Research Article |
Corresponding author: Nadine Dupérré ( nadine.duperre@uni-hamburg.de ) Academic editor: Andreas Schmidt-Rhaesa
© 2017 Nadine Dupérré, Elicio Tapia.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Dupérré N, Tapia E (2017) The goblin spiders (Araneae, Oonopidae) of the OTONGA Nature Reserve in Ecuador, with the description of seven new species. Evolutionary Systematics 1: 87-109. https://doi.org/10.3897/evolsyst.1.14969
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The goblin spiders (Araneae, Oonopidae) of the Otonga Nature Reserve in the Chocó region of Ecuador are reviewed. A total of 1034 adult specimens were collected in 2014 and 23 morphospecies in eight different genera were identified from these collections. We describe seven new species: one in the genus Niarchos Platnick & Dupérré: Niarchos normani sp. n.; three in Scaphidysderina Platnick & Dupérré: Scaphidysderina chirin sp. n., S. lubanako sp. n., S. tsaran sp. n.; two in Bipoonops Bolzern: Bipoonops lansa sp. n., B. pilan sp. n.; and one in Reductoonops Platnick & Berniker: Reductoonops berun sp. n. The males of Niarchos baehrae Platnick & Dupérré, 2010 and Orchestina yanayacu Izquierdo, 2017 are described here for the first time. Natural history and collecting data are given for all morphospecies collected, including Niarchos barragani Platnick & Dupérré, 2010, Scaphidysderina cotopaxi Platnick & Dupérré, 2011, Scaphidysderina pinocchio Platnick & Dupérré, 2011, Orchestina otonga Izquierdo, 2017, Orchestina santodomingo Izquierdo, 2017, Orchestina truncata Wunderlich, 2004, Reductoonops otonga Platnick & Berniker, 2014, Reductoonops pichincha Platnick & Berniker, 2014, Paradysderina fusiscuta Platnick & Dupérré, 2011, Scaphiella pich Platnick & Dupérré, 2010 and Tinadyserina otonga Platnick et al., 2013. The data show that oonopid spiders are a major element of the arachnofauna present in the Chocó neotropical forests.
Goblin spiders, neotropical forests, biodiversity hotspots, taxonomy, new species
The goblin spiders (family Oonopidae) include 1747 species in 114 genera (
Morphologically, goblin spiders never cease to amaze. Strong sexual dimorphism has been observed in several genera: male clypeal horns or projections (e.g. Unicorn, some Scaphidysderina) (
At the beginning of the Planetary Biodiversity Inventory in 2006, a total of 472 species were known in 67 genera. An additional 1275 species and 47 new genera were described since the project started, making it the 8th most speciose spider family so far following the hyperdiverse spider groups such as jumping spiders (Salticidae). This is a prime example of how studies with a primary taxonomic focus can make a major contribution to the documentation of life on Earth.
The present paper has two aims: First, we document and describe the biodiversity of goblin spiders found in the Chocó forests of Ecuador. Second, we provide ecological data and discuss the importance of Oonopid spiders in the neotropical cloud forests of this country.
We collected spiders in Otonga Nature Reserve, situated at 4.5 km from San Francisco de Las Pampas (00°25°S; -79°00°W) in the Cotopaxi Province, Ecuador. Otonga is composed of three types of habitats: a premontane evergreen forest (“bosque simpreverde piemontano”) with an altitudinal range between 800–1300 m (Cerón 1999), a low evergreen montane forest (“bosque siempre verde montano bajo”) between 1300–1800 m, and a cloud forest (“bosque de neblina montano”) between 1800–3000 m (
Four collecting trips were made: rain season (24–30 May 2014), end of the rain season (1–7 July 2014), middle of the dry season (7–13 September 2014), and beginning of the rain season (3–8 November 2014). Methods comprised beating and sweeping techniques, microhabitat collecting, litter sifting and Berlese funnels, and hand collecting. Five lines of ten pitfalls traps each were installed on the South side of the mountain: pitfall line 1 (00.41941°S, 78.99607°W) at 1717m; pitfall line 2 (00.41433°S, 79.00035°W) at 1888m; pitfall line 3 (00.41994°S, 79.00623°W) at 1997 m; pitfall line 4 (00.41564°S, 79.00425°W) at 2105m; pitfall line 5 (00.42261°S, 79.5107°W) at 2225 m. Another five lines of ten pitfalls traps were also installed on the North side of the mountain, Las Damas (00.39506°S, 78.98100°W) at 1209 m. The pitfalls ran from May until September 2014 and were recovered every 10–12 days. Matching males and females in some congeneric species is sometimes uncertain, consequently males and females were matched on the base of several criteria: 1) collected together, 2) size and colour, 3) abundance.
