Porteria alopobre, Morrill & Crews & Esposito & Ramírez & Griswold, 2023

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), Zoological Journal of the Linnean Society 198 (2), pp. 368-461 : 435-436

PORTERIA ALOPOBRE SP. NOV.

FIGS 57–59

Zoobank registration: urn: lsid: zoobank. org:act: CF82E029-6963-4245-8D81-271EB7E65F61.

Types: Holotype male from wet disturbed forest in Chile, X Región de Los Lagos, Osorno Province ,

hills south of Maicolpue , elev. 75 m [S40.6179º, W73.7468º], collected January 26, 1986, N. I. Platnick and R.T. S ch u h, ( CASENT 9 0 4 4 6 4 7) deposited in AMNH .

Etymology: Named after the popular Chilean style of serving meat dishes, ‘a lo pobre’. A noun in apposition.

Diagnosis: Males of this species can be identified solely by the DTA; in lateral view, the DTA appears thumb like ( Figs 58C , 59C ), much larger than in P. ariasbohartae ( Fig. 71D ) or P. torobayo ( Fig. 55C ), blunted and dark, projected dorsally, perpendicular to frontal plane; in apical view, the DTA appears to have two small lobes ( Figs 58D , 59D ).

Description: Male: based on holotype. Markings as in Figure 57A, B , two yellow anterolateral bands with one pair of median spots. Total length 5.03. Carapace length 1.27 times width. Clypeus height 2.5 times AME diameter. ALE diameter 2 times AME diameter. Chelicera length 5.2 times clypeus height. Sternum as long as wide. Femur I 1.41 times carapace length. Leg formula 1423. Cymbium length 2.21 times length of bulb. Cheliceral promargin with four teeth and one denticle. Leg spination as follows: palp: femur d1-1- 3, patella d1-1, tibia d0-1(r)-0, tarsus p0-0-1, r0-0-1; leg I: femur d1-1-1(r)-1(p)-2, patella d1-1, tibia d1(r)- 0-0, p0-0-1-0, v2-2-2, metatarsus p0-0-1, v2-2-2; leg

436 E. MORRILL ET AL.

II: femur d1-2-1-1(r)-1(p)-2, patella d1-1, tibia d1(r)- 0-0, p0-1-1-0, r0-0-1-0, v2-2-2, metatarsus d0-0-1, p0-1-0, r0-1-1, v2-2-2; leg III: d1-1(p)-2-2-2, patella d1-1, tibia d1(r)-0-1-0, p0-1-0-1-0, r0-1-1-0, v2-2-2, metatarsus d2-0-2, p0-1-0, r-0-1-0, v2-2-2, tarsus r0-1; leg IV: femur d1-1-1(p)-1(r)-2, patella d1-1, tibia d1(r)-0-1-0, p0-1-0-1-0, r0-1-0-1-0, v2-2-2, metatarsus d2-0-2, p0-1-0, r0-1-0, v2-2-2, tarsus r0-1. Palp as in Figures 58 and 59 , similar to P. faberi , with a few noticeable exceptions. DTA is a thumb-like blunted projection oriented straight back dorsally ( Figs 58A, C , 59A ), oriented dorsoapically in P. ariasbohartae or P. torobayo . RTA thicker, extending out more perpendicular to tibia with thicker apex, blunted, with darkened tooth-like point on anterior margin directed anteriorly ( Figs 58B, D , 59B ). Embolus base longer, reaching past midline of bulb, anterior margin smooth, not notched ( Fig. 59B ). Embolus, VTA and conductor like P. faberi . Paracymbium present, knob like ( Fig. 59C ).

Leg measurements (right): leg I 13.35 (3.50, 4.40, 3.50, 1.95); leg II 11.30 (3.10, 3.55, 2.95, 1.70); leg III 10.25 (2.85, 3.05, 3.00, 1.35); leg IV 13.30 (3.50, 3.95, 4.05, 1.80); palp 5.65 (2.10, 1.45, –, 2.10).

Distribution: Known only from the type locality in Osorno Province, X Región de los Lagos ( Fig. 76C ).

Other material examined: None.

Figures

Figure 55. Genitalia of P. torobayo sp. nov. A-D, left palp, male holotype, FMHD97-18. A, retrolateral view. B, ventral view. C, prolateral view. D, detail, dorsal view. E-G, female paratype, FMND97-18. E, ventral view. F, dorsolateral view showing Bennett’s gland pore. G, dorsal view.

Figure 57. Habitus of male P. alopobre sp. nov. holotype from Osorno, CASENT9044647. A, dorsal view. B, ventral view.

Figure 58. Left male palp of P. alopobre sp. nov. holotype from Osorno, CASENT9044647.A, prolateral view. B, ventral view. C, retrolateral view. D, dorsal view. Scale bars = 0.5 mm.

Figure 59. Left male palp of P. alopobre sp. nov. AMNH holotype from hills south of Maicolpue, Osorno, CASENT9044647. A, prolateral view. B, ventral view. C, retrolateral view. D, dorsal view. Illustration by Rachel Diaz-Bastin.

Figure 71. Genitalia of P. ariasbohartae sp. nov. A-E, left palp, male holotype from Oncol Park, CASENT9026272. A, prolateral view. B, ventral view. C, detail prolateral view. D, retrolateral view. E, detail, dorsal view. F-H, female paratype from Oncol Park, CASENT9026272. F, ventral view; note fleshy bulge bisecting atrial cavity. G, dorsal view. H, dorsolateral view.

Figure 76. A, records of Porteria species in Chile. B, distribution of P. eddardstarki sp. nov.—the northernmost record is Fray Jorge National Park. C, records of species with restricted distributions, and of P. albopunctata sp. nov. in southern Chile. D, distribution of P. ajimayo sp. nov.—the southernmost records are in Reserva Costera Valdiviana and Alerce Costero National Park. E, distribution of P. bunnyanasp. nov.—the southernmost record is in Chonchi, Chiloé Island.