(Teinopalpus) No. 62（2012）

Butterflies of Trashiyangtse Valley, eastern (Part 1) Sonam Wangdi1*, Karma Wangdi2*, Sherub2, Rinchen Wangdi3**, Sangay Drukpa3, Motohiro Harada4, Toshiaki Aoki5, Shuhei Yamaguchi5, Motoki Saito6, Yoshiko Igarashi7, Yasuyuki Watanabe8 and Masaya Yago4 1 Department of Forests and Park Services, Ministry of Agriculture and Forests, Royal Government of Bhutan, 1095 Thimphu, Bhutan 2 Ugyen Wangchuck Institute for Conservation and Environment, Ministry of Agriculture and For- ests, Royal Government of Bhutan, Lamai Goempa, Bumthang, Bhutan 3 Research and Monitoring Section, Bumdeling Wildlife Sanctuary, Trashiyangtse, Bhutan 4 The University Museum, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033 Japan 5 The Research Institute of Evolutionary Biology, 2-4-28 Kamiyoga, Setagaya-ku, Tokyo, 158-0098 Japan 6 2-16-1-802 Nakamachi, Musashino-shi, Tokyo, 180-0006 Japan 7 1-3-41 Shinoharakita, Kohoku-ku, Yokohama-shi, Kanagawa, 222-0021 Japan 8 3-8-12 Mukonoso, Amagasaki-shi, Hyogo, 661-0035 Japan Correspondence: [email protected] (Motoki Saito), [email protected] (Masaya Yago) Abstract Trashiyangtse Valley is located in far eastern Bhutan, a remote area bordering Tibet to the north and Aruna- chal Pradesh () to the east. Apart from a collection made by two English researchers in the early 1930s, the fauna of this area has been poorly studied. In 2011 and 2012, we had the opportunity to collect material from Trashiyangtse Valley. In total, about 130 butterfly species were recorded. Among these, the following 3 species are recorded for the first time from Bhutan: Apostictopterus fuliginosus, Neozephyrus suroia and Euthalia amplifascia. Our list is the first report on the butterfly fauna of Trashiyangtse Valley. Keywords Biodiversity, butterfly fauna, endemic species, inventory, new record, species richness

Introduction is about 500 km from the capital Thimphu (Fig. 1). The Bhutan appears to have a diverse butterfly fauna. The only previous study on the butterfly fauna of this area is country has a wide range of environments, from lowland the collection made by two English botanical researchers, to alpine, and climatic zones, including tropical monsoon, George Sherriff and Frank Ludlow. That collection is now temperate, subarctic and arctic. Previous publications housed in the Entomology collection of the BMNH (The have documented some of the of Bhutan (e.g. Natural History Museum, London), however, the list of Bingham, 1905; Talbot, 1939; Yazaki & Kanmuri, 1985), species captured was not published. and more recently a few illustrated books and lists have Through the Trashiyangtse Valley, Kulong Chu (Kulong been published (Piet Van der Poel & Tashi Wangchuk, river) runs from north to south in the Eastern 2007; Piet Van der Poel, 2010; UWICE, 2010; Yazaki, (Fig. 1, 2) and meets Gamri Chu near Tashigang at ap- 2012). Collectively, these works provide an overview of proximately 70 km south from the source located at a high the butterfly fauna of Bhutan, however, a comprehensive elevation of over 5,000 m. During our work on Ludlow’s list of butterflies is currently not available. For systematic Bhutan Glory, we made opportunistic observations on conservation planning it is desirable that a comprehensive other butterflies and collected many specimens along inventory of the Bhutanese fauna be undertaken. a trail or road running close to the river, particularly in In August-October 2011 and July 2012, we visited Trashi- Bumdeling Wildlife Sanctuary. In this report we present a yangtse Valley in Trashi Yangtse Dzongkhag (District), list of these incidental records, which is the first report on eastern Bhutan, primarily to search for Ludlow’s Bhutan the butterfly fauna of Trashiyangtse Valley.We also briefly Glory, ludlowi Gabriel, 1942 (Harada et al., discuss the biogeographical characteristics and conserva- 2012). This valley is a difficult place to access because it tion significance of the valley based on these results.

