Larentiinae (Lepidoptera, Geometridae) from Mongolia, I. *

Transcription

1 ANNALES HISTORICO-NATURALES MUSEI NATIONALIS HUNGARICI T o m u s 70. Budapest 1978 Larentiinae (Lepidoptera, Geometridae) from Mongolia, I. * by A. M. VoJNiTS, Budapest Abstract Discussion o f nine species and subspecies. Ortholitha kaszabi sp. n. and Lithostege coassata mongolica ssp. n. are new to science, while Lithostege coassata ochraceata STGR. is new to the fauna o f M o n g o l i a. W i t h 3 figures. The present paper discusses the first, smaller part o f Larentiinae species collected by Z. K A S Z A B, in M o n g o l i a. The value o f the material is especially enhanced by the fact that the species are represen ted by several, or i n many cases large series o f exemplars. 1. Ortholitha chenopodiata sibirica B A N G - H A A S, 1907 ( D. ent Z. Iris, 20 : 82). The M o n g o l i a n occurrance o f the subspecies sibirica B. - H., described from the M t s. Kentei, has been recorded also by V I I D A L E P P (1975). The species ranges f r o m Europe to the Far East. Collection data. B u l g a n a i m a k : N a m n a n ul Gebirge, 23 k m N W v o n Somon Chutag, 1150 m, 2 1. V I I ( N r. 1137), 2 9 ; 7 k m N W v o n Somon Chanzargalant, 1350 m, 22. V I I (Nr. 1140), 8 9. C e n t r a l a i m a k : Ulan-Baator, N u c h t im Bogdo u l, m, V I I ( N r. 293), 2 9 ; idem, 2000 m, 27. V I I ( N r. 745), 1 cf ; SO v o n Somon Bajancogt, 1600 m, 27. V I I ( N r. 751), 1 cf} H k m OSO von Somon Bajancogt, 1600 m, 26. V I I (Nr. 1153), 1 cf. C o j b a l s a n a i m a k : Chamardavaa u u l, 80 k m SO von Somon Chalchingol, 600 m, 12. V I I I ( N r. 399) 1 çf ; S o m o n C h a l c h i n g o l, 600 m, 13. V I I I ( N r. 409), 1 9 ; 15 km N von Somon Galuut, 850 m, 17. V I I I ( N r. 435), 2 çf. 2. Ortholitha kaszabi sp. n. ( F i g. 1) D i a g n o s i s. A l a r expanse o f the t w o k n o w n male specimens 27.5 and 28 m m. Wings rather elongated, also costa o f fore w i n g convexely arcuate. Basic colour o f wings a pale, pruinose greyish b r o w n. The slightly convex decurrence o f antemedian on fore w i n g slightly angulate medially, but rightangled at costa. Postmedian w i t h a smaller, and a longer, semicircular, concave section. Anteand postmedians marked, dark b r o w n. Basal field bisected by a paler, b r o w n line, at a ratio o f 1/3-2/3. I n median field, antemedian backed by a single, postmedian by a triple shadowy line. Discal spot minute, rounded, b r o w n. M i d d l e o f wide terminal field with a centrally constricted grey stripe; also termen grey. A p i c a l area w i t h a dark b r o w n cuneiform spot. H i n d wing pale, median stripe decurrent i n an elongated W-shape; w i n g area towards base unicolorous yellowish grey, towards margins w i t h darker grey stripes (as i n terminal field o f fore wing). Underside o f wings yellowish grey, pattern ele ments well discernible. Cilia w i t h short, greyish yellow to grey striation, shiny. G e n i t a l i a. çf: Rather stout as a whole. Valvae short, triangular. V i n c u l u m angulate. Uncus large, arcuate. Aedoeagus long, cylindrical, straight, w i t h o u t any sclerotized formations (Fig. 1 ). 9 u n k n o w n. B i o l o g y. First stages and foodplant u n k n o w n. The k n o w n specimens were collected i n the middle o f July. D i s t r i b u t i o n. Ranging in M o n g o l i a. Locus typicus: A l a g M o r t, near the river Tesijn gol, 1900 m. : S p e c i f i c d i f f e r e n c e s. T h e n e w species r e m i n d s o n e o f O. peribolata HBN., but i t is larger, the basal field o f the fore w i n g r a t h e r patternless, the decurrence o f the postm e d i a n is different, a n d the t e r m i n a l field is also m o r e u n i f o r m. I t also resembles the c o n s i d e r a b l y larger O. lantoscona W E H R L I, at least some e x e m p l a r s o f this species, b u t t h e y are w e l l Ergebnisse der zoologischen Forschungen von D R. Z. K A S Z A B in der Mongolei, N r

