Dictyna arundinacea (Linnaeus 1758)
- Dataset
- On the three poorly known species of Dictyna Sundevall, 1833 (Araneae: Dictynidae) described from Armenia and Siberia
- Rank
- SPECIES
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Arachnida
- order
- Araneae
- family
- Dictynidae
- genus
- Dictyna
- species
- Dictyna arundinacea
description
(Figures 1 a – e, h, 2, 4)
discussion
Comments The endogyne of the holotype female of D. ignobilis is undistinguishable from that of D. arundinacea. The adult male specimen collected about 10 kilometres from the type locality has no distinct differences in the palp from that of D. arundinacea, and therefore the two names are synonymised here. The slight apparent differences between the male palps of specimens from Armenia (Figure 2 a – c) and Yakutia (Figure 2 d – e) are caused by different positions of the palps during photography.
distribution
Distribution Dictyna arundinacea has a circum-Holarctic range and is known across the whole Palaearctic from Iceland to Kamchatka (Marusik et al. 2000), and throughout the Nearctic from Alaska (GenBank accession nos: KU 874826, KU 874827) to Newfoundland (Paquin et al. 2010). This species is also known from across the Caucasus, including Armenia (Otto 2022).
materials_examined
Material examined Holotype ♀ and paratype 1 ♂ juv. from IZ PAN with museum label ‘ Armenia: Elenovka, ad lacum Goktsha, 9. VI. leg. G. Horwath’ (Figure 1 f, modern name Sevan Town on Sevan Lake) and original label ‘ Armenia ♀, ♂ juv. Bessarabia’ (Figure 1 g); 1 ♂ 20 juv. (ZMMU), ARMENIA, Gegharkunik Province, Sevan Lake, env. of Tsovagyugh Town, 40.615 ° N 44.968 ° E, 1920 m, lake shore, in dry collective fruits (= inflorescence) of Astragalus sp., 8 May 2021 (Y. M. Marusik). Note Holotype ♀ (Armenia) and paratype subadult male (Bessarabia) are from very widely separated localities (ca. 1500 km). Brief description Holotype female. General appearance as in Figure 1 a – b, h. Total length 3.0. Carapace 1.25 long, cephalic part 0.83 wide, thoracic part 0.95 wide. Leg length as shown in Table 1. Epigyne as in Figure 1 c – e. Topotype male. General appearance as in Figure 2 d, g – h. Total length 2.63. Carapace 1.25 long, cephalic part 0.63 wide, thoracic part 1.0 wide. Leg length as shown in Table 2. Palp as in Figure 2 a – c.