* These authors contributed equally to this paper. ** Present address: Canberra Institute of Technology, Vocational College of Canberra, Canberra, Australia. 16 (Teinopalpus) No. 62（2012）

Material and Methods (Fig. 1) The details of our study areas in Trashiyangtse Valley are as follows. GPS data were recorded using eTrex Vista HCx (Garmine). 1. Chazam (1,200 m) (Figs 3, 4) Junction to Trashi Yangtse (north) and Tashi- gang (east). The check point near the bridge crossing Kulong Chu is located there. With hot and dry air coming down from far-south, the Fig. 1. Map of Bhutan. environment is rather dry like a desert. Tropi- cal species such as Catopsilia pomona or Junonia orithya ing good habitat for forest butterflies such as Euthalia spp. were well observed. At the spot just before Bumdeling where Alnus nepalensis 2. Duksum [N 27°28.651 /E 91°32.925] (1,350 m) (Fig. 4) are abundant, Neozephyrus suroia was collected. This is Small village located 10 km north from Chazam. This area first record from Bhutan. Bumdeling village is 1-1.5 hour is dry as in Chuzam, and trees are scarce. by car and 3-4 hours on foot. 3. Duksum — Trashi Yangtse (1,350-1,750 m) (Fig. 5) 6. Bumdeling [N 27°39.498 /E 91°27.261] (1,900 m) (Figs Taking the route along the left bank of Kulong Chu above 9, 10) Duksum for more 10 km, the forest of tall trees begins to This village is located on the broad riverbank of Kulong appear from ca. 1,500 m. Evergreen broadleaf forest of Chu. Flat areas are well cultivated as rice terraces. Near the Quercus sp. or Lithocarpus sp. covers both sides of the village houses, very tall trees of Quercus griffithii are abun- route. The butterfly fauna is quite different from that in dant. These trees have been used as firewood by villagers for Chuzam or Duksum. Just before Trashi Yangtse, the forest a long time. This village is also famous as the wintering spot appears slightly drier, and pine trees are abundant. In some of the Black-necked crane (Grus nigricollis). places, slopes are too steep, and only the short Rhododen- 7. Bumdeling — Tarphel (1,900-2,230 m) (Figs 11) dron sp. barely grows. Near small streams on the route, De- After passing Bumdeling, the trail continues to the north lias sanaca is often seen mud-puddling. On forest canopy, along Kulong Chu. In the first 3 km of the trail, it is rela- several species of Euthalia are observed to fly rapidly. tively flat in a deep deciduous forest. The route goes down 4. Trashi Yangtse (Trashiyangtse) [N 27°36.553 /E once near Kulong Chu. After crossing two iron-bridges 91°29.897] (1,750 m) (Figs 2, 6) over small streams, the trail climbs steeply up a slope. The The headquarter of Trashi Yangtse province. The town environment around there is covered with a mixture of sec- stretches on the broad slope on the left bank of Kulong ondary forest and cultivated field. Chu. To the far-north, the snow-capped Himalayan moun- 8. Tarphel [N 27°44.503 /E 91°25.577] and its surround- tains are seen (Fig. 2). Beautiful rice terraces are here and ings (2,230-2,700 m) (Figs 12, 13) there in the town. A very famous, old monastery called Tarphel is located on a slope of the deep valley. The popu- “Chorten Kora” is located at the entrance of the town. It lation of this village is about 50 people forming eight fami- attracts many pilgrims from India as well as overseas tour- lies. Villagers grow maize, buckwheat or millet. This vil- ists. The monastery school which was formally used as an lage and the adjacent areas are surrounded by a mixture of old Dzong is on the small hill on the right bank (ca. 1,850m). primary forests of evergreen and deciduous broad-leaved An unpaved road runs through the thick deciduous forest trees and secondary forests of Q. griffithii. We surveyed near the building (Fig. 6). Some species are only recorded from this village up to ca. 2,700 m. from here. 5. Trashi Yangtse — Bumdeling (1,750-1,900 m) (Figs 7, 8) Crossing the iron bridge over Kulong Chu at the northern 1. The first survey: summer of 2011 end of Trashi Yangtse town, the unpaved muddy road runs (Participants: all members) along the right bank. Cars are available only in dry season. August 7, Chazam —Trashi Yangtse Evergreen broad-leaf forests cover along the road, provid- August 8, Trashi Yangtse and Bumdeling [divided into two