2 192 A. M. VOJNITS distinguishable b y the c o n f i g u r a t i o n o f the m e d i a n O. carsicola field. A s r e g a r d s size a n d c o l o r a t i o n, S T D. appears t o be n e a r l y r e l a t e d, b u t t h e t w o species c a n easily be separated b y the d e c u r r e n c e o f the antemedian w h i c h tends b a s a l i n carsicola a n d apical i n the n e w species. H o l o t y p e, - f : " M o n g o l i a : C h ö v s g ö l a i m a k : A l a g m o r t, 4 2 k m N O v o m Pass Chaldzan Sogotyn davaa, am Fluss Tesijn g o l, m, E x p. D R. Z. K A S Z A B, " " N r V I I " " G e n. prep. N o çf D R. A. VOJNITS Budapest T T M ". P a r a t y p e : 1 c f, idem. H o l o t y p e and paratype deposited i n the H u n g a r i a n N a t u r a l H i s t o r y M u s e u m, Budapest. S l i d e s : N o s , (çf), gen. prep. A. VOJNITS. ( 3. Mesotype virgata H U F N A G E L, (Berk M a g á z. 4 : ). T h e species, ranging i n E u r o p e, Siberia, and the A m u r region, was first shown f r o m M o n g o l i a by V I I D A L E P P ( ). Collection data. A r c h a n g a j a i m a k : Changaj Gebirge, 8 k m W v o n Somon U r d t a m i r, m, 18. V I ( N r ), 2 c f ; Changaj Gebirge, zwischen Somon I c h t a m i r u n d Somon C u l u u t, cca 2 0 k m W v o n Somon I c h t a m i r, 3 k m S v o m T a l des Flusses Charnuj g o l, m, 1 9. V I T ( N r ), 1 c f. B u l g a n a i m a k : 1 1 k m W v o n Somon Bajannuur a m S ü d r a n d des Sess Bajan nuur, m, 1 4. V I V I T ( N r ), 1 c f ; zwischen Somon C h i s c h i g - Ö n d ö r u n d S o m o n O r c h o n, 2 3 k m N N O v o n C h i s c h i g - Ö n d ö r, m, 15. V I ( N r ), 1 r* ; N a m n a n u l Gebirge, 2 3 k m N W v o n Somon Chutag, m, 1 7. V I ( N r ), 1 çf; idem, 2 1. V I T ( N r ), 2 4 çf, 2 9 ; 7 k m N W v o n Somon Chanzargalant, m, 2 2. V I I ( N r ), 6 çf, 2 $. C e n t r a l a i m a k : 2 6 k m O v o n Somon L u n, m, 3. V I T ( N r ), 1 çf ; SO v o n So m o n Bajancogt, m, 1 1. V I ( N r ), 1 çf ; 2 5 k m O v o n Somon L u n, m, 2 5. V I L ( N r ), 1 4 c f ; 1 1 k m OSO v o n S o m o n Bajancogt, m, 2 6. V I L ( N r ), 1 cf. C h e n t e j a i m a k : zwischen Somon Cenchermandal u n d Somon Zargaltchaan, 1 0 k m O v o n Cenchermandal, m, 2 7. V I I ( N r ), 1 c f ; 7 k m N O v o n Somon M ö r ö n, m, 2 8. V I L ( N r ), 1 çf; k m O N O v o n Ö n d ö r c h a a n, 1 0 k m S v o m Fluss K e r u l e n u n d 1 0 k m N v o n Somon Tumuncogt, m, 3 0. V I I ( N r ), 8 c f. S u c h e b a a t o r a i m a k : Chadatin-bulan, 6 0 k m N v o n Somon Bajanterem, m, 3 1. V I T ( N r ), 1 c f. Slides: N o s , ( c f ), gen. prep. Á. M É S Z Á R and A. VOJNITS. 4. Stamnodes daniiovi ERSCHOV, ( H o r. E n t. Ross., 1 2 : ). The species, demonstra ted f r o m Kasahstan, Siberia, the Tuva area, M o n g o l i a, and N o r t h e r n Tibet, was recorded f r o m M o n golia also by V I I D A L E P P ( ). Fig. 1. M a l e genitalia and aedoeagus separated o f Ortholitha kaszabi sp. n. Scale 1 m m