Material examined is deposited in the following institutions:
Somatic morphology: ALE: anterior lateral eye; LE: lateral eye; PLE: posterior lateral eye; PME: posterior median eye. Genitalia of females: a: atrium; agp: anterior gentialic process; app: apodemic projection; d: duct; pgp: posterior gentialic process.
Genitalia of males: c: conductor; dap1: (dorsal apophysis 1); dap2: (dorsal apophysis 2); e: embolus; bp: basal process; dp: dorsal process; plp: prolateral process process of conductor; rlp: retrolateral process of conductor; vap: ventral apophysis.
A total of 1034 adult specimens were collected which comprised 23 morphospecies in eight different genera. One morphospecies could not be fitted into any of the extisting genera and probably belongs to an undescribed genus. Previous results of this study presented by
Niarchos cotopaxi Platnick & Dupérré, 2010.
Dorsal abdominal scutum present in males, absent in females; posterior eyes reduced in size; male palp with wide cymbium without distinct delimitation from the palpal bulb; male endites with posteriorly or externally directed anterior projections (Platnick and Dupérré 2010: 6).
Twenty-three species distributed in the Andean regions of Colombia, Ecuador and Peru (Platnick and Dupérré 2010).
Male holotype from Ecuador, Cotopaxi province, OTONGA Biological Reserve, 21.vi.2014, sifting moss, Berlese, E. Tapia, C. Tapia, N. Dupérré (
In honor of Dr. Norman Platnick, curator emeritus at the American Museum of Natural History, for his innovative and comprehensive work on the spider family Oonopidae.
This species most resemble Niarchos palenque Platnick & Dupérré, 2010, but differs from all species of the genus by the horizontally directed anterior projections of the male endites (Fig.
Male (holotype). Total length: 1.8; carapace length: 1.3; carapace width: 0.9.
COLORATION: Carapace orange (Fig.
Female. Unknown.
Only known from the type locality.
The species belongs to the palenque-group Platnick & Dupérré, 2010, based on the bipartite embolar region with a sclerotized basal embolus and a translucent distal portion.
Female, Platnick and Dupérré (2010: figs 134–143).
Female holotype from Ecuador, Cotopaxi Province, OTONGA Biological Reserve (0°25’11”S, 78°59’41”W) 1625m, 08.xii.2009, hand collecting from forest litter, B. Baehr, Niarchos Exped., (
ECUADOR: Cotopaxi Province: OTONGA Biological Reserve, 08–21.vi.2014, 2♂1♀, sifting moss, Berlese, E. Tapia, C. Tapia, N. Dupérré (DTC); 04–07.ix.2104, 4♂, sifting litter, Berlese, E. Tapia, C. Tapia, N. Dupérré (
Males are distinguished from most species by the large up-right embolus accompanied by two dark projections (Fig.
Male. Total length: 2.1; carapace length: 1.4; carapace width: 1.0.
COLORATION: Carapace orange; sternum, chelicerae, endites, labium, legs, and palpi pale orange; dorsal and ventral scuta pale orange, soft portions of abdomen white. CEPHALOTHORAX: Carapace without any pattern, elongate oval in dorsal view; pars cephalica slightly elevated in lateral view, entire surface with low granulation; fovea absent. Clypeus margin slightly rebordered, vertical in lateral view. Sternum longer than wide, surface finely reticulate, microsculpture covering entire surface. Labium triangular, not fused to sternum, anterior margin indented at middle (Fig.
LEGS: Leg formula: 4123; leg spination: tibiae IV v0-0-1p. ABDOMEN: Cylindrical; book lung covers large; posterior spiracles connected by groove; dorsal scutum present, strongly sclerotized, covering most of dorsum but not fused to epigastric scutum, surface finely reticulate; epigastric scutum strongly sclerotized, surrounding pedicel, fused to long, strongly sclerotized postepigastric scutum; postepigastric scutum occupying most of the venter; supraanal scutum absent; spinneret scutum reduced. GENITALIA: Male palp not strongly sclerotized; cymbium ovoid in dorsal view, completely fused with bulb; bulb elongated; embolus dark, accompanied by two dark pointed projections, one basal and one apical (Fig.
