Porteria faberi Morrill & Crews & Esposito & Ramírez & Griswold 2023, SP. NOV.
Creators: name: Morrill, Elizabeth
name: Crews, Sarah
name: Esposito, Lauren
name: Ramírez, Martín J.
name: Griswold, Charles
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Desidae
Porteria
Porteria faberi

description: PORTERIA FABERI SP. NOV.
FIGS 5, 6, 16C, 17D, 49–53
Zoobank registration: urn: lsid: zoobank. org:act: C74D28A5-E97C-42BF-B296-4A81BCDF 161F.
Types: Holotype male and paratype female collected by E. Morrill, D. Faber, C. Griswold in native forest during January 21–24, 2013 at Reserva Costera Valdiviana, 18 km WSW Corral, S39º59.656’, W73º35.206’, elev. 372 m, in Chile, XIV Región de los Ríos, CASENT9036439 and CASENT9055644, respectively, deposited in MHNS.
Etymology: A patronym in honour of David A. Faber, Liz’s fellow Chile adventurer, invaluable field assistant and best friend, who has supported her in so many ways throughout her Masters studies.
Diagnosis: Males of this species can be easily identified by their conspicuously serrate DTA (Figs 50A, C, 51C, 52B, D). Females have a hooded epigyne, wide median septum extending to atrium with two semicircular copulatory openings; small finger-like scape in middle of hood, pointed posteriorly (Figs 50G, 53A, C, D).
Description: Male: based on CASENT9036439, from Reserva Costera Valdiviana. Markings as in Figure 49 A-C, two yellow anterolateral lines and two pairs of median spots on dorsum of abdomen. Total length 5.09. Carapace length 1.27 times width. Clypeus height 2.83 times AME diameter. ALE diameter 1.83 times AME diameter. Chelicera length 4.35 times clypeus height. Sternum length 1.04 times width. Femur I 1.44 times carapace length. Leg formula 1423. Cymbium length 2.69 times length of bulb. Cheliceral promargin with five teeth and one denticle. Leg spination as follows: palp: femur d1-1-3, patella d1-1, tibia d0-1-0, tarsus r0-0-1; leg I: femur d1-3-1(r)-1(r), p0-1-1-1, patella d1-1, tibia d1(r)- 0-0, p0-0-1-0, v2-2-2, metatarsus d0-0-1, p0-0-1, r0-1-1, v2-2-1; leg II: femur d3-3-1(p)-2, patella d1-1, tibia d1(r)- 0-0, p0-1-0-1-0, r0-1-0-1-0, v2-2-2, metatarsus d0-0-1, p0-1-1, r0-1-1, v2-2-2; leg III: femur d3-3-2-2, patella d1-1, tibia d1(r)-0-1-0, p0-1-0-1-0, r0-0-1-1-0, v1(p)- 1(p)-2, metatarsus d1(p)-0-1, p0-1-1, r0-1-2, v2-2-1; leg IV: femur d1-2-2-2, patella d1-1, tibia d1(r)-0-1-0, p0-1-0- 1-0, r0-1-0-1-0, v2-2-2, metatarsus d0-0-1, p1-1-0-1, r1-1- 1-1, v0-2-2-2, tarsus r0-1. Note tarsal spines present on male CASENT9055709 on legs II and IV. Male palp as in Figures 50–52, with four tibial apophyses: large, attenuate RTA with apex-like darkened tooth projecting up towards palp’s apex (Fig. 50B); LRTA bent projected ventrally, perpendicular to frontal plane; VTA flattened mound, DTA serrate with finger-like projection or two pointed apexes (Figs 50C, 51C). Paracymbium present on retroapical side of bulb (Fig. 51C). Conductor tightly twisted, originating at base of tegulum and extending just past the distal end of the bulb (Figs 52A,B). Embolus base large, plate like, but opening outward ventrally, like a bowl, margin smoothed, not notched (Fig. 51B). Embolus tip gradually tapering along prolateral margin of bulb, abruptly narrowed for the distal third of its length (Figs 51A, 52C).
Leg measurements (left): leg I 14.81 (3.75, 5.23, 3.55, 2.28); leg II 12.13 (3.35, 3.82, 3.15, 1.81); leg III 11.19 (3.08, 3.22, 3.28, 1.61); leg IV 14.34 (3.48, 4.29, 4.49, 2.08); palp 6.10 (2.14, 1.61, –, 2.35).
Variation: (N = 3). Total length 4.22–5.70. Carapace length 1.20–1.32 times width. Clypeus height 1.86– 2.5 times AME diameter. ALE diameter 1.43–1.83 times AME diameter. Chelicera length 4.93–6.79 times clypeus height. Sternum length 1.08–1.15 times width. Femur I 1.34–1.55 times carapace length. Cymbium length 2.48–2.63 times length of bulb. Cheliceral promargin with four to five teeth and one to two denticles. DTA may have either a long finger-like projection (Fig. 50D) or two equally pointed apexes (Fig. 50E). Spines on tarsus of legs III and IV vary.
