Porteria bunnyana Morrill & Crews & Esposito & Ramírez & Griswold 2023, SP. NOV

Autor: Morrill, Elizabeth, Crews, Sarah, Esposito, Lauren, Ramírez, Martín J., Griswold, Charles
Rok vydání: 2023
Předmět:
DOI: 10.5281/zenodo.8004935
Popis: PORTERIA BUNNYANA SP.NOV. FIGS 17C, F, 44–48 Zoobank registration: urn: lsid: zoobank. org:act: 1B86C5FA-4F0D-4A06-A187-1E50BCCAAB15. Types: Holotype male from Chile, Region IX de la Araucanía, Cautín Province, Pucón, November 6– December 1, 1989, S.A. Marshall, ‘ dung traps near lake’ (CASENT9044659), deposited in AMNH. Two paratype females from Pucón (CASENT9055695), same data. Etymology: Named after a street dog from Pucón, the type locality for this species, who Liz met on her first trip to Chile. We named her ‘Bunny’ because of her stumpy tail and hoppy nature. We watched the sunset together on the beach of Lago Villarrica. This species is dedicated to all the wonderful street ‘perros’ and ‘gatos’ of Chile. Diagnosis: Males with thick, hook-shaped DTA (as seen in lateral views, Fig. 45B, D, E) curving apicad; RTA extending from tibia at a roughly 45° angle, almost tooth like and directed toward the palp’s apex (Fig. 46B), LRTA bent, projecting ventrally perpendicular to frontal plane (Figs 45E, 46C, D, 47C); embolus base large, tip gradually tapered along prolateral margin of bulb (Figs 45B, D, 46A, B). Epigyne (Figs 45E, F, 48) with large median scape on margin of hood (Fig. 48A), lacks fleshy bulge at the back of the atrium; vulva with right and left Base 1’s almost touching, atrium ventral wall smooth, anterior margin forming two symmetrical humps outlining the spermatheca; copulatory duct straight (Figs 45G, 48B). Description: Male: based on CASENT9044659, from Pucón. Markings as in Figure 44 A-C, two yellow anterolateral lines and two pairs of median spots on dorsum of abdomen. Total length 6.16. Carapace length 1.27 times width. Clypeus height 2.25 times AME diameter. ALE diameter 1.63 times AME diameter. Chelicera length 6.25 times clypeus height. Sternum length 1.03 width. Femur I 1.36 times carapace length. Leg formula 4123. Cymbium length 3.18 times length of bulb. Cheliceral promargin with six teeth. Feathery hairs present on legs and palps. Leg spination as follows: palp: femur d1-1-2, patella d1-1, tibia d0-0-1, tarsus r0-0-1; leg I: femur d1-0-2-3, patella d1-1, tibia p0-0-1-0, v2-0-2, metatarsus p0-0-1, v2-2-2; leg II: femur d2-3-1(p)-2, patella d1-1, tibia d1(r)-1(p)-1(p)-0, v2-2-2, metatarsus d0-2-2, v2-2-2; leg III: femur d2-3- 2-2, patella d1-1, tibia d1(r)-0-1-0, p0-1-1-0, r0-0-1-0, v2-1(p)-2, metatarsus d2-2-2, v2-2-2, tarsus r0-1; leg IV: femur d1-1-2-2, patella 1-1, tibia d1(r)-0-1-0, p0-1- 1-0, r0-1-1-0, v1-1-0, metatarsus d1-1-2, p1-0-1-0, r1-0- 1-1, v1-1-2, tarsus 0-1. Male palp as in Figures 45 to 47, with four tibial apophyses: RTA extending from tibia at a 45° angle, terminating in an acute hook (Fig. 45E); LRTA bent, projecting ventrally, perpendicular to frontal plane (Figs 45E, 47C); DTA dark brown, hook like in lateral view (Fig. 45A); VTA a dark, flattened mound (Fig. 45D). Paracymbium present on the retroapical side of bulb, knob like (Fig. 46C). Tegulum dark, with large median concavity visible in retrolateral view (Fig. 46B, C). Conductor twisted tightly, bisecting the bulb, terminus blunter than in P. ajimayo. Embolus base dark brown and shield like; anterior margin of embolus base adjacent to narrowing embolus notched (Fig. 47A). Embolus tapered from embolus base, following prolateral margin of bulb, curved into the conductor distally (Fig. 6A, B). Leg measurements: leg I 14.71 (4.15, 5.1, 3.18, 2.28); leg II 13.20 (3.69, 4.22, 3.35, 1.94); leg III 12.26 (3.42, 3.69, 3.55, 1.61); leg IV 16.28 (4.29, 