All specimens were collected between 1625 and 2225m, by pitfall or sifting mosses and litter.
Only known from the type locality.
In Platnick and Dupérré (2010), Niarchos baehrae was placed in the cotopaxi-group based on the female genitalic features (globose, tentlike anterior receptaculum). In light of the discovery of the male, we proposed that the species belongs in the loja-group instead. The males of Niarchos baehrae does not share the characteristic retroventral projection of the palpal bulb, but an elongated embolus originating distally on the bulb and protruding far beyond the bulb, characteristic of the male of the loja-group.
ECUADOR: Cotopaxi Province: OTONGA Biological Reserve, 24–30.v.2014, 18♂2♀, sifting litter, Berlese, E. Tapia, C. Tapia, N. Dupérré (
In our study specimens were collected between 1717 and 2225m. Previous records from Platnick and Dupérré (2010) suggest that the species occur from 700m to 2150m.
Pichincha and Cotopaxi Provinces (Ecuador).
Scaphidysderina palenque Platnick & Dupérré, 2011.
Highly crenulated sternum; lacking spinneret scutum and a groove connecting either the anterior or posterior spiracles (Platnick and Dupérré 2011: 5).
Twenty species distributed across Colombia, Ecuador and Peru.
Male holotype and female allotype from Ecuador, Cotopaxi Province, OTONGA Biological Reserve, Las Damas (00.39506°S, 78.98100°W) 1209m, 16.viii.–03.ix.2014, pitfall, E. Tapia, C. Tapia, N. Dupérré (
ECUADOR: Cotopaxi Province: OTONGA Biological Reserve, Las Damas (00.39506°S, 78.98100°W) 1209m, 28.vi.–12.vii.2014, 3♂2♀, sifting litter with Berlese extraction, E. Tapia, C. Tapia, N. Dupérré (DTC); 12–23.vii.2014, 21♂13♀, pitfall, E. Tapia, C. Tapia, N. Dupérré (
The specific epithet is a noun in apposition taken from the Tsafi´ki languange, meaning “narrow” for the slender male palpal bulb.
Males are distinguished by their short, twisted basal process of the embolus (Fig.
Male (holotype). Total length: 2.2; carapace length: 1.1; carapace width: 0.9.
COLORATION: Carapace and sternum red-brown; mouthparts orange-brown; abdominal scuta red-brown, abdominal soft portions white; legs orange-brown. CARAPACE : Carapace broadly oval; covered with low tubercles surrounded by U-shaped smooth area; fovea absent. Clypeus margin rebordered, with median projection. Sternum wider than long, not fused to carapace, surface highly crenulated. Chelicerae slightly divergent, anterior face with swelling; with one promarginal tooth and dorsally directed spine (Fig.
Female. Total length: 3.1; carapace length: 1.3; carapace width: 1.0.
COLORATION: As in male. CARAPACE: As in male. Clypeus margin rebordered, with small median projection. Sternum as in male. Chelicerae not divergent, without swelling; with one promarginal tooth. Labium triangular, not fused to sternum, anterior margin indented at middle. Endites distally not excavated. EYES: As in male. LEG: As in male. Palp without claw. ABDOMEN: Ovoid; book lung covers large, ovoid; posterior spiracles not connected by groove; dorsal scutum absent, postepigastric scutum strongly sclerotized, almost semicircular, fused to epigastric scutum; spinneret scutum absent, supraanal scutum absent. GENITALIA: Atrium oval; epigastric scutum with an X-shaped marking (internal genitalia visible by transparence) (Fig.
All specimens were collected between 1209 and 1888m. Most specimens were collected from mid-June to mid-July, and mid-August to early September.
Only known from the type locality.
Male holotype and female allotype from Ecuador, Cotopaxi Province, OTONGA Biological Reserve, Las Damas (00.39596°S, 79.98100°W) 1209m, 28.vi.–12.vii.2014, pitfall, E. Tapia, N. Dupérré (
ECUADOR: Cotopaxi Province: OTONGA Biological Reserve, (00.41433°S, 79.00035°W) 1888m, 08–21.vi.2014, 2♂2♀, pitfall, E. Tapia, C. Tapia, N. Dupérré (DTC); 16.viii.–05.ix.2014, 1♂, pitfall, E. Tapia, C. Tapia, N. Dupérré (
The specific epithet is a noun in apposition taken from the Tsafi´ki languange, meaning ‘red devil’.