17 (Teinopalpus) No. 62（2012） groups, Bumdeling team (YI, SM) and old Dzong team (the University of Tokyo, SW = Sonam Wangdi, KW = Karma others)] Wangdi, MH = Motohiro Harada, TA = Toshiaki Aoki, SY August 9, Trashi Yangtse = Shuhei Yamaguchi, Motoki Saito = MS, Yoshiko Igarashi August 10, Trashi Yangtse — Bumdeling = YI, Yasuyuki Watanabe = YW, Masaya Yago = MY. August 11, Bumdeling — Tarphel August 12-18, Tarphel and the adjacent area Results August 19, Tarphel —Trashi Yangtse Annotated checklist August 20, Trashi Yangtse and Duksum [divided into two Hesperiidae groups, Duksum team (SW, KW, MH, YW) and old Dzong H-1. Choaspes benjaminii japonicus (Murray, 1875) team (the others)] 1♂, 17. viii. 2011 (MS); 1♂, 19. viii. 2011 (MY) August 21, Trashi Yangtse — Bumthang This species was observed near the forest. During the 2. The second survey: autumn of 2011 daytime, one male was resting underside of the leaf. (Participants: Karma Wangdi, Sangay Drukpa and Motoki H-2. ratna tytleri Evans, 1926 Saito) 1♂, 17. viii. 2011 (MS); 1♂, 20. viii. 2011 (SY & TA); September 27, Chazam —Trashi Yangtse 1♀, 14. viii. 2011 (MS) September 28, Trashi Yangtse — Tarphel Sparsely seen in the forest at 1,800-2,300 m. September 29-October 1, Tarphel and adjacent area H-3. Celaenorrhinus leucocera (Kollar, 1844) (Fig. 14) October 2, Tarphel —Trashi Yangtse 1♂, 16. viii. 2011 (MY); 1♀, 19. viii. 2011 (MS); 1♂, October 3, Trashi Yangtse — Bumthang 10. viii. 2011 (MS); 1♀, 19. viii. 2011 (MS); 1♂, 20. 3. The third survey: summer of 2012 viii. 2011 (SY & TA) (Participants: Karma Wangdi, Sangay Drukpa and Motoki Several adults were observed at rocky slope near a Saito) dense forest at 1,800-1,900 m. July 21, Trashi Yangtse — Bumdeling H-4. Pseudocoladenia dan festa (Evans, 1949) (Fig. 15) July 22 ,Bumdeling — Tarphel 1♂, 20. viii. 2011 (MY) July 23-26, Tarphel and the adjacent area This specimen was observed near the old Dzong at July 27, Tarphel —Trashi Yangtse Trashi Yangtse. In the second survey during September and October, several adults were visiting flowers in the afternoon along the trail at 2,200 m. Scientific names of butterflies were, in most instances, de- H-5. Gerosis sinica narada (Moore, 1884) termined by the seventh, eighth and ninth authors. Nomen- 1♀, 10. viii. 2011 (MS) clature chiefly follows Evans (1932), Eliot (1969, 1992), Only one specimen was collected. It seems to be uncom- D’Abrera (1982, 1985, 1986) Tsukada & Nishiyama (1980), mon. Yata & Morishita (1981), Aoki et al. (1982), Tsukada (1985, H-6. Apostictopterus fuliginosus curiosa (Swinhoe, 1991), Osada et al. (1999), Smith (1994, 1995), Ek-Amnu- 1917) NEW Record ay (2006), Kehimkar (2008) and Kimura et al. (2011) for 1♂, 9. viii. 2011 (MS); 1♂, 19. viii. 2011 (MY) specific and subspecific names. Some scientific names follow previous stud- ies by Bingham (1905) and Talbot (1939).

MoAF = Ministry of Agriculture and Forests, UWICE = Ugyen Wangchuck Institute for Conservation and Envi- ronment, RIEB = The Research Insti- tute of Evolutionary Biology, UMUT = The University Museum, The Fig. 2. The Himalayas seen from Trashi Yangtse. The opposite side is (Tibet).

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3 4 Fig. 3. Chazam (1,200 m), the entrance of Trashiyangtse Valley. Fig. 4. Dry vegetation (Chazam-Duksum).