4.82, 5.03, 2.14); palp 7 (3.35, 2.55, –, 1.1). Variation: (N = 2). Total length 4.69–6.16. Carapace length 1.30–1.34 times width. Clypeus height 2.14–2.16 times AME diameter. ALE diameter 1.57–1.67 times AME diameter. Chelicera length 5–7.08 times clypeus height. Sternum 1–1.04 times as long as wide. Femur I 1.30–1.32 times carapace length. Cymbium length 2.41–2.87 times length of bulb. Cheliceral promargin with four to five teeth and one to two denticles. Description: Female: based on paratype CASENT9055695, from Pucón. Markings as in Figure 44 D-F, dorsum of abdomen with bright yellow anterolateral lines with consecutive yellow patches posterior to those; two pairs of median spots, with faded chevrons posteriorly. Total length 6.8. Carapace length 1.33 times width. Clypeus height 2.29 times AME diameter. ALE diameter 1.43 times AME diameter. Chelicera length 5.75 times clypeus height. Sternum length 1.07 times width. Femur I 1.07 times carapace length. Leg formula 4123. Cheliceral promargin with five teeth and two denticles. Leg spination as follows: palp: femur d1-1-3, patella d1-1, tibia d1-1, p1-0, tarsus d1-0, p1-1, r0-1-1, v2-3-2; leg I: femur d1-1(r)-1(r)-1-1(p)-2, patella d1-1, tibia d1(r)-0-0, p0-0- 1-0, v2-2-2, metatarsus p0-0-1, r0-0-1, v2-2-1; leg II: femur d3-3-2-2, patella d1-1, tibia d1(r)-0-0, p0-1-1-0, v2-2-2, metatarsus d0-0-1, p0-1-2, r0-1-1, v2-2-1, leg III: femur d1(p)-1-3-2-2, patella d1-1, tibia d1(r)-0- 1-0, p0-1-1-0, r0-1-1-0, v2-1(r)-2, metatarsus d2-0-2, p0-1-1, r0-1-1, v2-2-1, tarsus r0-1, v0-0-1; leg IV: femur d1-1(p)-1-2-2, patella d1-1, tibia d1(r)-0-1-0, p0-1-1-0, r0-1-1-0, v2-1(p)-2, metatarsus d2-0-2, p0-1-1, r0-1-1- 1, v2-1-1, tarsus r0-1, v0-3. Epigyne as in Figures 45F, G and 48, large, sclerotized plate with a deep, arched cavity (Fig. 48A). Scape on middle of anterior margin of hood (arch) directed posteriad, tapered and tooth like, often obscured by thick setae. Two swollen fleshy lobes posterior to cavity divided by a dark, sclerotized line (Fig. 45C). Lateral margins surrounding cavity scalloped. Copulatory openings indistinguishable within large atrium (Figs 45E, 48A). Vulva (Figs 45G, 48B) with short to medium length copulatory ducts extended posterior to anterior in a relatively straight path to spermatheca stalk, just posterior to head. Stalks relatively straight up and down, located mesad to Base 2. Head of spermatheca with pores and long glands, not well differentiated from stalk, appearing as small bulge. Pores present on lateral sides of stalk and Bennett’s gland pore present on Base 1 between Base 1 and 2 (fertilization ducts may obscure this partially). Fertilization ducts attached to Base 1 posterior margin. Base 2 surrounded by copulatory duct on lateral side, by stalk mesad, large bulging protuberance; Base 1 more amorphous in shape but identified by Bennett’s gland pore and fertilization duct attachments. Atrium ventral wall almost heart shaped with symmetrical rounded margins converging to a point and folding on the median line. Leg measurements: leg I 11.75 (3.20, 4.00, 2.75, 1.80); leg II 10.65 (3.05, 3.45, 2.60, 1.55); leg III 10.05 (2.85, 3.10, 2.70, 1.40); leg IV 13.05 (3.55, 4.10, 3.65, 1.75); palp 4.50 (1.40, 1.60, –, 1.50). Variation: (N = 2). Total length 4.89–6.83. Carapace length 1.38–1.39 times width. Clypeus height 2.40– 2.43 times AME diameter. ALE diameter 1.43–1.50 times AME diameter. Chelicera length 5.33 times clypeus height. Sternum length 1.15–1.23 times width. Femur I 1.00–1.07 times carapace length. Cheliceral promargin with four to five teeth and denticles. Distribution: South and Central Chile from coast to Andes; collected frequently near Pucón and Villarrica but also found farther north near