Males are distinguished from all species by their very long dorsal, basally pointing embolic process (Fig.
Male (holotype). Total length: 2.3; carapace length: 1.4; carapace width: 1.1.
COLORATION: Carapace and sternum reddish (Figs
CARAPACE: Carapace broadly oval; covered with low tubercles; fovea absent (Fig.
Scaphidysderina lubanako sp. n. Male (9, 10). Female (11, 12). 9. Carapace, anterior view. 10. Palp, ventral view. 11. Epigynal region, ventral view. 12. Internal genitalia, dorsal view.
Female. Total length: 2.9; carapace length: 1.3; carapace width: 1.1.
COLORATION: As in male, except abdomen withish (Fig.
All specimens were collected between 1209 and 1997m.
Only known from the type locality.
Male holotype and female allotype from Ecuador, Cotopaxi Province, OTONGA Biological Reserve, (00.41564°S, 79.00425°W) 2105m, 24.v.–08.vi.2014, pitfall, E. Tapia, C. Tapia, N. Dupérré (
Cotopaxi Province: OTONGA Biological Reserve (00.41994°S, 79.00623°W) 1997m, 08–21.vi.2014, 1♂, pitfall, E. Tapia, C. Tapia, N. Dupérré (
The specific epithet is a noun in apposition taken from the Tsafi´ki languange, meaning ‘beautiful’.
Males are distinguished from all species by their spine-like embolic basal process (Fig.
Male (holotype). Total length: 2.2; carapace length: 1.4; carapace width: 1.0.
COLORATION: Carapace and sternum red-brown; mouthparts orange-brown; abdominal scuta red-brown, abdominal soft portions white; legs orange-brown. CARAPACE: Carapace broadly oval; covered with low tubercles surrounded by U-shaped smooth area; fovea absent. Clypeus margin rebordered, without median projection. Sternum wider than long, not fused to carapace, surface highly crenulated (Fig.
Female. Total length: 3.0; carapace length: 1.4; carapace width: 1.1.
COLORATION: As in male. CARAPACE: As in male. Clypeus margin rebordered, with small median projection. Sternum as in male. Chelicerae not divergent, without swelling; with one promarginal tooth. Labium triangular, not fused to sternum, anterior margin deeply indented at middle. Endites distally not excavated. EYES: As in male. LEG: As in male. Palpal claw absent. ABDOMEN: Ovoid; book lung covers large, ovoid; posterior spiracles not connected by groove; dorsal scutum absent; postepigastric scutum strongly sclerotized, almost semicircular, fused to epigastric scutum; spinneret scutum absent, supraanal scutum absent. GENITALIA: Atrium trapezoidal (Fig.
All specimens except one were collected between 2105–2225m, predominantly from mid-August to the beginning of December.
Only known from the type locality.
ECUADOR: Cotopaxi Province: OTONGA Biological Reserve, 21.vi.–02.vii.2014, 1♂3♀, pitfall, E. Tapia, C. Tapia, N. Dupérré (
In our study, all specimens except one were collected between 2105 and 2225m. Specimens in a previous study were collected between 300 and 3865m (Platnick and Dupérré 2011).
Cotopaxi, Pichincha, Los Ríos, Manabí and Santo Domingo de los Tsáchilas Provinces (Ecuador).
ECUADOR: Cotopaxi Province: OTONGA Biological Reserve, Las Damas (00.39506°S, 78.98100°W) 1209m, 28.vi.–12.vii.2014, 6♀, pitfall, E. Tapia (
Only few specimens were collected in this study, all at 1209m. Based on Platnick & Dupérré 2011, specimens were found between 200 and 2800m.
Pichincha, Cotopaxi, Los Ríos and Manabí Provinces (Ecuador).
Reductoonops yasuni Platnick & Berniker, 2011.
Clypeus flattened; four spinnerets; often with only two eyes; four pairs of deep grooves on the sides of the sternum, the most anterior pair of which demarcate a short anterior portion of the sternum (Platnick and Berniker 2011: 6).
Thirty-five species distributed in Mexico, Costa Rica, Jamaica, Curaçao, Martinique, Panama, Colombia, Ecuador, Peru and Chile.
