Research Article |
Corresponding author: Alireza Zamani ( zamani.alireza5@gmail.com ) Academic editor: Cor Vink
© 2015 Yuri M. Marusik, Alireza Zamani.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Marusik YM, Zamani A (2015) The spider family Filistatidae (Araneae) in Iran. ZooKeys 516: 123-135. https://doi.org/10.3897/zookeys.516.10146
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All species of Filistatidae occurring in Iran are surveyed. Zaitunia akhanii sp. n. is described on the basis of female specimens collected in Tehran province, and the previously unknown male of Sahastata sinuspersica Marusik, Zamani & Mirshamsi, 2014 is described for the first time. Also, the endogynes of the holotypes of Z. alexandri Brignoli, 1982, Z. medica Brignoli, 1982 and Z. persica Brignoli, 1982 are illustrated. Including these results, the number of Iranian species of Filistatidae is increased to seven, which indicates the highest species-richness of this family in the Western Palaearctic.
Fauna, Aranei, Near East, new species, Filistata, Sahastata, Zaitunia
Filistatidae is a relatively small, globally-distributed family currently comprised of 119 extant species within 18 genera (
Specimens were photographed using an Olympus Camedia E-520 camera attached to an Olympus SZX16 stereomicroscope or to the eye-piece of an Olympus BH-2 transmission microscope. Digital images were prepared using “CombineZP” image stacking software (http://www.hadleyweb.pwp.blueyonder.co.uk/). Illustrations of internal genitalia were made after clearing in 10% KOH aqueous solution and exposure for a few minutes in an alcohol/water solution of Chlorazol Black. Lengths of leg segments were measured on the dorsal side. Measurements of palp and legs are listed as: total length [femur, patella, tibia, metatarsus, tarsus]. Description of the palp refers to the left one. All measurements are given in millimeters.
MCSN Museo Civico di Storia Naturale di Verona.
SMF Senckenberg Museum, Frankfurt am Main.
ZMMU Zoological Museum of the Moscow State University.
ZMUT Zoological Museum of University of Tehran.
Filistata testacea Latreille, 1810 (considered a junior synonym of F. insidiatrix).
Filistata is a genus of medium to large-sized Filistatinae spiders with 19 valid species mainly distributed from Mediterranean to Turkmenistan. Members of this genus can be diagnosed by the long and cylindrical palpal tibia of males, well-developed thoracic fovea, long and subhorizontal clypeus, oval sternum and longer than wide labium (
Filistata insidiatrix:
Well-described by
Chahar Mahal & Bakhtiary, Fars, Golestan, Isfahan, Kordestan, Mazandaran, Razavi Khorasan, Tehran.
This species has the widest range within the entire family. It is known from the Iberian Peninsula to Turkmenistan and northeastern Iran (
Filistata lehtineni
This species differs from F. insidiatrix by smaller size, shorter and thicker male palp with screw-shaped embolus, and smaller receptacles (cf. Fig.
Both sexes of this species are described in detail in
Zanjan.
Known only from southern Azerbaijan and northwestern Iran.
Filistata nigra Simon, 1897.
Sahastata is a small genus of large-sized Filistatinae spiders with four described species distributed from the Mediterranean to India. Members of Sahastata differ distinctly from other genera of Filistatinae by the shape of the calamistrum (two-three rows, not placed in a crest), presence of a dense ventral scopula on the femora I and II of females (
Sahastata sinuspersica
IRAN: 1♂ 1♀ (SMF), Hormozgan Province: Hormuz Island, 27°04'N, 56°28'E, January 2015 (A. Zamani).
Females of S. sinuspersica can be distinguished from the other female congeners by having one pair of receptacle heads connected to the epigastric furrow by a pair of ducts, while S. nigra Simon, 1897 present two pairs of spermathecae heads (
Male. Total length 4.85. Carapace 2.32 long, 1.75 wide, 0.5 high, flat, light-colored, with V-shaped brown median spot reaching clypeus and poorly distinct radial stripes, covered with short adpressed dark hairs, postocular area with few strong erected hairs (Fig.
Palp as in Fig.
Female. Described by
Specimens were mostly found under stones and in natural crevices on a sandy substrate near the sea.
Hormozgan.
Endemic to southern Iran.
Filistata schmitzi Kulczyński, 1911.