Temuco and as far south as Puerto Montt. One specimen collected from Isla Chiloé (Fig. 76E). Other material examined: Region IX de la Araucania: N a h u e l b u t a N at i o n a l Pa r k, n e a r Pe h u e n c o campground, 25.8 km W Angol, S37º 49.867’, W73º00.441’, elev. 1097 m, January 25, 2013, E. Morrill and D. Faber, ‘general collecting along stream in native forest dominated by Nothofagus ’, one male, one female, CAS (CASENT9055625); Nahuelbuta National Park, Pehuenco campground, 27 km W Angol, S37º49.720’, W73º00.452’, elev. 1100 m, January 25–27, 2013, H. Wood, L. Macaulay, E. Morrill, D. Faber and C. Griswold, ‘general collecting in Araucaria / Nothofagus forest’, six females, CAS (CASENT9053808, 9055706); 15 km NE Villarrica, Flor de Lago, elev. 300 m. December 14, 1984 - February 10, 1985, S. and J. Peck, ‘ Nothofagus forest,’, FIT, 11 males, one female AMNH (CASENT9044645, 9044674, 9044676, 9044716); Princesa, 20 km west of Curacautín, elev. 1000 m, December 12, 1984 - February 10, 1985, S. and J. Peck, ‘ Nothofagus forest,’ four males, one female, AMNH (CASENT9044650); Cautin, Río Huachitivo, January 10, 1993, T. Cekalovic, one male, AMNH (CASENT9044658); Estero Chaulco near Río Huachitivo, October 3–31, 1992, T. Cekalovic, pitfalls, one female, AMNH (CASENT9044696); Ñielol National Park, near Temuco, elev. 250 m, December 14–20, 1982, A. Newton and M. Thayer, ‘site 652 carrion traps (squid); native forest remnant with Nothofagus ’, one male, AMNH (CASENT9044660); Lago Caburga, 21 km NE Pucón, elev. 600 m, December 15, 1984 - February 10, 1985, S. and J. Peck, ‘mixed forest remnant’, six males, one female, AMNH (CASENT9044683); Molco, Villarrica, January 24, 1988, T. Cekalovic, one female, AMNH (CASENT9044694); Pucón, December 14, 1988, V. and B. Roth, three females, CAS (CASENT9020914); Pucón, November 6 - December 1, 1989, S.A. Marshall, ‘pan traps in lakeside debris’, one male, AMNH (CASENT9044655), ‘peninsula, hilltop beech’, two males, AMNH (CASENT9044667), ‘near lake in drift’, two males, AMNH (CASENT9044671), ‘near lake’, four males, AMNH (CASENT9044677), ‘mature forest’, three males, AMNH (CASENT9044681); Pucón Peninsula, 0.5 km W Pucón, S39º16.554’, W71º59.228’. elev. 245 m, January 24, 2013, E. Morrill, D. Faber and C. Griswold, ‘general collecting in disturbed native forest’, one male, seven females, CAS (CASENT9055665, 9055695,); XIV Región De Los Ríos: Reserva Costera Valdiviana, 15 km WSW Corral, S39º58.173’, W73º34.225’, elev. 15 m, January 23, 2013, E. Morrill and D. Faber, ‘general collecting at night in native forest’, one male, CAS (CASENT9055709); X Región De Los Lagos: Isla Chiloé, 5 km SW of Chonchi, February 19, 1997, T. Cekalovic, one female, AMNH (CASENT9044713). Notes: Females of this species are difficult if not impossible to differentiate from those of P. contulmo, and there could be more cryptic species within this group. Males and females in Pucón have been collected together and have been more frequently collected together than P. bunnyana females and males of other species. When P. bunnyana females have been collected with P. correcaminos, a sympatric species, it has often been by flight intercepts or other long term, broadscale collecting methods, which may blur differences in temporal occurrence.
Published as part of Morrill, Elizabeth, Crews, Sarah, Esposito, Lauren, Ramírez, Martín J. & Griswold, Charles, 2023, A revision of the genus Porteria and the phylogeny and biogeography of Porteriinae (Araneae: Desidae), pp. 368-461 in Zoological Journal of the Linnean Society 198 (2) on pages 421-426, DOI: 10.1093/zoolinnean/zlac093, http://zenodo.org/record/8007404
Databáze: OpenAIRE
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