Lathys humilis
Creators: name: Marusik, Yuri
name: Koponen, Seppo
name: Fritzén, Niclas
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Dictynidae
Lathys
Lathys humilis

description: <i>Lathys humilis</i> (Blackwall, 1855) Figs 1-3, 7-9, 13-16, 20-22, 26-27 <i>L. h.</i>: Wiehle 1953: 102, f. 222-227 (♁ &amp;female;). <i>L. h.</i>: Thaler 1981: 127, f. 77-79, 85-86 (♁ &amp;female;). <i>L. h.</i>: Almquist 2006: 319, f. 280a-h (♁ &amp;female;). For other references, see Platnick (2009). Some of them may refer to <i>L. nielseni</i> or other species. <b>Misidentifications:</b> <i>L. h.</i>: Schenkel 1936: 14, f. 1a-b (&amp;female;). May refer to undescribed species. <i>L. h.</i>: Lehtinen 1967: 242, f. 264 (♁). Refers to <i>L. nielseni.</i> <i>L. h.</i>: Palmgren 1977: 22, f. 4.20-24 (♁ &amp;female;). Refers to <i>L. nielseni.</i> <i>L. h.</i>: Paik 1978: 185, f. 75.1-5 (&amp;female;). Seems to refer to <i>L. maculosa</i> (Karsch, 1879). <i>L. h.</i>: Hu 1984: 60, f. 55. 1-2 (&amp;female;). Refers to <i>L. nielseni.</i> <i>L. h.</i>: Zhu 1985: 58, f. 48a-c (♁). May refer to <i>L. nielseni</i> or to <i>L. annulata.</i> <i>L. h.</i>: Song et al. 1999: 364, f. 215N (♁). May refer to <i>L. nielseni</i> or to <i>L. annulata. L. h.</i>: Song et al. 2001: 287, f. 181A-B (♁). May refer to <i>L. nielseni</i> or to <i>L. annulata.</i> <b>Material examined</b> . DENMARK: 1&amp;female; (ZMT: AA 11.130), Bornholm Isl., Ibsker, Paradisbakkerne Grydedal, in small sphagnum beds around a small pond, 30.06.1967 (P.T. Lehtinen). BULGARIA: 1&amp;female; (ZMMU), Blagoevgrad Distr., Rila Mt. range, ESE slope of Karpatnik Mt., Bodovitsa River Valley, right riverside, ca 3.8 km WNW of Bachevo, <i>Pinus – Fagus</i> forest, 41°56’12”N, 23°24’09”E, 1230 m, 10.08.2005 (A. Gromov). UKRAINE: 35♁ &amp;female; (ZMUT, ZMMU) <b>Crimea</b>, Simferopol Distr., Chatyr-Dagh Mt., 23.04.2000 (D.S. Letova); Feodosya Distr., Karadag Nature Reserve, Kara-Agach Mt., <i>Juniperus excelsa,</i> sweeping, 14- 16.05.2008 (A. A. Nadolny); Yalta Distr., Martyan Cape Reserve, 30.04.- 13.05.2007 (M.M. Kovblyuk); 1♁ (ZMMU), <b>Ternopil’</b> Area, environs of Dzvynyach Village, old nest of <i>Sylvia atricapilla</i>, on bush 0.9 m above the ground, 5.05.2006 (M. Fedo- ryak). AZERBAIJAN: 2♁ 31&amp;female; (ZMMU), SE Azerbaijan, Lenkoran Dist., environs of Aurora Village, 38°40’N 48°52’E, 23- 28.04.2001 (Yu.M. Marusik); 1♁ (ZMMU) same locality and collector, 21- 29.05.2003; 2&amp;female; (ZMMU), SE Azerbaijan, Lenkoran Distr., Hyrcan Reserve, environs of Apo Village, 38°38’N 48°47’E, 28.05.2003 (Yu.M. Marusik); 1♁ (ZMMU), SE Azerbaijan, ca 10 km W of Astara Village, Isti-Su, 38°27’N 48°47’E, 25.04.2001 (Yu.M. Marusik). IRAN: 2&amp;female; (ZMMU), Mazandaran Prov., Nashtarood-Khoshkadaran, 51.033°E 36.750°N, 9- 10.06.2000 (Yu.M. Marusik). <b>Description.</b> Measurements (Crimean specimens). <b>Male</b>. Total length 1.7; carapace 0.9 long, 0.7 wide, 0.4 high; chelicerae 0.5 long. Variation (n=2): total length 1.6-1.7; carapace 0.8-0.9 long, 0.6-0.7 wide; 0.4 high. [table omitted] <b>Colouration.</b> Carapace in both sexes without distinct pattern. Males slightly dark- er than females. Abdomen with distinct pattern consisting of white guanine dots, black pigment (cardiac mark, sides, and wide posterior band). Legs with distinct annulations. <b>Copulatory organs.</b> Male palp (Figs 7-9, 13-16) with patellar apophysis, tibia with three apophyses (retrolateral dorsal, retroventral and retrolateral (or intermediate) that fix (lock) terminal part of conductor. Conductor very long with two arms. Upper arm coiled, and terminal part spine-like and slightly twisted. Epigyne as in Figs 20, 26-27 with one shallow fovea, and copulatory openings placed in apical-lateral part of fovea. Receptacula droplet-shaped. Insemination ducts short and forming one turn. <b>Diagnosis.