Zaitunia is a small genus of small to medium-sized Filistatinae spiders with 11 described species distributed from East Mediterranean to Central Asia. They are diagnosable from the similarly-looking Filistata by the lack of a thoracic fovea, short and subvertical clypeus, subcircular sternum, as broad as long labium, and by a short and swollen palpal tibia of males (
IRAN: Holotype ♀ (SMF) and paratypes 7♀ (ZMMU, ZMUT), Tehran Province: Southern macroslopes of Alborz mountains, 35°48'29"N, 51°23'E, July 2014 (A. Zamani).
This species is named after Iranian botanist Hossein Akhani (University of Tehran), in recognition of his contributions to the botanical studies of Iran and his numerous environmental activities.
Females of Z. akhanii sp. n. resemble those of Z. persica Brignoli, 1982 by having one pair of sinuous tube-like receptacles, but Z. akhanii sp. n. has two loops (or curves) while Z. persica has four (
Female (paratype). Total length 5.2. Carapace 2.16 long, 1.6 wide. Eye sizes and interdistances: AME 0.09, ALE 0.16, PLE 0.11, PME 0.12, AME-AME 0.03. Light yellowish-colored with distinct pattern on carapace and legs: clypeus whole dark, wide dark median band terminated near fovea. Abdomen uniformly yellowish-gray without darker pattern. Legs with few spines; calamistrum located on low ridge, uniseriate (Fig.
Vulva as in Fig.
Male. Unknown.
Total length 4.8–7.2. Pale specimens may have light clypeus.
Specimens were found in large, dusty cribellate webs made around human dwellings.
Known only from the type locality in Tehran.
Zaitunia alexandri
IRAN: holotype ♀ (MCSN), Fars Province: Kuhenjan, 27 May 1976 (S. Zerunian).
This species differs from other Iranian congeners by the shape of the sac-like receptacles, slightly longer than wide.
Fars.
Endemic to southern Iran.
Zaitunia medica
IRAN: holotype ♀ and paratype ♀ (MCSN), Isfahan Province: Laybid, 2100 m, 7 July 1975 (P. Brignoli & M. Di Rao).
This species differs from other Iranian congeners by the shape of sac-like receptacles, which are wider than long.
Well-described by
Isfahan.
Endemic to central Iran.
Zaitunia persica
IRAN: holotype ♀ and paratype ♀ (MCSN), Fars Province: Dehbid, 2100m, 24 May 1976 (P. Brignoli).
This species differs from other Iranian congeners by very long, tube-like receptacles curved four times.
Well-described by
Fars.
Endemic to southern Iran.
Although some other species of Zaitunia described from nearby countries have not been properly described and their genitalia have never been illustrated, and female filistatids are known to be morphologically variable to some degrees, an ongoing revision of this genus (Zonstein and Marusik, unpublished) and the examination of more than 20 species, including types of all central Asian species (which all have very limited distributions) confirm that Z. akhanii sp. n. is a separate, undescribed species. The results of this study show that there are seven species in three genera of Filistatidae known from Iran, of which five are endemic and one is sub-endemic. This is the highest species-richness of the family in the Western Palaearctic, and is considerably higher than the whole Caucasus (three species in two genera), adjacent Turkey (two species in two genera) and all of Europe (six species in two genera). Although this indicates a high diversity of this group in Iran, an even higher diversity should be expected, considering that most regions of Iran, especially the large Zagros Mountain range in the western parts, have never been thoroughly studied in regards to the filistatid fauna. We expect the occurrence of at least three additional genera in Iran: Microfilistata Zonstein, 1990, Pritha Lehtinen, 1967 and Tricalamus Wang, 1987. All these genera are known in adjacent Afghanistan, Azerbaijan and Turkmenistan (
We are grateful to the editor Cor Vink and the two reviewers for their invaluable comments on an earlier draft of the manuscript, Francesco Ballarin for providing us with the type specimens of three Zaitunia species described by Brignoli, Seppo Koponen for providing museum facilities in the University of Turku, Pantea Taheri and Amir Dehghan for their help during the collection of some of the specimens, and Ali Mohajeran (Department of Environment) for photographing the live specimens of the new species. Y.M. Marusik wishes to thank Sergei L. Zonstein for advice on taxonomy of the family. The English of the earlier draft was kindly checked and corrected by James W. Berry.