Tigidia, Simon, 1892

Mirza, Zeeshan A., 2023, Notes on the trapdoor spider genus Tigidia Simon 1892 (Araneae: Barychelidae: Barychelinae) with the description of three new species from India, Journal of Natural History 57, pp. 159-174 : 173

Key to Indian Tigidia ( Figure 9 )

1a. Spines present on legs III and IV ................................................................................................... 2

1b. Spines present on all legs ............................................................................... T. fasciata sp. nov.

2a. Spermathecal stalk mound-shaped ( Figure 9 (d–f))................................................................. 3

2b. Spermathecal stalk digitiform ( Figure 9 (a–c)) .......................................................................... 4

3a. Dorsal abdominal pattern chevron ........................................................................ T. rutilofronis

3b. Dorsal abdominal pattern mottled ............................................................................ T. sahyadri

4a. Dorsal abdominal pattern chevron .............................................................................................. 5

4b. Dorsal abdominal pattern mottled .................................... .................................... T. nilgiriensis

5a. Outer lobe of spermathecae simple, balloon-like structure of similar length at 1/4 th distal end ( Figure 9 (a)) ............................................................................ T. jalgaonensis sp. nov.

5b. Outer lobe of spermathecae each with a lateral balloon-like lobe supported by a twisted sclerotised structure emerging outward from close to the base ( Figure 9 (b)) ................................................................................................................................ T. tangerina sp. nov.

Figures

Figure 9. Spermathecae of Tigidia spp.: (a) Tigidia jalgaonensis sp. nov., (b) Tigidia tangerina sp. nov., (c) Tigidia fasciata sp. nov., (d) Tigidia sahyadri, (e) Tigidia nilgiriensis, (f) Tigidia rutilofronis. Scale bars: A–C = 0.5 mm; D–F = 1 mm. Figure 9(d–f) reproduced from Siliwal et al. (2011).