Description: Female: based on CASENT9055644, from Reserva Costera Valdiviana. Markings as in Figure 49 D-F; dorsum of abdomen with several pairs of distinct yellow median spots as well as spots posterior to bright yellow anterolateral bands. Total length 5.83. Carapace length 1.36 times width. Clypeus height 2.33 times AME diameter. ALE diameter 1.83 times AME diameter. Chelicera length 5.29 times clypeus height. Sternum as long as wide. Femur I 1.08 times carapace length. Leg formula 4123. Cheliceral promargin with five teeth and two denticles. Feathery hairs present on palps. Leg spination as follows: palp: femur d1-1-3, patella d1-1, tibia d1(r)-0-1, p1-0-0, tarsus d2-0-0, p1-1-1, r1-0, v0-2-3; leg I: femur d1-3-1(r)-1(p)-2, patella 1-1, tibia d1(r)-0-0, p1-1-1-0, v2-2-2, metatarsus p0-0- 1, r0-0-1, v2-2-1; leg II: femur d1-2-1-1(r)-1(p)-2, patella 1-1, tibia d1(r)-0-0, p0-1-0-1-0, r0-1-0-1-0, v2-2-2, metatarsus d0-0-1, p0-1-1, r0-1-1, v2-2-2; leg III: femur d3-3-2-2, patella d1-1, tibia d1(r)-0- 1-0, p0-1-0-1-0, r0-1-0-1-0, v2-1(p)-2, metatarsus d2-2-2, p0-0-1, r0-0-1, v2-2-1, tarsus v0-0-1-1; leg IV: femur d1-2-1(p)-1(r)-2, patella d1-1, d1(r)-0-1-0, p0-1-0-1-0, r0-1-0-1-0, v2-2-2, metatarsus d2-2-1-2, p0-0-1, r0-01, v2-2-1(r), tarsus r0-1, v0-1-2. Epigyne as in Figures 50 F-H and 53, with distinct hood covering two, semicircular copulatory openings (Fig. 50F, G); wide median septum extended under hood; small finger-like scape (Fig. 53A) projecting posteriorly from middle of hood margin; two large posterior lobes. Vulvae (Fig. 53B, E) with medium length copulatory ducts, looping ventrally and then dorsally to join the stalk of spermatheca just posterior to head. Head well differentiated, and stalk parallel to frontal plane; both head and stalk with pores. Base 2 attached to middle of the stalk, transverse and ovoid in shape in dorsal view; copulatory duct ‘resting’ on anterior surface of Base 2. Base 1 posterior to Base 2, extending ventrally; Bennett’s gland pore obscured in dorsal view, visible in lateral view; positioned laterally on Base 1; left and right Base 1 not touching.
Leg measurements (left): leg I 9.76 (2.64, 3.28, 2.24, 1.60); leg II 8.48 (2.44, 2.72, 2.00, 1.32); leg III 8.00 (2.24, 2.44, 2.12, 1.20); leg IV 10.40 (2.80, 3.20, 2.96, 1.44); palp 3.48 (1.08, 1.24, –, 1.16).
Variation: (N = 3). Total length 4.75–5.56. Carapace length 1.31–1.38 times width. Clypeus height 2.17–2.67 times AME diameter. ALE diameter 1.5– 1.83 times AME diameter. Chelicera length 4.81– 5.43 times clypeus height. Sternum length 1.00–1.25 times width. Femur I 1.03-1.09 times carapace length. Cheliceral promargin with five teeth and one denticle. Coquimbo specimen (CASENT9044710, Fig. 53D, E) with dorsal abdominal markings faded (median spots not well defined); slight variation in median septum width and angles of the posterior lobes of the epigyne; left and right Base 1 of the spermatheca closer together with median mound present on atrium ventral wall in Coquimbo specimen. Scape varies between specimens in width and length (Fig. 53A, C, D).
Distribution: Majority of specimens collected in the Valdivia area in the Los Ríos Region XIV; one outlier from Coquimbo in Region IV at the extreme northern edge of Porteria ’s range (Fig. 76C).
Other material examined: IV Región de Coquimbo: Coquimbo, Los Molles, Ovalle, elev. 1600 m, October 17, 1994, L.E. Peña, one female, AMNH (CASENT 9044710); XIV Región de los Ríos: Valdivia Province, elev. 700 m, December 17, 1984 - February 7, 1985, S. and J. Peck, ‘mixed evergreen forest’, one male AMNH (CASENT9044656), ‘ WNW of La Unión’, two males, AMNH (CASENT9044675); Valdivia Province, Las Lajas, west of La Unión, L. E Peña, January 13–15, 1990, one male, AMNH (CASENT9044648); Valdivia and Ranco Province, Reserva Costera Valdiviana, Sendero los Alerces, 18 km WSW Corral, S39º59.645’, W73º35.114’, elev. 360 m, November 25–27, 2009, H. Wood, L. Almeida, C. Griswold, one male, one female, CAS (CASENT9036441), Reserva Costera Valdiviana, 18 km WSW Corral, S39º59.656’, W73º35.206’, elev. 372 m, January 21–24, 2013, E. Morrill, D. Faber, C. Griswold, ‘general collecting in native forest’, 24 females, CAS (CASENT 9048546, 9055644, 9055712), ‘night collecting’, 11 males, 25 females, CAS (CASENT9053816, 9053848, 9055638, 9055681, 9053791), 15 km WSW Corral, S39º58.173’, W73º34.225’, elev. 15 m, January 23, 2013, E. Morrill, D. Faber, ‘general collecting at night in native forest’, two males, CAS (CASENT9055709).
Notes: Male and female association for this species is with high confidence; males were collected on female webs at night multiple times in Reserva Costera Valdiviana, and this was the only species found on Sendero Los Alerces during the most recent collecting event. The association is also supported by molecular data (‘faberi’ in Fig. 73).
description: 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 427-432, DOI: 10.1093/zoolinnean/zlac093, http://zenodo.org/record/8007404