterior pair is absent. Metasomal segment II: as segment I, but almost in all specimens with a DL macrosetae, with LM and LIM carinae reduced to less than the posterior half of the segment, and with an additional pair of VSM macrosetae; Segment III: as segment II but with more reduced carinae and with an additional pair of VSM macrosetae. Metasomal segment IV: dorsal surface granular, except for the median area, DL carinae obsolete, with one or two macrosetae each; LSM carinae absent, only represented by a macroseta; lateral surface granular in males, with scattered granules in females, LM carinae obsolete, only discernible by two macrosetae and by surrounding a smooth lateral area below it extending the entire length of the segment; LIM carinae obsolete, reduced to two macrosetae; ventral surface smooth in females, slightly granular in males, with abundant scattered setae, in most granular males VM and VL carinae are barely discernible by some granules. Segment V elongated (Figs. 25, 26); length / width ratio varies between 1.60 – 1.83 in ♂, and between 1.73 – 1.95 in ♀; dorsal surface smooth, males with two glands or androvestigia (Cekalovic 1973) medium sized, of about half of the length of the segment, DL carinae extending the entire length of the segment but reduced to some scattered granules and 5 or 6 macrosetae; lateral surface granular in males, smooth in females, LSM carinae not visible, LM carinae obsolete, represented by five or six macrosetae, and a similar number of microsetae; ventral surface sparsely granular, more so in the posterior third of the segment, usually with five transversal rows of macrosetae, two in the anterior half of four to six macrosetae each, and three of 1 to three macrosetae each (more usually two), being the more common distribution 5 - 4 - 2 - 2 - 2; VL carinae granular, straight, and extending the entire length of the segment with 7 to 10 VL macrosetae (N = 10; mean = 9), VM carina granular, extending the entire length of the segment, and diverging in the posterior third. Telson: Vesicle, globose, more so in females; lateral and ventral margins granular in males, smooth in females; dorsally with a VM and two VSM carinae, laterally with two longitudinal carinae on each side; dorso-lateral surface granular in males, with barely visible DL carinae that is obsolete in females, dorsal surface smooth and shallow, males with a glandular area medially formed by two separated glands, that in some specimens seem to be fused. Aculeus longer than the vesicle, shallowly curved; more so in females (Figs. 27, 28). Pedipalps: Femur (Fig. 40) with DI, DE, and VI carinae granular, extending entire length of segment; VE carina only present in the basal half of the segment; anterior margin with coarse granules and three macrosetae, one basal and two placed medially; rest of the intercarinal surfaces smooth. Patella with DI and VI carinae slightly granular, more so in males, extending entire length of segment (Figs. 41, 42); rest of the segment smooth. Chela manus medium sized (Figs. 35 – 39), slightly more robust in ♂, length / width ratio varies between 3.64 – 4.03 (N = 10; mean = 3.86) in ♂, and in ♀ it varies between 4.07 – 5 (N = 10; mean = 4.29), the length / height ratio varies between 3.64 – 4.03 (N = 10; mean = 3.86) in ♂, and in ♀ it varies between 3.33 – 3.55 (N = 10; mean = 3.41); with a blunt VM accessory carina, internal surface with slight bulge near articulation of movable finger (♀), or with a pronounced, subtriangular projection (♂); fingers elongated, with a median row of denticles, and with five or six pairs of accessory denticles. Trichobothrial pattern neobothriotaxic major Type C, with one accessory trichobothrium in V series of chela; femur with 3 trichobothria (d, i, e), one macroseta (M 1) associated with d and i, e situated in same axis as, or slightly proximal to M; patella, with 19 trichobothria (2 d, i, 3 et, est, 2 em, 2 esb, 5 eb, 3 V); chela with 27 trichobothria (Dt, Db, 5 Et, Est, Esb, 3 Eb, dt, dst, dsb, db, et, est, esb, eb, ib, it, 5 V), Esb forming triangle with Eb 1 and Eb 2. Pectines: Tooth count: 28 – 33 in ♀ (N = 10; median = 30); 31 – 36 in ♂ (N = 10; median = 35). Legs: Surfaces smooth, except for the femur of legs II-IV which is dorsally and ventrally granular. Basitarsi each with two well developed, equal length pedal spurs. Telotarsi elongated and ventrolaterally compressed, dorsally with a row of setae, ventrally each with a ventromedian row of poorly developed hyaline setae, and paired rows of ventrosubmedian setae; telotarsus III (Fig. 30) with following counts of setae: dorsal setae: 9 – 11 (N = 10; median = 9); ventro internal setae: 5 – 7 (N = 10; median = 6); ventroexternal setae: 4 – 6 (N = 10; median = 5). Ungues slightly curved, equal in length, except in telotarsus I in which the ventroexternal ungues is slightly shorter than the ventrointernal. Hemispermatophore: right and left hemispermatophores asymmetrical as in the rest of the species of the genus (Figs. 31 − 33). Left hemispermatophore: Basal portion well developed. Distal lamina well developed, ca. similar in length to the basal portion; distal lobe (distal posterior flexure) medium sized, occupying the basal third of the distal lamina; cylindrical apophysis of the basal lobe well developed, longer than the laminar apophysis; row of spines and basal spines well developed and in the same line, internal spines absent; basal triangle well developed formed by three or four chitinous crests. Right hemispermatophore without a cylindrical apophysis, instead there is secondary laminar apophysis, 50 % longer than the laminar apophysis; the rest as left hemispermatophore.	en	Ojanguren-Affilastro, Andrés A., Pizarro-Araya, Jaime (2014): Two new scorpion species from Paposo, in the Coastal desert of Taltal, Chile (Scorpiones, Bothriuridae, Brachistosternus). Zootaxa 3785 (3): 400-418, DOI: 10.11646/zootaxa.3785.3.4
4C7BBB54FFB4617CB68AFB2EFBEA5D28.taxon	distribution	Distribution. This species has only been collected in its type locality and in a close locality, both in the area around the village of Paposo, in the coast of Southern Antofagasta region (Fig. 1). Ecology. The area where this species has been collected belongs to the “ Desierto Costero de Taltal ”, of the “ Desierto Costero ” Botanical region. This species has been collected in coastal areas, and in the foothills of the mountains of the “ Cordillera de la Costa ”. It occurs in areas with fine clay substratum with scattered rocks. Brachistosternus barrigai n. sp. was collected in a coastal plain environment, associated to the following plant species Copiapoa cinerea (Phil.) Britton & Rose, Polyachyrus fuscus Meyen & Walp, Tetragonia maritima Barnéoud, Perityle emoryi Torr, Heliotropium pycnophyllum Phil., Nolana divaricata (Lindl.) I. M. Johnst. and Nolana aplocaryoides (Gaudich.) I. M. Johnst (Fig. 3). Brachistosternus barrigai n. sp. lives in sympatry with the bothriurids Bothriurus dumayi and Brachistosternus paposo n. sp. and the caraboctonid Caraboctonus keyserlingi.	en	Ojanguren-Affilastro, Andrés A., Pizarro-Araya, Jaime (2014): Two new scorpion species from Paposo, in the Coastal desert of Taltal, Chile (Scorpiones, Bothriuridae, Brachistosternus). Zootaxa 3785 (3): 400-418, DOI: 10.11646/zootaxa.3785.3.4