5 6

Fig. 5. A view on the way from Duksum to Trashi Yangtse. The slope along this road is well cultivated and trees are scarce. Fig. 6. The thick deciduous forest near Trashi Yangtse.

7 8

Fig. 7. The bridge at the end of Trashi Yangtse, unpaved road continuing to Bumdeling. Fig. 8. The left bank of Trashiyangtse Valley.

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9 10 Fig. 9. The view of Bumdeling (1,900 m). Fig. 10. Trekking from Bumdeling to Tarphel.

11 12 Fig. 11. Old chorten near Tarphel. Fig. 12. Secondary forest of Quercus griffithii behind the village of Tarphel.

13 Fig. 13. Tarphel (2,230 m), buckwheat flowers are in bloom at the end of the rainy season (October, 2011) .

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14 15

Fig. 14. Celaenorrhinus leucocera resting on the underside of a leaf. Fig. 15. Pseudocoladenia dan resting on the upperside of a fern frond.

16 17

Fig. 16. Aeromachus stigmatus mud-puddling. Fig. 17. Solvia lucasii mud-puddling.

20

18 19 Fig. 18. Final inster larva of Troides aeacus Fig. 19. Byasa polyeuctes emerging in the rain. found on griffithii (Pa-2). Fig. 20. Byasa polyeuctes visiting a flower cluster of cylindricum.

21 Fig. 21. Meandrusa lachinus ♀, resting on the upperside of a fern frond.

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22

Fig. 22. Bhutanitis ludlowi ♂ visiting a flower cluster of Viburnum cylindricum. Fig. 23. Bhutanitis ludlowi ♀ resting on flowers.

23

26 Fig. 26. Pieris erutae ♀ visiting a flower cluster of buckwheat.

24 Fig. 24 Delias sanaca mud-puddling.

27 28

25 Fig. 27. Foodplant of Pieris extensa (Brassicaceae). Fig. 25. Aporia harrietae resting on the ground (Pi-14). Fig. 28. Final instar larva of Pieris extensa.