Male holotype and male paratype from Ecuador, Cotopaxi Province, OTONGA Biological Reserve, 04–07.ix.2014, sifting litter, Berlese, E. Tapia, C. Tapia, N. Dupérré (
Cotopaxi Province: OTONGA Biological Reserve, 24–30.v.2014, 1♂, sifting litter, Berlese, E. Tapia, C. Tapia, N. Dupérré (
The specific epithet is a noun in apposition taken from the Tsafi´ki languange, meaning “fish hook” for the shape of the dorsal apophysis of the male palp.
Males and females are similar to R. hedlite and R. tandapi by the presence of two large, reflective eyes. Males are distinguished from R. tina Platnick & Berniker, 2011 by their double hook-shaped dorsal apophysis (dap2), simple in the latter species (Platnick and Berniker 2011; fig 392); from R. tandapi Platnick & Berniker, 2011 by the spine-like dorsal apophysis (dap1), bidentate in the later (Platnick and Berniker 2011; fig 367). Females are distinguished by their elongated oval, truncated apically anterior genitalic process (Fig.
Male (holotype). Total length: 0.9; carapace length: 0.5; carapace width: 0.3.
COLORATION: Carapace, sternum, mouthparts beige, without pattern; abdomen beige, without pattern; legs pale beige (Fig.
Reductoonops berun sp. n. Male (18, 19). Female (20, 21). 18. Palp, retrolateral view. 19. Detail of embolus and adjacent structures, dorsal view. 20. Epigynal region, ventral view. 21. Internal genitalia, dorsal view.
Female. Total length: 1.1; carapace length: 0.6; carapace width: 0.3.
COLORATION: As in male. CARAPACE, EYES and ABDOMEN: As in male.
LEGS: As in male; female palp without claw. GENITALIA: Anterior genitalic process somewhat visible through the epigastric scutum, epigastric scutum margin with a wide trapezoid sclerotized area medially (Fig.
Specimens were collected by sifting litter or mosses.
Only known from the type locality.
ECUADOR: Cotopaxi Province: OTONGA Biological Reserve, 24–30.v.2014, 1♂3♀, sifting litter, Berlese, E. Tapia, C. Tapia, N. Dupérré (
Most specimens were collected by sifting litter or mosses.
Known from Santo Domingo de los Tsáchilas and Cotopaxi provinces (Ecuador).
ECUADOR: Cotopaxi Province: OTONGA Biological Reserve, 04–07.ix. 2014, 2♀, sifting litter, Berlese, E. Tapia, C. Tapia, N. Dupérré (
Pichincha and Cotopaxi Provinces (Ecuador).
Bipoonops pucuna Bolzern, 2014.
Carapace with an indistinct, dark spot on the posterior half. Abdomen highly patterned. Dorsal abdominal scutum present in males with dorsal scutum anteromedially fused to the epigastric scutum, absent in females. Leg spines present. Males cymbium and bulb not fused; bipartite conductor. Females differ in having a very short postepigastric scutum surrounding the pedicel, almost as wide as, not fused to the epigastric scutum, and in lacking small lateral sclerites at the epigastric area (
Five species found only in Ecuador.
Male holotype from Ecuador, Cotopaxi Province, OTONGA Biological Reserve (00.41433°S, 79.0035°W) 1888m, 19.ix.–02.x.2014, pitfall, E. Tapia, C. Tapia, N. Dupérré (
Cotopaxi Province: OTONGA Biological Reserve (00.41941°S, 78.98607 °W) 1717m, 24–30.v.2014, 3♂, pitfall, E. Tapia, C. Tapia, N. Dupérré (
The specific epithet is a noun in apposition taken from the Tsafi´ki languange, meaning ‘orange’.
Males are distinguished from all species by the short, strongly curved embolus and the small waved prolateral extension of the conductor (Fig.
Male (holotype). Total length: 1.5; carapace length: 0.7; carapace width: 0.6.
COLORATION: Carapace orange-brown with darkened spot on posterior half of carapace (Fig.
Female. Unknown.
Only a few specimens were collected but all between 1717 and 1888m.
Only known from the type locality.
Male holotype from Ecuador, Cotopaxi Province, OTONGA Biological Reserve (00.41433°S, 79.0035°W) 1888m, 19.ix.–02.x.2014, pitfall, E. Tapia, C. Tapia, N. Dupérré (
Cotopaxi Province: OTONGA Biological Reserve, 24–30.v.2014, sifting litter, Berlese, 1♂, pitfall, E. Tapia, C. Tapia. N. Dupérré (
The specific epithet is a noun in apposition taken from the Tsafi´ki languange, meaning ‘painted’.
