The Leaf-Rollers (Lepidoptera, Tortricidae) of Western Tuva, with Description of Cochylimorpha Arenosana Sp
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© Entomologica Fennica. 10 December 1998 The leaf-rollers (Lepidoptera, Tortricidae) of Western Tuva, with 1 description of Cochylimorpha arenosana sp. n. > Vladimir I. Kuznetsov, Jukka Jalava & Jaakko Kullberg Kuznetsov, V. 1., Jalava, J. & Kullberg, J. 1998: The Leaf-rollers (Lepidop tera, Tortricidae) of Western Tuva, with description of Cochylimorpha arenosa na sp. n.- Entomol. Fennica 9: 197-209. A list of 145 species of the family Tortricidae, recorded from the western part of Tuva, is presented. The material studied originates from a joint Finnish Russian expedition made in June 1995. Additional data have been taken from Ukrainian, Russian and German literature. Cochylimorpha arenosana n. sp. from sand dunes of Northern Mongolia is described. Three species, Falseunca ria lechriotoma Razowski, 1970,Acleris idonea Razowski, 1972 and Eucosma argentifera Razowski, 1972-all described from Mongolia- are reported as new for Russia. From the total of 145 species 138 can be placed into three main zoogeographical complexes: Holarctic/Palaearctic about 83 %, Mediter ranean-Central-Asiatic about 10% and endemic for the mountains of Central Asia about 7%. The Holarctic complex can be divided into four chorological groups: Holarctic (22 spp.), Transpalaearctic (65 spp.), Western Palaearctic (12 spp.) and Eastern Palaearctic (13 spp.). Subalpine meadows and grazed steppes of Mongun-Taiga and the Tannu-Ola Mnts. are inhabited by some endemics of the Central-Asian mountains (11 spp.). Vladimir I. Kuznetsov, Zoological Institute, Russian Academy of Sciences, Universitetskaya nab. 1, St. Petersburg, 199034 Russia Jukka fa lava & Jaakko Kullberg, Finnish Museum of Natural History, Zool ogical Museum, P. 0. Box 17 (P. Rautatiekatu 13), FIN-00014 University of Helsinki, Finland Received 23 May 1997, accepted 6 August 1998 1. Introduction lished from Central-Siberia, e.g., Falkovich (1970, from the Kuznetskiy Ala-Tau) and Kuznetsov and The mountains of Tuva form a border between Jalava (1988, from the Altai and Hamar-Daban). the boreal forests and the arid steppes. Certain From Mongolia, three atticles about Tortricidae mountain ranges (e.g., the Sayan and the Tannu have been published: Razowski (1966, 1972) and Ola Mnts.) have been a barrier for many Central Kuznetsov (1975). Most of the material for stud Asiatic endemics to extend their distribution area ies of the Mongolian fauna originates from the north of Tuva. The fauna of Tuva contains many expeditions organized by Dr. I. M. Kerzhner from local Tuvian-Mongolian steppe species. St. Petersburg Zoological Institute and by Dr. Z. Kas Some articles about Tortricidae have been pub- zab from the Hungarian National Museum in Bu- 1> Report no. 24 from the joint Finni h - Ro sian Arachno-Entomologbil expedition to Siberia (Project 20). 198 Kuznetsov et al.: The leaf-rollers of Western Tuva • ENTOMOL. FENNICA Vol. 9 KRASNOYARSKY KR '"' 98• Fig. 1. Map of Tuva with the most important collect ing localities. dapest. Specimens labelled 'Ost-Tannuola, Sha period 3.-19.VI.l995. The material, altogether about 400 wyr', studied by Rebel in 1917 do not originate specimens, is mostly deposited in the Zoological Museum from Tuva, but from the upper flow of the River of Helsinki (MZH), some duplicates are in the Zoological Institute of St. Petersburg (ZIN). Shawryn-gol in Mongolia (Kuznetsov 1975). For nigth-time collecting two Osram' s Lumilux Combi The most important papers on the Tuvian Tor 18 W black-light tubes and one 125 W mercury vapour lamp tricidae are those by Ju. A. Kostjuk (1971, 1975b) with traps runned by a Honda 350 W generator were used. who made two expeditions to Tuva in 1968 and Netting and sweeping were used at daylight. 1969. His two additional articles deal with de The main collecting localities of the Finnish-Russian scriptions of new species (Kostjuk 1973, 1975a). expedition are:- 1: Ust-Uyuk, 52°04'N 94°22'E, 670 m a.s.l., where the River Uyuk flows into Yenisei, treeless The total catch of his material ofTortricidae was steppe hills, with Populus laurifolia stands by the River about 2 000 specimens belonging to 120 spp. His side. 3.- S.VI.- 2: Kyzyl, 51°43 'N 94°27'E, 700 m, a collection is deposited in the Zoological Museum semidesert-like arid biotope with autumn green vegetation of Ukrainian Academy of Sciences, Kiew. We called nanophyton-steppe with small hills just outside the have not studied this material, so our data is based town. No light-trapping. 5.-6.VI., 20.VI.