Chibchea picunche, HUBER, 2000
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publication ID |
https://doi.org/ 10.1206/0003-0090(2000)254<0001:NWPSAP>2.0.CO;2 |
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persistent identifier |
https://treatment.plazi.org/id/03ACD276-8FE2-FF55-FF6E-FB4642503CC9 |
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treatment provided by |
Felipe |
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scientific name |
Chibchea picunche |
| status |
sp. nov. |
Chibchea picunche View in CoL , new species Figures 80 View Figs , 190 View Figs , 710–715 View Figs
TYPES: Male holotype, 43 9♀ paratypes from 5 km N Los Vilos , Coquimbo, Chile ; 3 m elev., under succulent rock cover along cove, Jan. 5, 1985 (N. I. Platnick & O. F. Francke), in AMNH .
ETYMOLOGY: The specific name is a noun in apposition honoring the Picunche, who were the northernmost of the Araucanian Indian people of Chile. Enslaved by the Spaniards their population rapidly declined and had mostly disappeared by the early 17th century.
DIAGNOSIS: Close relative of C. mapuche and elqui , distinguished from the first by the more distal position of the cheliceral apophyses (fig. 711) and the shorter anterior plate of the epigynum (fig. 714); from C. elqui by the single bulbal apophysis; distinguished from both also by the shape of the procursus (fig. 712).
MALE (holotype): Total length 2.7, carapace width 1.2; leg 1: 16.5 (4.4+0.5+4.4 +5.9+1.3), tibia 2: 2.7, tibia 3: 2.0, tibia 4: 2.5; tibia 1 l/d: 41. Habitus and prosoma shape as in C. mapuche (cf. figs. 699–701); distance PME-ALE about 60% of PME diameter. Carapace light brown with darker median stripe and faint lateral spots (fig. 710), black line pointing down from AME. Sternum wide, light brown; chelicerae with pair of large frontal apophyses distally (fig. 711; small additional apophysis absent in holotype), fangs unmodified. Palps generally as in C. mapuche , procursus distinctive (fig. 712); tarsal organ exposed (cf. female: fig. 80). Legs light brown, without rings; femur 2 thicker than others; curved hairs on tibiae and metatarsi (mainly legs 2 and 3), without spines and vertical hairs; retrolateral trichobothrium of tibia 1 at 19%; tarsus 1 with ~ 24 pseudosegments. Opisthosoma grayish, with large blackish spots dorsally and posteriorly; gonopore without epiandrous spigots; ALS with only one piriform gland spigot each (cf. female: fig. 190).
VARIATION: Tibia 1 in 8 males: 3.5–4.2 (x¯ = 4.0). In some males there is another pair of very small apophyses present on the chelicerae, as illustrated in fig. 711.
FEMALE: Total length (N = 10) 1.9–3.2; tibia 1 (N = 28) 2.9–4.0 (x¯ = 3.5). In gen- eral very similar to male, but distinct, dark rings on femora (subdistally) and tibiae (subproximally and subdistally). Epigynum as in figs. 713–714; dorsal view as in fig. 715.
DISTRIBUTION: Known from the Chilean provinces Coquimbo, Valparaiso, and Aconcagua .
MATERIAL EXAMINED: CHILE: Coquimbo: 5 km N Los Vilos : types above, and 2 juveniles ; same data: 33 6♀ 2 juveniles in AMNH ; 19 km N Los Vilos, Rt 5, km 244, elev. 5 m, Nov. 9, 1993 (N. I. Platnick, K. Catley, M. Ramirez, R. T. Allen), 13 in AMNH ; Valparaiso: Petorca, Los Molles, Rt 5, km 188, elev. 10 m, Nov. 9, 1993 (N. I. Platnick, K. Catley, M. Ramirez, R. T. Allen), 13 3♀ 1 juvenile in AMNH ; Aconcagua : Los Molles, 2 m elev., under succulent rock cover along coast, Jan. 9, 1985 (N. I. Platnick & O. F. Francke), 23 ~ 15♀ some juveniles in AMNH .