3 Collection data. A r c h a n g a j a i m a k : Changaj Gebirge, 8 k m W v o n Somon U r d t a m i r, 1620 m, 18. V I ( N r. 537), If; idem, 2 1. V I I ( N r. 722), 1 9. B u l g a n a i m a k : 7 k m N W v o n Somon Chanzargalant, 1350 m, 16. V I ( N r. 968), 4 çf ; idem, 22. V I I ( N r. 1140), 1 f. C e n t r a l a i m a k : Borulcin tala, cca 100 k m SO v o n Ulan-Baator, 1400 m, 5. V I I ( N r. 89), 1 9 ; SO v o n Somon Bajancogt, 1600 m, 27. V I I ( N r. 751), 1 9 ; 11 k m S v o m Pass Zosijn davaa, (cca 90 k m S v o n Ulan-Baator), 1650 m, 16. V I I ( N r. 920), 1 9 ; Tosgoni ovoo, 5-10 k m N v o n Ulan-Baator, m, , V I I ( N r. 925), 1 çf, 4 9 U V s a i m a k : a m Fluss Changilcagijn gol, 6 k m SW v o n Somon B a r u u n t u r u u n, 1350 m, 24. V I ( N r. 1009,1011), 4 c f. 5. Baptria tibiale ESPER, 1790 (Schmett. A b b i l d., 4 : 568). The species, rare Caucasus area and more frequent i n the Far East (Siberia, Japan, K o r e a ), was first golia by V I I D A L E P P (1975). I n his o p i n i o n, the f o r m eversmanniaria H.-S. occurs i n C o l l e c t i o n data. C e n t r a l a i m a k : Ulan-Baator, Zaisan i m Bogdo 13. V I ( N r. 126), 1 of. i n Europe and the shown f r o m M o n Mongolia. u l, m, 6. Schistostege nubilaria H Ü B N E R, 1799 (Sammlg. Eur. Schmett. Geom., 2 : 512). This species, ranging in East Europe, Southern Russia, the U r a l, Kasahstan, Siberia, the Tuva area, the Caucasus and M o n g o l i a, is recorded also i n V I I D A L E P P ' S (1975) paper. The large series deriving f r o m K A S Z A B ' S expeditions permits a microsystematical treatment o f the species, to be made i n the next future. I n the present paper, 1 call attention only to the conspicuous greyish hue o f the exemplars collected i n Chentej-aimak. Collection data. A r c h a n g a j a i m a k : Changaj Gebirge, 8 k m W v o n Somon U r d t a m i r, 1620 m, 2 1. V I I ( N r. 722, 725), 3 f- B u l g a n a i m a k : 5 k m W v o n Somon Daschincilen, 1140 m, 2. V I I ( N r. 253), 3 çf ; N a m n a n u l Gebirge, 23 k m N W v o n Somon Chutag, 1150 m, 2 1. V I I ( N r. 1137), 2 c f ; 7 k m N W v o n Somon Chanzargalant, 1350 m, 22. V I T 1968 ( N r. 1140), 11 çf. C e n t r a 1 a i m a k : 26 k m O v o n Somon L u n, 1180 m, 3. V I T 1964 ( N r. 260), 15 c f ; SO v o n Somon Bajancogt, 1600 m, 4. V I L 1964 ( N r. 263, 267), 5 rf ; idem, 27. V I I ( N r. 751 ), 5 c f ; 11 k m OSO v o n Somon Bajancogt, 1600 m, 26. V I L 1968 ( N r. 1153), 1 çf. C h e n t e j a i m a k : zwischen Somon Cenchermandal u n d Somon Zargaltchaan, 10 k m O v o n Cenchermandal, 1400 m, 27. V I I ( N r. 313), 25 çf. C h ö v s g ö 1 a i m a k : A l a g M o r t, 42 k m N O v o m Pass Chaldzan Sogotyn davaa, a m Fluss Tesijn g o l, 1900 m, 14. V I I ( N r. 1108), 1 c f ; a m See Tunamal nuur, 26 k m S W v o n Somon Scharga, 1950 m, 15. V I I ( N r. 1112), 2 c f ; 8 k m N v o n Somon Alag-erdene, a m Fluss Egijn gol, 1600 m, 17. V I I ( N r. 1121), 2 c f ; N v o n Somon Chatgal a m SW-Ecke des Sees C h ö v s g ö l nuur, 1650 m, 18. V I I ( N r. 1124), 2 çf; 4 k m N W v o n der Stadt M ö r ö n, 1500 m, 19. V I I ( N r. 1128), 4 c f. 7. Lithostege mesoleucata PÜNGELER, 1899 ( D. ent. Z. Iris, 12: 105). T h e species, described f r o m the Hi region, was first shown f r o m M o n g o l i a by V I I D A L E P P (1975). A c c o r d i n g to h i m, meso leucata is a characteristic species o f the Central Asiatic steppes. V I I D A L E P P also published the figure of the male genitalia, n o w t o be supplemented