Porteria, Simon, 1904

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 : 396

THE ALBOPUNCTATA SPECIES GRADE

This morphologically distinctive set of species is recognized by the common plesiomorphic genitalic characters of both males and females. Our phylogeny shows this set to be paraphyletic, so we refer to this as the Albopunctata Grade. Most diagnostic are the tegulum without a median concavity ( Figs 26B , 29B , 33B ), outlined by the dark sperm duct; embolus base elongated and narrow, not shield like nor heavily sclerotized, hugging prolateral margin of conductor ( Figs 26A, B , 29A , 33A , 39A, B ). LRTA projected straight up from tibia, unbent, in line with frontal plane. Paracymbium absent ( Figs 26C , 29C , 33C , 39C ). Epigyne atrium absent; copulatory openings flush with surface of epigynal plate ( Figs 25F , 28E , 30A , 35 A-C, 41A, 43E). Our phylogeny ( Fig. 73 ) implies those are all plesiomorphic traits for Porteria .

Included species: Porteria albopunctata and P. ajimayo , P. eddardstarki , P. fiura and P. misbianka .

Figures

Figure 25. Genitalia of P. albopunctata sp. nov., A-E, lectotype from Punta Arenas, MNHN22323, CASENT9055543. A, ventral view. B, retrolateral view. C, dorsal view. D, prolateral view. E, ventral view with entire cymbium. F-H, female from Laguna San Rafael National Park, CASENT9044702. F, ventral view. G, lateral view showing small scape. H, dorsal view showing internal structures. Scale bars = 0.2 mm.

Figure 26. Left male palp of P. albopunctata sp. nov. from Wellington Island, Puerto Edén, MCZ46441. A, prolateral view. B, ventral view. C, retrolateral view. D, dorsal view. Illustration by Rachel Diaz-Bastin.

Figure 28. Genitalia of P. fiura sp. nov. A-D, male from Chiloé Island CASENT9044672. A, left palp, retrolateral view. B, ventral view. C, prolateral view. D, dorsal view. E, F, female from Chiloé, CASENT9055645. E, ventral view. F, dorsal view, showing internal structures. Scale bars = 0.2 mm.

Figure 29. Left male palp of P. fiura sp. nov. AMNH paratype, CASENT9044672, Chiloé Island. A, prolateral view. B, ventral view. C, retrolateral view. D, tibia, dorsal view. Illustration by Rachel Diaz-Bastin.

Figure 30. Scanning electron micrograph of epigynum and vulva of P. fiura sp. nov. from Chiloé National Park, CASENT9055645. A, ventral view. B, dorsal view. C, close-up of scape and copulatory openings. D, head of spermatheca.

Figure 33. Left male palp of P. eddardstarki sp. nov. from Valparaíso Province, Cuesta Pucalán (CASENT9032846), details of tibia and tarsus and outlines of whole tibia and tarsus. A, prolateral view. B, ventral view. C, retrolateral view. Illustration by Giovanni Maki.

Figure 35. Genitalia of female P. eddardstarki sp. nov. A-C ventral view showing variability in scape form. A, from Los Molles CASENT9044704. B, C, from Pichicuy MACN-AR21060. D, dorsal view showing internal structures, from Zapallar CASENT9055699. Scale bars = 0.2 mm.

Figure 39. Left male palp of P. ajimayo sp. nov., from Parque Pedro del Río Zañartu, (CASENT9053784). A, prolateral view. B, ventral view. C, retrolateral view. D, tibia, dorsal view. Illustration by Rachel Diaz-Bastin.

Figure 73. Maximum clade credibility tree of the Bayesian phylogenetic analysis.