Chibchea elqui , new species
Figures 716–722 View Figs
TYPES: Male holotype, 23 2♀ paratypes from 79 km N La Serena ( Rt 5, km 553), Elqui, Coquimbo, Chile ; 300 m elev., Oct. 15, 1992 (N. I. Platnick, P. Goloboff, K. Catley), in AMNH .
ETYMOLOGY: Named for the type locality. The specific name is a noun in apposition.
DIAGNOSIS: Close relative of C. picunche and mapuche , distinguished by the straight and simple procursus (figs. 717–718), and the two bulbal apophyses (fig. 719).
MALE (holotype): Total length 2.4, carapace width 0.9; leg 1: 12.8 (3.6+0.3+3.7 +4.0+1.2), tibia 2: 2.9, tibia 3: 2.5, tibia 4: 3.3; tibia 1 l/d: 39. Prosoma shape as in C. mapuche (cf. figs. 700–701); carapace and ocular area ochre to light brown, with dark brown pattern of spots (fig. 716); short black line running down from between AME; distance PME-ALE about 60% of PME diameter. Clypeus light brown, sternum brown with numerous lighter spots; chelicerae brown, with black apophyses as in C. picunche (cf. fig. 711). Palps in general as in C. mapuche , but procursus straight and long, with simple tip (figs. 717–718), and bulb with pair of apophyses (fig. 719). Legs light brown with dark rings on femora (subdistally) and tibiae (proximally and subdistally); femora 2 stronger than others; almost all hairs missing; retrolateral trichobothrium of tibia 1 at 21%; tarsus 1 with ~ 15 pseudo-
segments. Opisthosoma greenish-gray with dark spots, shape as in C. mapuche (cf. fig. 699) but projecting farther back over spinnerets.
VARIATION: Tibia 1 in other males: 3.7, 4.1.
FEMALE (paratype): Total length 2.5; tibia 1: 3.6. Very similar to male. Epigynum as in figs. 720–721, brown; dorsal view as in fig. 722.
DISTRIBUTION: Known from the Chilean provinces Coquimbo and Santiago.
MATERIAL EXAMINED: CHILE: Coquimbo: Elqui: types above. Santiago: Parellones, Sept. 13, 1966 (L. Peña), 13 in MCZ.
Chibchea mateo , new species Figures 723–731 View Figs
TYPES: Male holotype, 23 1♀ paratypes from W edge San Mateo , Dept. Lima, Peru ; eucalyptus forest, under rocks, 3100 m elev., Mar. 27, 1988 (Coyle, Bennett, Palmer, Smith), in AMNH ; 23 1♀ paratypes, same collection data, in MCZ .
ETYMOLOGY: Named for the type locality. The specific name is a noun in apposition.
DIAGNOSIS: Distinguished from congeners by the rounded dorsal apophysis on the procursus (figs. 725–726).
MALE (holotype): Total length 1.7, carapace width 0.9; leg 1: 14.1 (3.7+0.3+3.7 +5.1+1.3), tibia 2: 2.5, tibia 3: 2.0, tibia 4: 2.3; tibia 1 l/d: 51. Prosoma shape as in C. mapuche (cf. figs. 700–701), but ALE slightly more distant from AME (fig. 723); distance PME-ALE about 70% of PME diameter. Carapace orange-ochre, darker medially; short black line going down from between AME; clypeus and sternum orange-ochre; chelicerae light brown, with pair of distal apophyses (fig. 724). Palps (figs. 727–729) with distinct retrolateral coxal apophysis, femur proximally with rounded retrolateral protrusion and distally with distinct ventral apophysis, procursus dorsally with black subdistal apophysis (figs. 725–726), bulb simple, with distal spine (fig. 727). Legs with dark rings on femora (medially and subdistally) and tibiae (subproximally, medially and subdistally); curved hairs on legs 1–3; without spines and vertical hairs; retrolateral trichobothrium of tibia 1 at 10%; tarsus 1 with ~ 15 pseudosegments. Opisthosoma shape as in C. mapuche (cf. fig. 699), dark greenish-gray with small white and large black spots.