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This species has been known from Naga Hills, northern Papilionidae and China. New to Bhutan and this should Pa-1. Bhutanitis ludlowi Gabriel, 1942 (Figs 22, 23) be the westernmost record of its distribution. The adult 2♂, 13. viii. 2011 (SW & MY); 1♂, 16. viii. 2011 (KW butterflies flies very swiftly near the bush. A few adults & MY), 1♀, 13. viii. 2011 (KW), 1♀, 16. viii. 2011 (SW were observed in the forest at 1,800-1,900 m. & MY) H-7. Aeromachus stigmatus stigmatus (Moore, 1878) This magnificent species was observed only at small (Fig. 16) area around Tarphel at 2,300-2,500 m. Males seem to 1♂, 10. viii. 2011 (MS); 1♂, 11. viii. 2011 (MY); 1♂, appear from the beginning of August and females were 20. viii. 2011 (SY & TA) observed from mid-August. The details of its biology Rare. One male was observed mudpuddling on the trail. and ecology were described by Harada et al. (2011). H-8. Solvia lucasii separata (Moore, 1882) (Fig. 17) Pa-2. Troides aeacus aeacus (C. & R. Felder, 1860) (Fig. 18) 1♂, 14. viii. 2011 (MH); 1♂, 19. viii. 2011 (MY); 1♂, 9. 4 eggs, 5 larvae, 13-18. viii. 2011 (MH & MY) viii. 2011 (MS); 1♂, 10. viii. 2011 (MY); 1♂, 14. viii. It seems to be out of season for the adult butterfly. A 2011 (MS); 1♂, 9. viii. 2011 (SY & TA) few adults were observed in Trashi Yangtse, Bumdeling Sparsely seen in the forest at 1,700-1,900 m. Males fre- and Tarphel. The final instar larvae were found on the quently come to water. leaves of Aristolochia griffithii at Tarphel. H-9. Pedesta masuriensis masuriensis (Moore, 1878) Pa-3. Byasa polyeuctes letincius (Fruhstorfer, 1908) (Figs 1♂, 20. viii. 2011 (SY & TA); 1♂, 19. viii. 2011 (SY & 19, 20) TA); 1♂, 20. viii. 2011 (MY) 1♂, 10. viii. 2011 (MY); 1♂, 17. viii. 2011 (SY & TA); Sparsely seen at 1,800-1,900 m near the old Dzong at 1♂, 15. viii. 2011 (SY & TA); 1♂, 19. viii. 2011 (SY & Trashi Yangtse. TA); 1♀, 15. viii. 2011 (SY & TA) H-10. Pedesta pandita (de Nicéville, 1885) This species occurs chiefly from 1,500 m up to 2,300 m at 1♂, 14. viii. 2011 (MS); 1♂, 14. viii. 2011 (MH); 1♂, the forest and near the village where the hostplant (Aris- 10. viii. 2011 (SY & TA); 1♂, 14. viii. 2011 (MY) tolochia griffthii) grows. In Tarphel it flies together with Sparsely seen along the trail at 1,800-2,300 m. Males Bhutanitis ludlowi. Some eggs and larvae were also ob- come to damp patches. served. Worn adult butterflies were observed until October. H-11. Halpe kumara de Nicéville, 1885 Pa-4. Meandrusa lachinus lachinus (Fruhstorfer, 1902) 1♂, 13. viii. 2011 (MY); 1♂, 17. viii. 2011 (MS); 1♂, (Fig. 21) 19. viii. 2011 (MS) 1♂, 14. viii. 2011 (SY & TA) Only a few adults were observed in the forest at 2,200- One male was collected at the small cleared summit 2,300 m. Males come to damp patches. near Tarphel at about 2,500 m. Karma took a photo of a H-12. Notocrypta feisthamelii alysos (Moore, 1866) female at Tarphel. It seems rare. 1♂, 11. viii. 2011 (YI); 1♂, 19. viii. 2011 (MY); 1♂, Pa-5. Graphium cloanthus cloanthus (Westwood, 1841) 19. viii. 2011 (MH); 1♂, 19. viii. 2011 (MY); 1♂, 20. 1♂, 20. viii. 2011 (MS); 1♂, 20. viii. 2011 (SY & TA); viii. 2011 (MS); 1♂, 10. viii. 2011 (SY & TA) 1♂, 20. viii. 2011 (MS); 1♂, 20. viii. 2011 (MY); 1♂, 9. Frequently seen in the shady forest near the old Dzong viii. 2011 (SY & TA) of Trashi Yangtse at 1,800-1,900 m. Males come to damp patches. H-13. Potanthus ganda ganda (Fruhstorfer, 1911) Pa-6. Papilio helenus helenus Linnaeus, 1758 1♂, 10. viii. 2011 (SY & TA) 1♂, 20. viii. 2011 (SY & TA); 1♂, 20. viii. 2011 (YI); H-14. Parnara bada bada (Moore, 1878) 1♂, 17. viii. 2011 (MS); 1♂, 17. viii. 2011 (SY & TA) 1♂, 10. viii. 2011 (SY & TA); 1♀, 12. viii. 2011 (SY & TA) Common from low altitude up to 2,300 m. H-15. Pelopidas sinensis (Mabille, 1877) Pa-7. Papilio alcmenor alcmenor C. & R. Felder, 1865 1♂, 9. viii. 2011 (SY & TA) 2♂, 20. viii. 2011 (MS); 1♂, 20. viii. 2011 (MY); 1♂, H-16. Polytremis eltola eltola (Hewitson, 1869) 20. viii. 2011 (SY & TA) 1♂, 10. viii. 2011 (MY); 1♂, 19. viii. 2011 (MS); 1♂, Sparsely seen near old Dzong at Trashi Yangtse. Males 20. viii. 2011 (MS); 1♂, 19. viii. 2011 (MY); 1♂, 20. were observed coming to puddles. viii. 2011 (SY & TA); 1♂, 19. viii. 2011 (SY & TA) Pa-8. Papilio bianor triumphator Fruhstorfer, 1902

