Taczanowskia, Modified

Díaz-Guevara, David R., Macías-Tulcán, Mauricio & Galvis, William, 2024, Taczanowskia yasuni new species: A new enigmatic species of spider (Araneidae) from the Ecuadorian Amazon canopy, Zootaxa 5397 (2), pp. 295-300 : 300

Identification key for females of the genus Taczanowskia

Modified from Levi (1996), Ibarra-Nuñez (2013) and Jordán et al. (2021).

1. Sides of opisthosoma with two lobes; opisthosoma widest near its posterior end...... T. trilobata Simon ( Levi, 1996: fig. 20)

1’. Opisthosoma without such lobes; widest in the middle........................................................ 2

2. Femora III with a ventral row of teeth..................................................................... 3

2’. Femora III without a ventral row of teeth.................................................................. 4

3. Opisthosoma almost circular in dorsal view, with numerous dorsal tubercles.............................................................................................. T. gustavoi Ibarra-Núñez ( Ibarra-Núñez, 2013: figs. 1–3)

3’. Opisthosoma clearly longer than wide, without dorsal tubercles, smooth..................... T. yasuni n. sp. ( Figs. 1a–c )

4. Dorsum of opisthosoma with three pairs of tubercles.................. T. sextuberculata Keyserling ( Levi, 1996: fig. 12)

4’. Opisthosoma with one pair of dorsal tubercles.............................................................. 5

5. Opisthosoma with colored patches, black feather-like setae and bundles of white setae on each side; carapace with radiating dark lines; total length less than 5.5 mm, narrower opisthosoma (1.4 times its length)................................................................................................... T. striata Keyserling ( Levi, 1996: fig. 16)

5’. Opisthosoma without feather-like setae, carapace without radiating dark lines; total length usually more than 6.0 mm, wider opisthosoma (1.8 times its length)........................................................................ 6

6. Opisthosoma with patchy dark-light coloration, dark spots concentrated towards anterior margin and on lateral tips, bundles of white setae across the entire surface, forming a distinct reticulum; first two femora thick but lacking teeth on ventral region........................... T. onowoka Jordán, Domínguez-Trujillo & Cisneros-Heredia ( Jordán et al. 2021: figs. 6A–D)

6’. Opisthosoma not as above, with different coloration patterns; bundles of setae absent; first two femora with teeth on ventral region................................................................ T. mirabilis Simon ( Levi, 1996: fig. 8).

Figures

FIGURE 1. Taczanowskia yasuni n. sp. A, Female habitus, frontal view. B, same, dorsal view. C, same, ventral view. D, epigynum, ventral view. E, same, lateral view. F Leg II, lateral view.