by the female genitalia o n the basis o f K A S Z A B ' S ma terial (Fig. 2). Collection data. G o b i A l t a j a i m a k : zwischen dem See Beger nuur u n d Somon Beger, 1400 m, 25. V I ( N r. 580), 2 c f, 1 9! n u u r y n u r d els, am SO Ecke des Sees D ö r ö ö nuur, cca 1200 m, 12. V I I ( N r. 680), 1 çf ; M o n g o l els, 10 k m SO v o n Somon Chechmort, 1600 m, 13. V I I ( N r. 684), l çf. M i t t e l g o b i a i m a k : 8 k m N W v o n den R u i n e n des Klosters Oldoch C h i j d, 54 k m N N W v o n Somon Cogt-Ovoo, 1350 m, 9. V I I ( N r. 905), 1 9. O s t g o b i a i m a k : Cagan els, 30 k m OSO v o n Zuun-Bajan, 800 m, 22. V I ( N r. 21), 1 $. 5 ü d g o b i a i m a k : 60 k m W v o n Somon Bulgan, 1120 m, 20. V I ( N r. 162), 1 9 ; G u r b a n Sajchan u l Gebirge, zwischen Somon C h u r m e n u n d Somon Bajandalaj, 24 k m N W v o n C h u r m e n, 1550m, 14. V I ( N r. 800), 21 c f, 2 9 ; S W R a n d des Sees D u n d gol (am a l t e n " Somon G u r b a n tes), 1300 m, 18. V I ( N r. 817), 1 c f, 1 9 ; N o j o n n u r u u Gebirge, Grenzposten Ovot C h u u r a l, 1500 m, 20. V I ( N r. 827), 1 c f ; Baján Cag, 20 k m N O v o n Somon Bulgan, 1200 m, 6. V I I ( N r. 892), 1 c f ; abfiussloses Becken 10 k m N N O v o n der Stadt Dalanzadgad, 1450 m, 7. V I L 1967 ( N r. 898), 5 c f, S l i d e s : N o s , ( 9 ), gen. prep. Á. M É S Z Á R and A. VOJNITS. B a a 8. Lithostege coassata ochraceata S T A U D I N G E R, 1897 ( D. ent. Z. Iris, 10: 72). The fore wings of typical specimens o f the subspecies described f r o m the A m u r region are light ochreous, the white transverse stripes partially evanescent, the veins especially i n the median field covered by dark sclaes. H i n d w i n g definitely greyish. A number o f light-coloured exemplars also occur i n the M o n g o l i a n series, but they are never like the species described hereunder, rather they are w o r n exemplars. N e w to then fauna o f M o n g o l i a. 1 3 Természettudományi M ú z e u m Évkönyve 1978.

4 Collection data. A r c h a n g a j a i m a k : 20 k m N von C h a r c h o r i n, 1640 m, 30. V I (Nr. 233), 34 c f ; 30 k m S v o m See Ogij nur am Chogschin-Orchon, 1450 m, 1. V I I ( N r. 245), 3 c f. B a j a n c h o n g o r a i m a k : SO Ecke des Sees O r o g nur, 1200 m, 24. V I ( N r. 186), 1 cf B u l g a n a i m a k : 5 k m W von Somon Daschincilen, 1140 m, 2. V I I ( N r. 253), 53 c f ; 9 k m O von Somon Abzaga, 1300 m, 22. V I I ( N r. 728, 729), 2 c f ; 11 k m W v o n Somon Bajannuur a m S ü d r a n d des Sees Bajan nuur, 1000 m, 14. V I V I I ( N r. 958), 2 c f ; idem, 24. V I I ( N r. 1144), 4 c f, 2 $. C e n t r a l a i m a k : Onzulin chundi, 100 k m SW v o n Ulan-Baator, 1400 m, 15. V I ( N r. 128), 4 c f ; 26 k m O von Somon L u n, 1180 m, 3. V I I (Nr. 260), 5 c f, 3 9 ; Zuun-Chara, 800 m, 8. V I I ( N r. 285), 2 c f ; T a l des Flusses T o l a, zwischen Somon A l t a n b u l a g und Somon Tariat, cca 30 k m O N O von Somon Tariat, 1200 m, 24. V I I ( N r. 742), 2 c f, 1 9 ; 12 k m S von Somon Bajanbaarat, 1380 m, 13. V I I ( N r. 919), 1 c f. C h e n t e j a i m a k : 15 k m O von Ö n d ö r c h a a n, 1 k m S v o m Fluss Kerulen, 1000 m, 29. V I I ( N r. 325), 5 c f, C h ö v s g ö l a i m a k : 6 k m W N W v o n Somon Tosoncengel, 1480 m, 18. V I ( N r. 981), 6 c f, 3 9 ; zwischen Somon Cecerleg und Somon Bajan-ul, 65 k m W v o n Cecerleg, 1700 m, 22. V I ( N r. 1003), 2 f ; 4 k m N W von der Stadt M ö r ö n, 1500 m, 19. V I L 1968 ( N r. 1128), 