Chibchea ika, 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/03ACD276-8FF7-FF4D-FC87-FC9A44573BFC |
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treatment provided by |
Felipe |
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scientific name |
Chibchea ika |
| status |
sp. nov. |
Chibchea ika View in CoL , new species Figures 189 View Figs , 197 View Figs , 613 624 View Figs View Figs
TYPES: Male holotype, 93 10♀ paratypes from San Sebastian de Rabago (10°34'N, 73°36'W), Sierra Nevada de Santa Marta, Dept. César, Colombia GoogleMaps ; 2000 m elev., from dry banana leaves, Apr. 11 14, 1968 (B. Malkin), in AMNH .
ETYMOLOGY: The species name is a noun in apposition honoring the Ika Indians, a seminomadic people in northern Colombia.
DIAGNOSIS: Closely related to C. valle , distinguished by the spiraling bulbal apophysis (fig. 619), by the shape of the procursus (fig. 621) and by the shape of the apophyses on the male cheliceral fangs (fig. 620); from other congeners also by the shape of the epigynum (figs. 622 623).
MALE (holotype): Total length 2.3, carapace width 1.0; leg 1: 14.4 (3.5+0.4+3.7 +5.5+1.3), tibia 2: 2.6, tibia 3: 1.9, tibia 4: 2.5; tibia 1 l/d: 36. Habitus as in fig. 613. Carapace with distinct thoracic groove (fig. 615), brown, with broad median darker stripe and black central line, eight eyes on brown elevated ocular area (figs. 614 615); distance PME-ALE about 110% of PME diameter. Clypeus brown, sternum wide (fig. 616), light ochre-brown, slightly darker anteriorly; basal segments of chelicerae unmodified, but fangs with small apophyses (fig. 620). Palps as in figs. 617 618; coxa with distinct retro- lateral apophysis, femur with basal retrolateral protrusion, procursus simple (fig. 621), bulbal apophysis spiraling, with denticles (fig. 619); tarsal organ exposed. Legs light ochre-brown, with darker rings on femora (subdistally) and tibiae (proximally and subdistally); curved hairs on tibiae and metatarsi; without vertical hairs and spines; retrolateral trichobothrium of tibia 1 at 15%; tarsus 1 with ~ 20 pseudosegments. Opisthosoma gray-brown, with large dark spots dorsally, genital plate trapezoidal, brown; gonopore without epiandrous spigots; ALS with only one piriform gland spigot each (fig. 189).
VARIATION: Tibia 1 in 9 other males: 3.7– 4.3 (x¯ = 3.9).
FEMALE: Total length (N = 10) 1.9–2.9 (x¯ = 2.3); tibia 1 (N = 10) 2.4–3.1 (x¯ = 2.7). Habitus as in male. Epigynum brown, with anterior knob provided with pair of lateral indentations (figs. 622–623). Internal genitalia with pair of large pore plates and apparently anterior receptacle (fig. 624).
DISTRIBUTION: Known only from type locality.
MATERIAL EXAMINED: COLOMBIA: César: San Sebastian de Rabago : types above ; same locality and collector, all in AMNH: Apr. 1–6, 1968, 33 11♀ sifted from rotten banana leaves and ground debris ; Apr. 1–10, 1968, 13 3♀ some juveniles beaten from dry leaves; Apr. 11–14, 1968, banana plantation, 2♀ some juveniles beaten from dry foliage; Apr. 12, 1968, 13 from house.
NOTE: The distance between the indentations on the epigynal knob coincides with the distance between the apophyses on the male cheliceral fangs. Together with what is known about copulation in pholcids (Huber and Eberhard, 1997) this suggests that the male apophyses grasp the knob during copulation.
Chibchea valle , new species Figures 625–630 View Figs
TYPE: Male holotype from near Cali , Dept. del Valle, Colombia ; 1000 m elev., no date (W. G. Eberhard), in MCZ .
ETYMOLOGY: Named for the Colombian Departamento del Valle. The specific name is a noun in apposition.
DIAGNOSIS: Close relative of C. ika , distin- guished by the bulbal apophysis that is not spiraling (fig. 629), the procursus that is distally more slender (fig. 628), and the smaller apophyses on the cheliceral fangs (fig. 630).
MALE (holotype): Total length 2.4, carapace width 1.0; leg 1: 19.9 (4.7+0.3+4.9 +8.9+1.1), tibia 2: 3.2, tibia 3: 2.6, tibia 4: 3.3; tibia 1 l/d: 56. Habitus and prosoma shape as in figs. 625–627. Carapace ochre with brown marks medially and laterally (fig. 627), ocular area less elevated than in C. ika (fig. 625), and distance PME-ALE smaller (~ 60% of PME diameter). Clypeus with pair of broad brown bands (fig. 626), sternum light brown; chelicerae almost identical to C. ika , but with shorter apophyses on fangs (fig. 630). Palps very similar to C. ika (cf. figs. 617–618), but coxal apophysis narrower and basal femur apophysis longer; procursus and bulbal projection as in figs. 628– 629. Legs light ochre-brown, without markings; without spines, without curved and vertical hairs; retrolateral trichobothrium of tibia 1 at 9%; tarsus 1 with ~ 20 pseudosegments. Opisthosoma dark greenish, indistinct blackish spots dorsally, trapezoidal genital plate, dark bluish band between genital plate and spinnerets.
FEMALE: Unknown.
DISTRIBUTION: Known only from type locality.
MATERIAL EXAMINED: COLOMBIA: Dept. del Valle: near Cali: type above.
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