VARIATION: While tibia 1 length is similar in all paratypes (3.6–3.9), one male has a significantly larger prosoma (width 1.2). The males from San Martín (see below) are slightly smaller (tibia 1: 3.2–3.5), but the palps do not differ in size, and the procursus tip is only minimally different. These males have some darker spots proximally on the femora, which are almost invisible in the type specimens.
FEMALE (paratype): Carapace width 1.1; tibia 1: 4.5. Epigynum very simple flat plate, brown with two whitish spots (fig. 730); internal genitalia with pair of elongated pore plates (fig. 731).
DISTRIBUTION: Known from central Peru (Lima, San Martín).
MATERIAL EXAMINED: PERU: Lima: San Mateo : types above ; San Martín: Parque Nacional Abiseo, Pampa del Cuy , 3550 m elev., ‘‘entre rocas,’’ Mar. 1, 1988 (D. Silva ‘‘et al.’’), 63 in MUSM .
Chibchea abiseo , new species Figures 732–737 View Figs
TYPES: Male holotype, 43 11♀ paratypes from Parque Nacional Abiseo , Pampa del Cuy, Dept. San Martín, Peru ; 3550 m elev., Mar. 10, 1988 (D. Silva), in MUSM .
ETYMOLOGY: Named for the type locality. The specific name is a noun in apposition.
DIAGNOSIS: Closely related to C. mateo , distinguished by the shape of the male cheliceral apophyses (fig. 732), the shape of the procursus (figs. 734–735), and the epigynum with the pair of posterior apophyses (fig. 736).
MALE (holotype): Total length 2.7, carapace width 1.3; leg 1: 19.3 (4.9+0.5+5.0 +6.8+2.1), tibia 2: 3.3, tibia 3: 2.5, tibia 4: 3.1; tibia 1 l/d: 44. Prosoma shape and eye pattern as in C. mateo and mapuche (cf. figs. 699, 723); distance PME-ALE about 70% of PME diameter. Carapace light brown, darker medially; ocular area and clypeus brown; sternum light brown, without humps; chelicerae brown, with pair of distal apophyses overhanging fangs (fig. 732). Palps as in fig. 733, with distinct retrolateral coxal apophysis, femur proximally with rounded retrolateral protrusion and distally with distinct ventral apophysis, procursus distally with black spine (figs. 734–735). Legs light brown with dark rings on femora (subdistally) and tibiae (proximally and subdistally); legs without spines, with curved hairs on tib- iae and metatarsi 1–3, with few vertical hairs; retrolateral trichobothrium of tibia 1 at 12%; tarsus 1 with 23 quite distinct pseudosegments. Opisthosoma about as high as long, shape as in C. uru (cf. fig. 657), dark greenish-gray with blackish spots dorsally and laterally; large, light brown genital plate.
VARIATION: Tibia 1 (4 male paratypes): 4.7–4.9.
FEMALE (paratypes): Tibia 1 (N = 10) 3.5– 3.9 (x¯ = 3.7). Very similar to male, including curved hairs on legs. Epigynum very distinctive, with two small apophyses posteriorly (fig. 736); internal genitalia with pair of large pore plates (fig. 737).
DISTRIBUTION: Known only from Parque Nacional Abiseo, Dept. San Martín, Peru.
MATERIAL EXAMINED: PERU: San Martín: Parque Nacional Abiseo: Pampa del Cuy : types above ; same locality and collector: Mar. 2–3, 1988 (2 vials), 23 5♀ 1 juvenile in MUSM ; Mar. 7, 1988, 23 1♀ in MUSM ; Parque Nacional Abiseo: Puerta del Monte , 3300 m elev., Mar. 4–8, 1988 (2 vials; D. Silva & A. Salirrosas), 4♀ in MUSM .
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