</b> <i>Lathys humilis</i> can be easily distinguished from the closely related <i>L. nielseni</i> by the abdominal pattern consisting of dark stripes and white spots formed from guanine deposits (Figs 1-3). White guanine deposits are totally absent in <i>L. nielseni</i> (Figs 4-6). The two species can also be separated on the basis of the copulatory organs. The epigyne of <i>L. humilis</i> has shorter insemination ducts turned upwards in the place where they are attached to the spermathecae. The females also differ in the shape of the fovea (cf. Figs 20, 30). In <i>L. humilis</i> the epigynal fovea is subdivided by the septum, fovea deep with distinct margins (there is no septum and there are no distinct margins of the fovea in <i>L. nielseni</i>). The male palps of the two species are more similar than the epigynes. The two species can be separated by the thicker and broader patellar apophysis in <i>L. humilis</i>, the shape of the dorsal tibial apophysis, and the thicker and longer tip of the conductor in <i>L. humilis.</i> <i>L. humilis</i> can be distinguished from the Japanese <i>L. annulata</i>, treated for a long time as a junior synonym, by its droplet-shaped spermathecae and its shorter insemination duct forming one loop only (vs. round spermathecae and insemination ducts forming several coils, cf. figs 10-12 in Ono 2003). <b>Distribution.</b> According to the Platnick’s (2009) catalogue, this species has a Palaearctic (=trans-Palaearctic) distribution with several records from China (Shandong, Anhui, Shanxi and Gansu), Taiwan and Korea. Judging from the figures of the Chinese specimens, all records of <i>L. humilis</i> refer to <i>L. nielseni</i> or another species (males of <i>L. annulata</i> are unknown). Judging from the figures (cf. Fig. 32) the record of this species from Shandong (Hu 1984) refers to <i>L. nielseni</i>. Other records of <i>L. humilis</i> from eastern China based on males may also refer to <i>L. nielseni</i> or <i>L. annulata</i>. The actual species belonging of “ <i>L. humilis</i> ” from Gansu (Schenkel 1936) remains unclear. Figures of the epigyne made by Schenkel are dissimilar to those of <i>L. humilis</i> or <i>L. nielseni</i>. The specimen stored in the Swedish Museum of Natural History, Stockholm lacks an epigyne and the abdominal pattern is indistinct. The record of this species from Korea (Paik 1978) refers to <i>L. maculosa</i> (Karsch, 1879), which belongs to the <i>Lathys stigmatisata</i> -group. According to our studies of the Palaearctic <i>Lathys</i>, <i>L. humilis</i> seems to be distributed from western Europe to Caucasus and Mazandaran, northern Iran (see “material examined”). The overlapping ranges of <i>L. humilis</i> and <i>L. nielseni</i> in SW Sweden may be caused partly by misidentifications. Both species were found, however, in samples from Öland in the Swedish Museum of Natural History. <b>Habitats.</b> According to Hänggi et al. (1995), <i>L. humilis</i> is found in Europe especially in coniferous forests (both spruce and pine), on the forests’ edges, in field shrubs and hedges, and less frequently in deciduous forests. It has been collected mostly on trees, both in canopies and on stems (Hänggi et al. 1995). According to Roberts (1995), in Great Britain it occurs on bushes and trees with small, hard leaves (heather, gorse, box, yew). Harvey et al. (2002) reported this species from bushes and trees in woodland and scrub, on oak, yew, pines, gorse, etc. It may also be fairly common on ornamental evergreen and privet hedges in parks and gardens; juveniles overwinter in leaf litter, brushwood, under bark and in other similar places (Harvey et al. 2002). In Sweden the species was reported from litter in dry pine forests, from <i>Calluna</i> -stands and from litter in woods with oaks and on limestone (Almquist 2006). <b>Note.</b> Lehtinen (1967) synonymised three species with <i>L. humilis</i>: <i>L. annulata</i> (Japan), <i>Altella nielseni</i> Schenkel, 1932 (Sweden) and <i>Altella lathysoides</i> Denis, 1937 (Algeria). The first two names were removed from synonymy by Ono (2003) and Thaler (1981) respectively.