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1♂, 14. viii. 2011 (MY); 1♂, 20. viii. 2011 (SY & TA); specimens obtained in 1933 and 1934 from this local- 1♂ 14.viii. 2011 (MS); 1♂, 20. viii. 2011 (MH); 1♂, ity (Talbot, 1939). Since then no additional record has 11. viii. 2011 (YI) been found. As in Bhutanitis ludlowi, this subspecies Males were sparsely seen from 1,700-2,300 m. Males was also re-discovered after a long absence. It was were often observed on mudpuddling. seen only at narrow riversides along small streams in Pa-9. Papilio arcturus arcturus Westwood, 1842 primary forest above 2,300m, and never observed in 1♂, 11. viii. 2011 (MH); 1♂, 10. viii. 2011 (MS) the village and fields. Some eggs and larvae were found This species is rarely seen around Bumdeling. from a wild brassicaceous plant by Yago and Harada. Pa-10. Papilio paris paris Linnaeus, 1785 Pi-7. Cepora nerissa phryne (Fabricius, 1775) 2♂, 20. viii. 2011 (MH); 1♂, 9. viii. 2011 (SY & TA) 2♂, 20. viii. 2011 (YW); 1♀, 20. viii. 2011 (MH) This species prefers the lowland tropical environment. Pi-8. Ixias pyrene familiaris Butler, 1874 Trashi Yangtse (1,700 m) seems to be too high for this 1♂, 20. viii. 2011 (MH); 2♂, 20. viii. 2011 (YW) species. Many adult butterflies were observed at Duk- Sparsely observed below 1,700 m. sum (1,350 m) and nearby areas. Pi-9. Colias fieldii fieldii Ménétriès, 1855 Pieridae 1♀, 17. viii. 2011 (MY); 1♂, 19. viii. 2011 (SY & TA); Pi-1. Eurema hecabe hecabe (Linnaeus, 1758) 1♀, 9. viii. 2011 (SY & TA) 1♂ 17. viii. 2011 (MS); 1♂, 19. viii. 2011 (MY); 1♀, Sparsely found near the field and grassland above 1,700 m. 17. viii. 2011 (MY); 1♀, 13. viii. 2011 (YW) ;1♂, 14. Pi-10. Delias sanaca bhutya Talbot, 1937 (Fig. 24) viii. 2011 (SY & TA); 1♀, 9. viii. 2011 (SY & TA) 1♂, 9. viii. 2011 (SY & TA); 1♂, 3. x. 2011 (MS) Thanks to Dr. Kato’s help, we confirmed that these This species was rare in August and only a few adult specimens were assigned to this species under UV. butterflies were observed. At the beginning of Oc- Pi-2. Eurema blanda silhetana (Wallace, 1867) tober, several newly emerged adults were observed 1♀, 13. viii. 2011 (YW) from Tarphel (2,230 m) down to the entrance of Trashi Pi-3. Pieris brassicae nepalensis Doubleday, 1846 Yangtse (ca. 1,600 m). Males come to puddle of water. 1♂, 12. viii. 2011 (MY); 1♂, 12. viii. 2011 (SY & TA); Pi-11. Pareronia avatar (Moore, 1858) 1♂, 15. viii. 2011 (MH); 1♂, 17. viii. 2011 (MY); 1♀, 1♂, 20. viii. 2011 (YW) 13. viii. 2011 (YW) Pi-12. Catopsilia pyranthe pyranthe (Linnaeus, 1758) Sparsely seen near the field in Tarphel village. 1♀, 20. viii. 2011 (YW) Pi-4. Pieris canidia indica Evans, 1926 Pi-13. Catopsilia pomona pomona (Fabricius, 1775) 1♂, 12. viii. 2011 (SY & TA); 1♂, 12. viii. 2011 (YW); 1♀, 20. viii. 2011 (MY) 1♂, 15. viii. 2011 (MY); 1♀, 17. viii. 2011 (SY & TA); Pi-14. Aporia harrietae harrietae (de Nicéville, 1892) 1♂, 13. viii. 2011 (MH); 1♀, 17. viii. 2011 (MY) (Fig. 25) Pi-5. Pieris erutae montana Verity, 1908 (Fig. 26) 1♀, 24. vii. 2012 (MH) 1♂, 12. viii. 2011 (MS); 1♂, 13. viii. 2011 (YW); 1♂, This species was originally described from Bhutan. 15. viii. 2011 (SY & TA); 1♀, 15. viii. 2011 (MH); 1♂, According to the original description, the exact loca- 16. viii. 2011 (MY); 1♀, 16. viii. 2011 (MY); 1♂, 10. tion is unknown (de Nicéville, 1892). Yazaki (2012) viii. 2011 (MH); 1♂, 12. viii. 2011 (SY & TA); 1♀, 13. recently described “Aporia kakko” based on individuals viii. 2011 (YW); 1♂, 17. viii. 2011 (SY & TA); 1♂, 12. observed in western Bhutan (Chele la, west of Paro). viii. 2011 (MH); 1♀, 15. viii. 2011 (SY & TA). Judging from the pictures in his description, this spe- This species was abundant near Tarphel villages and ob- cies is identified as A. harrietae. Moreover, the specific served at the same environment as the above two species. taxon, kakko, is invalid because the type specimen was Pi-6. Pieris extensa bhutya Talbot, 1939 (Figs 27, 28) not designated. In our survey, one worn female was 2♂1♀, 15. viii. 2011 (YW); 1♂, 12. viii. 2011 (MH); found near Tarphel. Karma Wangdi, one of the authors, 1♀, 14. viii. 2011 (MY); 1♂, 13. viii. 2011 (SY & TA); also observed this species at Tango Gompa located in 1♀, 14. viii. 2011 (YW) northern Thimphu in July, 2011. The facts suggest that This species is known from Bhutan, N. Myanmar and this species is widely distributed in Bhutan. China. The subspecies was originally described by the (To be continued in the next part)