Males are distinguished by the large rectangular prolateral process of the conductor (Fig.
Male (holotype). Total length: 1.5; carapace length: 0.7; carapace width: 0.6.
COLORATION: Carapace pale orange-brown with darkened spot on posterior half of carapace; sternum, mouthparts pale orange-brown; dorsal abdominal scutum pale orange-brown; legs pale orange; abdomen soft portion withish with indistinct wide netlike. CEPHALOTHORAX: Broadly oval in dorsal view, pars cephalica slightly elevated in lateral view; surface of elevated portion and sides of pars cephalica finely reticulate; fovea absent. Clypeus margin unmodified, straight in frontal view, vertical in lateral view. Sternum as wide as long, not fused to carapace, surface smooth. Labium rectangular, fused to sternum, not indented at middle. Endites anterior part with anteromedian projection with 5-6 setae. Chelicerae slightly divergent; cheliceral teeth not observed. EYES: Six eyes, well developed, all subequal, ALE oval, PME squared, PLE oval; posterior eye row straight from above; ALE separated by their radius, ALE-PLE touching, PME touching throughout most of their length, PLE-PME touching. ABDOMEN: Ovoid; book lung covers large, ovoid; only anterior spiracles connected by groove. Dorsal scutum present, strongly sclerotized, without color pattern, covering more than of abdomen length and most of abdomen width, anteriorly fused to epigastric scutum, middle surface, sides smooth. Epigastric scutum strongly sclerotized, surrounding pedicel entirely. Postepigastric scutum strongly sclerotized covering to nearly full abdomen length, almost semicircular, completely fused to epigastric scutum. Spinneret scutum present, reduced to two elongated platelets, supraanal scutum absent. LEGS: leg formula 4123. LEG SPINATION: Femur I p0-1-1, tibia I v2-2-2-2, metatarsus I v2-2-2; femur II p0-0-1, tibia II v2-2-2-2, metatarsus II v2-2-2. GENITALIA: Male palp not strongly sclerotized (Fig.
Female. COLORATION: Overall as in male, except abdomen dorsally and ventrally with indistinct netlike pattern. CEPHALOTHORAX and EYES: overall as in male. ABDOMEN: Oval; book lung covers large, ovoid; epigastric and postepigastric scuta weakly sclerotized, not fused together. LEGS: As in male. Female palp without claw. GENITALIA: Epigynum, anterior genitalic process visible through the scutum (Fig.
Specimens were collected by sifting litter and by pitfall trap, between 1997 and 2225m.
Only known from the type locality.
Orchestina pavesii (Simon, 1873).
Males and females with swollen fourth femur; H-shaped eye arrangement, recurved PER; high clypeus; tarsal organs pattern (4-4-3-3); legs lacking spines. Male palpal tibia enlarged, papal bulb with conspicuous seminal duct (
Ninety-three species across the USA, Mexico, Guatemala, Costa Rica, Panama, Jamaica, Haiti, Dominican Republic, Trinidad and Tobago, Venezuela, Colombia, Ecuador, Peru, Brazil, Bolivia, Chile and Argentina.
Cotopaxi Province: OTONGA Biological Reserve, 04–07.ix.2014, 2♂1♀, moss, Berlese, E. Tapia, N. Dupérré (
All specimens were collected from mosses.
Only known from Santo Domingo de los Tsáchilas and Cotopaxi Provinces (Ecuador).
Cotopaxi Province: OTONGA Biological Reserve, 24.v.–08.vi.2014, 3♂, sifting moss in trees, Berlese, E. Tapia, N. Dupérré (
Only found in mosses.
Costa Rica, Colombia and Ecuador.
Cotopaxi Province: OTONGA Biological Reserve (00.41433°S, 79.0035°W) 1888m, 15.x.2014, 1♂3♀, moss in trees 0.5–3m from ground, E. Tapia, N. Dupérré (
Male are easily recognized by their elongated chelicerae (Fig.
Orchestina yanayacu Izquierdo, 2017, male 28. Carapace, anterior view. 29. Male palp, retrolateral view.
30. Male Niarchos normani sp. n., dorsal view. 31. Male Scaphidysderina lubanako sp. n., frontal view. 32. Male Scaphidysderina lubanako sp. n., dorsal view. 33. Female Scaphidysderina lubanako sp. n., dorsal view.
