Tricalamus lindbergi (Roewer, 1962) Roewer, 1962

Zonstein, Sergei L., Marusik, Yuri M. & Koponen, Seppo, 2013, Redescription of three species of Filistatidae (Araneae) described by C. F. Roewer from Afghanistan, Zootaxa 3745 (1) : -

Tricalamus lindbergi (Roewer, 1962) comb. n.

Figs 14–20

Filistata lindbergi Roewer 1962: 13 , f. 7, 10 (♀). Pritha lindbergi: Lehtinen 1967: 260 .

Material examined. Paratypes: 2♀— AFGHANISTAN, Baglan Province, Kirmak N of Doab (ca. 35º22'N 68º06'E), 11.11.1957, K. Lindberg (SMF).

Diagnosis. Differs from congeners by the triangle-shaped main (median) receptacles, lack of distinct heavily sclerotized pores on receptacles and lack of a stem in the accessorial (lateral) receptacles (cf. Wang 1987: figs 1E, 2D–M, 3F–J, 4E, 5E, 6E–G, 7E; Wang & Wang 1992: figs 1F, 2C).

Description. Female. Total length 4.45. Color in alcohol: ground color of body and legs light yellowishorange. Carapace flat ( Fig. 18 ) with distinct blackish-brown eye tubercle; median Y–shaped spot and margins of carapace light to medium brown, as well as narrow transverse fascia on palps and legs, and dorsal abdominal pattern, consisting of five paired and inclined chevrons, partially fused medially and laterally ( Figs 16, 18 ). Maxillae, coxae, labium, sternum and abdomen ventrally pale grayish-yellow ( Figs 16-18 ). Carapace ( Figs 16, 18– 19 ): 1.57 long, 1.15 wide. Eye diameters: AME 0.07, ALE 0.20, PLE 0.14, PME 0.14. Interdistance AME–AME: 0.06. Measurements of legs and palp as shown in Tab. 1 . Calamistrum consisting of three distinct rows as shown in Fig. 20 .

Endogyna as in Figs 14–15 , with one pairs of main receptacles and one pair of accessorial receptacles attached to terminal part of the main receptacles; main receptacle spaced by about the diameter of the accessorial glands, they have a wide base and a triangular head, median part with a small outgrowth; accessorial receptacles suboval.

Male. Unknown.

Note. Habitually, T. lindbergi resembles species of Pritha Lehtinen, 1967 to where it was transferred by Lehtinen when he described the genus. But unlike the true Pritha which have a biseriate calamistrum, the considered females have this structure composed of three rows of setae (as in all females of Tricalamus, hence the origin of the last genus name is evident). Other characters, such as rostral shape of the clypeus and the characteristic "subfasciate" coloration of the abdomen also are sufficient grounds for the transfer.

Distribution. The species is known from northern Afghanistan. It is the westernmost species of Tricalamus .

Zaitunia Lehtinen, 1967

Zaitunia Lehtinen, 1967: 275 . Type species by monotypy— Filistata schmitzi Kulczyński, 1911 .

Notes. This genus belongs to Filistatinae and currently includes 10 species distributed from the Sinai Peninsula ( Egypt) to eastern Kazakhstan (Platnick 2013). They are mostly medium-sized with a body length of 3–7 mm, have a short and steeply inclined clypeus and short spatulate setae on tarsi I–IV. Males have long to very long legs with pseudosegmented tarsi, the palpal tibia is relatively short and swollen, and the bulb has an ejaculatory duct tightly coiled 3–4 times and the embolus is lamellose. In females metatarsus IV has a very short uniseriate calamistrum on a raised keel; endogyne with two pairs of receptacles; receptacles are not fused.

Diagnosis. Zaitunia species habitually resemble species of Filistata (particularly, at first sight females are indistinguishable). The main distinctive features of Zaitunia are as follows (the corresponding states in Filistata are enclosed in brackets): 1) the thoracic fovea is absent (well-developed), 2) clypeus short and subvertical (rather long and subhorizontal), sternum subcircular (oval), 3) labium nearly as broad as long (noticeably longer than broad), 4) in males palpal tibia short to very short and swollen (subcylindrical, rather long and slender).

Figures

FIGURES 11 – 15. Female copulatory organs of Pholcoides afghana (11 – 12), Zaitunia afghana (13) and Tricalamus lindbergi (14 - 15). 11, 13 ventral; 12, 14 – 15 dorsal. Abbreviations: Ar accessorial receptacle; Mr main receptacle.

FIGURES 16 – 20. Somatic characters of paratype female of Tricalamus lindbergi. 16 – 18 body, dorsal, ventral and lateral; 19 carapace, dorsal; 20 metatarsus IV showing calamistrum with 3 rows of setae.

Tables

TABLE 1. Leg measurements.

	Femur	Patella	Tibia	Metatarsus	Tarsus	Total
Palp	0.77	0.45	0.38		0.57	2.17
I	1.30	0.43	1.27	1.05	0.83	4.88
II	1.02	0.47	0.73	0.83	0.65	3.70
III	0.77	0.52	0.65	0.85	0.47	3.26
IV	1.25	0.67	0.97	1.05	0.53	4.47