description: Published as part of <i>Marusik, Yuri, Koponen, Seppo &amp; Fritzén, Niclas, 2009, On two sibling Lathys species (Araneae, Dictynidae) from northern Europe, pp. 181-195 in ZooKeys 16 (16)</i> on pages 184-189, DOI: 10.3897/zookeys.16.228, http://zenodo.org/record/292442
description: {"references": ["Wiehle H (1953) Spinnentiere oder Arachnoidea (Araneae), IX: Orthognatha - Cribellatae - Haplogynae - Entelegynae. Die Tierwelt Deutschlands und der angrenzenden Meeresteile 42: 1 - 150.", "Thaler K (1981) Bemerkenswerte Spinnenfunde in Nordtirol (Osterreich). Veroffentlichungen des Museum Ferdinandeum (Innsbruck) 61: 105 - 150.", "Almquist S (2006) Swedish Araneae, part 2, families Dictynidae to Salticidae. Insect Systematics and Evolution Suppl. 63: 285 - 603.", "Platnick NI (2009) The world spider catalog, version 9.5. American Museum of Natural History, http: // research. amnh. org / entomology / spiders / catalog / index. html [accessed 10.02.2009]", "Schenkel E (1936) Schwedisch-chinesische wissenschaftliche Expedition nach den nordwestlichen Provinzen Chinas, unter Leitung von Dr Sven Hedin und Prof. Su Ping-chang. Araneae gesammelt vom schwedischen Artz der Exped. Arkiv for Zoologi 29 (A 1): 1 - 314.", "Lehtinen PT (1967) Classification of the Cribellate spiders and some allied families, with notes on the evolution of the suborder Araneomorpha. Annales Zoologici Fennici 4: 199 - 468.", "Palmgren P (1977) Die Spinnenfauna Finnlands und Ostfennoskandiens VIII. Fauna Fennica 30: 1 - 34.", "Paik KY (1978) Araneae. Illustrated Flora &amp; Fauna of Korea 21: 1 - 548.", "Hu JL (1984) The Chinese spiders collected from the fields and the forests. Tianjin Press of Science and Techniques, 482 pp. [in Chinese]", "Zhu MS (Ed.) (1985) Crop field spiders of Shanxi Province. Agriculture Planning Committee of Shanxi Province, 239 pp.", "Song D, Zhu M, Chen J (1999) The Spiders of China. Hebei Science and Technology Publishing House, Shijiazhuang, 640 pp.", "Song D, Zhu M, Chen J (2001) The Fauna of Hebei, China: Araneae. Hebei Science and Technology Publishing House, Shijiazhuang, 510 pp.", "Ono H (2003) A new dictynid spider from Iriomotejima Island, southwest Japan, with a list of Japanese species of the genera Lathys and Brommella (Arachnida, Araneae). Bulletin of the National Science Museum Tokyo (Ser. A) 29: 7 - 13.", "Marusik YM, Kovblyuk MM, Nadolny AA (2009) A survey of Lathys Simon, 1884 from Crimea with resurrection of Scotolathys Simon, 1884 (Aranei: Dictynidae). Arthropoda Selecta 18 (1 / 2): 21 - 33.", "Hanggi A, Stockli E, Nentwig W (1995) Habitats of Central European spiders. Miscellanea Faunistica Helvetiae 4: 1 - 460.", "Roberts MJ (1995) Collins Field Guide: Spiders of Britain and Northern Europe. Harper Collins, London, 383 pp.", "Harvey PR, Nellist DR, Telfer MG (Eds) (2002) Provisional atlas of British spiders (Arachnida, Araneae), volume 2. Biological Records Centre, Huntingdon, 215 - 406.", "Schenkel E (1932) Verzeichnis der von E. Nielsen auf Oland und Smaland gesammelten Spinnen. Entomologisk Tidskrift 53: 202 - 209."]}