Male. Total length: 1.4; carapace length: 0.60; carapace width: 0.5.
COLORATION: Carapace light yellow, clypeus brown; chelicerae brown; sternum and endites light yellow; labium light brown; abdomen with indistinct gray pattern; legs light yellow.
CEPHALOTHORAX: Carapace ovoid in dorsal view, smooth; pars cephalica flat, pars thoracica sloping gradually. Clypeus low (1x PME), margin unmodified, sloping forward. Sternum as wide as long. Labium rectangular. Endites elongated. Chelicerae straight, long, without teeth (Fig.
Found in mosses and epiphytes.
Ecuador: Napo and Cotopaxi Provinces.
Male and female a tentatively match as they were found in the same extraction sample, however on several occasions we found up to three Orchestina species in the same sample.
Cotopaxi Province: OTONGA Biological Reserve, 24.v.–08.vi.2014, 2♀, moss in trees, E. Tapia, N. Dupérré (
Found in mosses.
Only known from Santo Domingo de los Tsáchilas and Cotopaxi provinces (Ecuador).
ECUADOR: Cotopaxi Province: OTONGA Biological Reserve, 24.v.–08.vi.2014, 2♂1♀, siftig litter, Berlese, E. Tapia, C. Tapia, N. Dupérré (
Specimens were collected from 1209 to 2225m, by sifting litter or by pitfall trap, in early July and mid-August to mid-September.
Cotopaxi and Pichincha Provinces (Ecuador).
ECUADOR: Cotopaxi Province: OTONGA Biological Reserve, Las Damas, (00.39506°S, 78.98100°W) 1209m, 28.vi.–12.vii.2014, 2♂1♀, sifting litter, Berlese, E. Tapia, (
Most specimens were collected below 1888m, by sifting litter or pitfall trap.
Santo Domingo de los Tsáchilas and Cotopaxi Provinces (Ecuador).
ECUADOR: Cotopaxi Province: OTONGA Biological Reserve, 24–30.v.2014, 2♂1♀, hand collecting, 2♂2♀, beating, 1♂1♀, sifting litter, E. Tapia, C. Tapia, N. Dupérré (
Most specimens were collected between mid-August to mid-September.
Specimens were collected from 1480–2250m.
Pichincha and Cotopaxi Provinces (Ecuador).
ECUADOR: Cotopaxi Province: OTONGA Biological Reserve, Las Damas (00.39506°S, 78.98100°W) 1209m, 28.vi.–12.vii.2014, 1♂, pitfall, E. Tapia, N. Dupérré (
Cotopaxi and Pichincha Provinces (Ecuador).
Cotopaxi Province: OTONGA Biological Reserve, 24.v.–08.vi.2014, 1♂1♀, hand-collected, E. Tapia, C. Tapia, N. Dupérré (
Material examined.Cotopaxi Province: OTONGA Biological Reserve, Las Damas (00.39506°S, 78.98100°W) 1209m, 28.vi.–12.vii.2014, 7♂2♀, 23.vii.–05.viii. 2014, 1♂7♀, 05–16.viii.2014, 6♂7♀, pitfall, E. Tapia (
As stated by Dupérre and Tapia (2016), there have been few spider biodiversity studies in neotropical premontane-, low evergreen- and cloud forests (
Our results also show that the genus Scaphidysderina has a very interesting pattern of altitudinal distributions. The three most abundant species Scaphidysderina chirin sp. n., and S. lubanako sp. n., were collected respectively between 1209–1888m and 1209–1997m and are therefore found in the low evergreen montane forest, while S. tsaran sp. n. was only collected between 2105–2225m in the cloud forest, and consequently could represent a cloud forest specialist. A similar pattern was also discovered in the family Ctenidae (
The forests of the Chocó region of Ecuador are under heavy threat from farming and logging (
Thanks to the National Geographic Society for funding “Spider biodiversity of the cloud forest in the Chocó region of Ecuador” project through the Waitt Grants program. Thanks to Dr. Danilo Harms for support, to Dr. Giovanni Onore and Dr. Luis Coloma for friendship and technical support, and to Italo Tapia, César Tapia and Carmen Caisaguano for their help in collecting. Thanks to Mathias Izquierdo and an anonymous referee for positive comments that help improve the manuscript. The collection of specimens was done under the permit (Nº 006-14 IC-FAU-DNB/MA) of the Ministerio de Ambiente, Quito, Ecuador.