2 c f. C o j b a l s a n a i m a k : Menengijn tal, 80 k m W S W v o m SW Ecke des Sees Bujr nur, 600 m, 14. V O L 1965 ( N r. 415), 1 r f. U b u r c h a n g a j a i m a k : Changaj Gebirge, 21 k m O von Somon Narijnteel, 2080 m, 27. V I ( N r. 213), 1 9. S l i d e s : Nos , ( f ), gen. prep. A. VOJNITS. c 9. Lithostege coassata mongolica ssp. n. (Fig. 3) D i a g n o s i s. Only males k n o w n so far, their average alar expanse: 24 m m, extreme values: m m. Shape o f fore wings corresponding to that o f nominate subspecies. Basic colour a very light whitish or yellowish grey, fore and h i n d wings o f about similar or identical coloration. Pattern of fore wing greyish yellow and white, in most cases hardly discernible or completely obscured. Under side o f wings shiny, fore wing slightly darker, h i n d w i n g lighter, yellowish white. Cilia short, shiny white. G e n i t a l i a, c f O n the whole, similar to those o f nominate subspecies, excepting m u l t i p l y curved aedoeagus w h i c h, by this feature, differs both f r o m that o f nominate subspecies and o f ssp. ochreata STGR., also occurring in M o n g o l i a (Fig. 3). 9 u n k n o w n. B i o l o g y. First stages and foodplant u n k n o w n. The k n o w n specimens were collected in July. : Fig. 2. Female genitalia o f Lithostege mesoleucata P Ü N G. F i g. 3. M a l e genitalia and aedoeagus separated o f Lithostege coassata mongolica ssp. n. Scale 1 m m

5 Distribution. Ranging in Mongolia (Mittelgobi aimak, Suchebaator aimak, Uvs aimak. Locus typicus: Somon Delgercogt, 1480 m (Mittelgobi aimak). Subspecific differences. The typical form of the nominate subspecies of L. coassata HBN. is rather disputed; recently exemplars with a heavy pattern are considered typical, while earlier the unicolorous light ones have been regarded as such. From both of these and from all other described forms, the subspecies ochreata Mongolia, and mongolica STGR., occurring also in ssp. n., differ satisfactorily; the distinctness of the latter is substantiated both by external morphological characters and differences in genital configuration. In view of the fact that the genitalia of the Lithostege the comparatively slight (but constant!) divergence is convincing. species are rather of the same cast, Holotype, çf: "Mongolia: Mittelgobi aimak, 20 km S von Somon Delgercogt, 1480 m, Exp. DR. Z. KASZAB, 1967" "Nr. 916, 13. VII. 1967" "Gen. prep. No DR. A. VOJNITS Budapest TTM". Paratypes: 1. Mittelgobi aimak: 20 km S von Somon Delgercogt, 1480 m, 13. VII (Nr. 916), 14 çf. 2. Uvs aimak: am Fluss Chöndlön gol, 32 km NW von der Stadt Ulaangom, 1200 m, 7. VII (Nr. 1078), 1 çf. Holotype and paratypes deposited in the Hungarian Natural History Museum, Budapest. Slides: Nos , (-), gen. prep. Á. MÉSZÁR and A. VOJNITS. References BANG-HAAS, A. (1907): Neue oder wenig bekannte palaearctische Macrolepidopteren. D. ent. Z. fris, 20: PÜNGELER, R. (1899): Neue Macrolepidopteren aus Centrai-Asien. D. ent. Z. Iris, 12: STAUDINGER, O. (1897): Die Geometriden des Amurgebietes. D. ent. Z. Iris, 10: VIIDALEPP, J. (1975): On the fauna of geometrid moths (Lepidoptera, Geometridae) of the Mongolian People's Republic. Biological Resources and Natural Conditions of the Mongolian People's Republic VI., Insects of Mongolia, 3: (in Russian). Author's address: DR. A. M. VOJNITS Zoological Department Hungarian Natural History Museum H-1088 Budapest, Baross utca 13. Hungary

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