Taczanowskia

Ibarra-Núñez, Guillermo, 2013, A new species of the spider genus Tac zan o ws kia (Araneae, Araneidae) from Mexico, Zootaxa 3664 (1), pp. 57-62 : 61

Key to Taczanowskia species (females)

Modified from Levi (1996).

1 Sides of opisthosoma with two lobes. Opisthosoma widest near its rear end (fig. 20)............... trilobata Simon, 1897

- Opisthosoma without such lobes. Opisthosoma widest in the middle ( Fig. 1 , figs. 8, 12, 16).......................... 2

2 Opisthosoma almost circular in dorsal view. Femora III with a ventral row of teeth ( Figs. 1 , 9 )....... gustavoi new species

- Opisthosoma clearly wider than long in dorsal view (figs. 8, 12, 16). Femora III without a ventral row of teeth.......... 3

3 Dorsum of opisthosoma with three pairs of nipples (fig.12).......................... sextuberculata Keyserling, 1892

- Opisthosoma with one pair of dorsal tubercles (figs. 8, 16)................................................... 4

4 Opisthosoma with colored patches, brushes of white setae and black feather-like setae on each side (fig. 16); total length less than 5.5 mm ....................................................................... striata Keyserling, 1879

- Opisthosoma evenly colored (fig. 8); total length usually more than 6.0 mm..................... mirabilis Simon, 1897

Figures

FIGURES 1 – 5. Taczanowskia gustavoi new species, female holotype. 1, Habitus dorsal view; 2, Habitus frontal view; 3, Habitus latero-dorsal left view; 4, Habitus ventral view (live); 5, Claws of anterior legs in distal (a) and lateral (b) views. Scale bars: Figures 1 and 4 = 1.0 mm; Figure 5 = 0.5 mm.

FIGURES 6 – 9. Taczanowskia gustavoi new species, female holotype. 6, Carapace and anterior part of opisthosoma; 7, Prosoma ventral view; 8, Right legs I and II in dorsal view; 9, Right leg III in ventral view. Scales bars = 1.0 mm.