24 (Teinopalpus) No. 62（2012）

UP UN UP UN H-1. Choaspes benjaminii japonicus ♂. H-2. Celaenorrhinus ratna tytleri ♂.

UP UN UP UN H-3. Celaenorrhinus leucocera ♂. H-4. Pseudocoladenia dan festa ♂.

UP UN UP UN H-5. Gerosis sinica narada ♂. H-6. Apostictopterus fuliginosus curiosa ♂.

UP UN UP UN H-7. Aeromachus stigmatus stigmatus ♂. H-8. Solvia lucasii separata ♂.

UP UN UP UN H-9. Pedesta masuriensis masuriensis ♂. H-10. Pedesta pandita ♂.

25 (Teinopalpus) No. 62（2012）

UP UN UP UN H-11. Halpe kumara ♂. H-12. Notocrypta feisthamelii alysos ♂.

UP UN UP UN H-13. Potanthus ganda ganda ♂. H-16. Parnara bada bada ♂.

UP UN UP UN H-15. Pelopidas sinensis ♂. H-14. Polytremis eltola eltola ♂.

UP UN UP Pa-1. Bhutanitis ludlowi. Left: ♀ UP (preserved in MoAF, Bhutan). Middle; ditto, UN. Right: ♂ UP (preserved in UMUT, Japan).

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UP UN UP UN Pa-3. Byasa polyeuctes letincius ♂. Pa-4. Meandrusa lachinus lachinus ♂.

UP UN UP UN Pa-5. Graphium cloanthus cloanthus ♂. Pa-6. Papilio helenus helenus ♂.

UP UN UP UN Pa-7. Papilio alcmenor alcmenor ♂. Pa-8. Papilio bianor triumphator ♂.

UP UN UP UN Pa-9. Papilio arcturus arcturus ♂. Pa-10. Papilio paris paris ♂.

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UP UN UP UN Pi-1. Eurema hecabe hecabe ♂. Pi-2. Eurema blanda silhetana ♂.

UP UN UP UN Pi-3. Pieris brassicae nepalensis ♂. Pi-3. Pieris brassicae nepalensis ♀.

UP UN UP UN Pi-5 Pieris erutae montana ♂. Pi-5. Pieris erutae montana ♀.

UP UN UP UN Pi-6. Pieris extensa bhutya ♂. Pi-6. Pieris extensa bhutya ♂.

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UP UN UP UN Pi-4. Pieris canidia indica ♂. Pi-7. Cepora nerissa phryne ♂.

UP UN UP UN Pi-8. Ixias pyrene familiaris ♂. Pi-9. Colias fieldii fieldii ♀.

UP UN UP UN Pi-10. Delias sanaca bhutya ♂. Pi-11. Pareronia avatar ♂.

UP UN UP UN Pi-12. Catopsilia pyranthe pyranthe ♀. Pi-13. Catopsilia pomona pomona ♀.

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