- 3: Near Erzin, solely on the literature and may contain some mis 50°16'N 94°54'E, 1250 m. Even, grassy steppe with hills of sand-stone rising ca. 100m above the steppe. The slopes identifications. The doubtful cases are considered of the hills have a rich vegetation of different 'pea-bushes' in the third chapter under each species. (Caragana, Ononis etc.), Thalictrum, Artemisia and Poa ceae. The even steppe was in nearly natural condition, only a little pastured, mainly by horses. 7.-lO.VI. - 4: Tere 2. The study area, material and meth Khol, 50°0l'N 95 °03'E, 1 150m. Fine sand dunes by the Tere-Khol-lake shore, a comer of a huge, 300 km long sand ods dune area in northern Mongolia reaching westwards to Lake Ubsu-Nur. The dunes have a scarce vegetation with scat We restricted our studies to the western parts of Tuva, be tered pea-bushes, tufts of Poaceae and a very spiny Fabaceae cause no material is available from the easternmost parts. (Astragalus ? pycnophyllus). The camp was situated near The study area is situated between the Mountain mas the lake shore beside a small, wet Carex-Tomentypnum sives of Mongun-Taiga about 50°N 90°E in the west and (moss)- bog with Betula sp. and big trees of P. laurifolia. Chorumnug-Taiga about 50°40'N 96°E in the east (Fig. 1). 10.-12.VI.-5: Irbitei, 50°44'N 93°08'E, 1 000 m. Irbitei Most part of the area is steppe highland about 1 000 metres River valley. A narrow, steep-sloped valley with thick for above sea level. The lowest places are the capital of Tuva, est of Populus laurifolia and pea-bushes on the bottom, ris Kyzyl (700 m a.s.l.) and the salt-lake Ubsu-Nur (Uvs-Nuur) ing to dry Artemisia-steppes and scree slopes. The place 750 m, the highest one 3 500 m (Mongun-Taiga). had been inhabited and was heavily pastured. Beside the The present article treats the new materials collected in yurtas, Ballota sp., Chenopodium sp. and Urtica cannabina June 1995 by a Finnish-Russian joint expedition. The moths were growing. 13.-16. VI. - 6: Ubsu-Nur, 50°40' N were collected by Jukka Jalava and Jaakko Kullberg in the 92°58 'E, 750 m. Shore meadows of the big salt lake Ubsu- ENTOMOL. FENNICA Vol. 9 • Kuznetsov et al.: The leaf-rollers of Western Tuva 199 Nur. The vegetation near the shore was mainly tall broad colour varying from brownish to yellowish. Cilia leaved Poaceae and big and very spiny pea-bushes. Further yellowish. Hind wing and its cilia dirty white. from the shore there was an arid nanophyton-steppe. 15.VI. Male genitalia: Uncus absent. Socius with thin -7: Khol-Oozhu, 50°45'N 94°29'E, 1 200m. A narrow valley of a narrow and rapid mountain creek with Larix, hairs. Median process of transtilla very narrow. Alnus viridis and Populus laurifolia along it. The steppe Valva broad with laterally strongly widened, con slopes, rising about 150 m from the creek were especially cave sacculus, ending to strongly pointed apical rich in flowering meadows. 16.-19.VI.- 8: E-Tannu-Ola process. Aedeagus very simple, thick and almost 2 175m, 50°50'N 94°19'E. At the timberline (Larix, Pinus straight. Vesica with two cornuti of almost equal cembra). The last and highest steppe-slopes. 8.VI., 17 .VI. lenght: one thin and straight, the other thicker and The main collecting localities of Ju. A. Kostjuk were slightly curved. as follows:- 9: Mongun-Taiga. The highest mountains of Female genitalia: Unknown. Tuva, 300~3500 m, mountain pastures on alpine mead ows and mountain tundras.- 10: Mugur-Aksy and Shara Etymology.- The name arenosana refers to Sur. The Sagan-Shibetu Range-localities on the lower flow the habitat of the type locality, huge sand dunes ofTes-Khem River, 2 100m. -11: Samagaltai, Chorum of Northern Mongolia. nug-Taiga Range, 50 krn W of Samagaltai.- 12: Chundur Distribution. - Known only from the type gan. Western Tannu-Ola Mnts., Chundurgan pass in upper locality, Lake Tere-Khol on the Mongolian-Tu Ulug-Chundurgej River, 1900 m, mountain tundra.- 13: vian border. Tes-Khem River bank near Erzin. Biology.- Unknown, except the habitat and flight period: sand dunes in the first half of June. 3. Description of Cochylimorpha are no sana sp. n. 4. List of species Fig. 2 a, b, c. and male genitalia Fig. 3. Figs. 2 and 4. Type material. - Holotype d: Russia, Tuva rep. Lake Tere The systematics are according to Kuznetsov 1978 Khol, sand dunes, 10.-12.VI.1995, Jalava and Kullberg. Ho lotypeprep. no. 12/17.6.1996 J. Kullberg. !Odd paratypes: with some new nomenclatorical changes. The gen same data as holotype. Holotype and nine paratypes in coli. eral distributions are based on the literature by MZH, one paratype in coli. ZIN. Danilevsky and Kuznetsov (1968), Falkovich (1970), Razowski (1970, 1972), Kuznetsov Diagnosis.- The forewing pattern and col (1978), Hodges (1983), Kuznetsov and Jalava oration resembles that of C. hedemanniana (Snel ( 1988), Kuznetsov and Mikkola ( 1991 ), Karsholt len, 1883), but the forewing is more elongate, the and Razowski (1996) and Kuznetsov, Kaila and rusty brown coloration less distinct and the ground Mikkola (1996), some unpublished data is in colour more creamy.