Selkirkiella, BERLAND, 1924

Agnarsson, Ingi, 2004, Morphological phylogeny of cobweb spiders and their relatives (Araneae, Araneoidea, Theridiidae), Zoological Journal of the Linnean Society 141 (4), pp. 447-626 : 476

publication ID

https://doi.org/ 10.1111/j.1096-3642.2004.00120.x

persistent identifier

https://treatment.plazi.org/id/7E1687E1-4223-6C17-FE8C-F8A08981FBA0

treatment provided by

Diego

scientific name

Selkirkiella
status

 

SELKIRKIELLA BERLAND, 1924 View in CoL View at ENA

Selkirkiella Berland, 1924 , type species by monotypy Selkirkiella alboguttata Berland, 1924 , not examined.

Removed from synonymy of Anelosimus contra Levi (1972: 536). In addition to S. alboguttata (Berland, 1924) , several former Anelosimus species are transferred and the following new combinations established: S. carelmapuensis (Levi, 1963) , S. luisi (Levi, 1967) , S. magallanes (Levi, 1963) , S. michaelseni (Simon, 1902) , S. purpurea (Nicolet, 1849) , S. ventrosa (Nicolet, 1849) , and S. wellingtoni (Levi, 1967) .

Synapomorphies of Selkirkiella in this study ( S. alboguttata and S. magallanes ) include: conductor enlarged and fan shaped (63, Fig. 67A, C View Figure 67 ), conductor heavily ridged (65, Fig. 67C View Figure 67 ), TTA apex with small apophysis (82, Fig. 67A, B View Figure 67 ), SPR ectally orientated picks absent (153, Fig. 67F View Figure 67 ), grooved SPR region (155, Fig. 67F View Figure 67 ), and elongate FL spigot (206, Fig. 68E View Figure 68 ). Also, characteristically in Selkirkiella the conductor and TTA are strongly compressed together, separated by a narrow seam ( Fig. 67B View Figure 67 ). Based on Levi’s (1963, 1967) drawings and descriptions, at least the enlarged and fan shaped conductor, TTA apex apophysis, and TTA and C compressed are universal in Selkirkiella .

Diagnosis

Selkirkiella differs from related pholcommatines by the shape and texture of the conductor, TTA apophysis, TTA and C compressed, lack of ectally orientated SPR, and possibly by mode of egg-sac protection, where a small sheet is woven to cover the egg sac ( Fig. 95E View Figure 95 ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Theridiidae

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