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The LepidopterologicalSocietyLepidopterological Society of Japan axtma Ttares. Iopid. Soc. 1mpan 47 (4):223-236, December 1996 Records of the Boarmiini (Geometridae ; Ennominae) from Thailand III" Rikio SATo 2-27-29,Shindori-nishi, 950-21 Niigata, Japan Abstract 35 species of the Boarmiini are recorded from Thailand, with descriptions of one new genus and four new species: 71elletrnrona gen. nov., IYIzndranies xanthos, Abaciscus ka7sholti. Ilrrect7QPis siamensis, I'lalletrarona amnicosla spp. nov. Key words Geometridae, Ennominae, Boarmiini, new genus and species, Thailand. This paper is the third report on the Boarmiini from Thailand mainly based on the collections of the Lepidopterological Expeditions of the Uniyersity of Osaka Prefecture (now Osaka Prefecture University) to Thailand in 1981, 1983, 1985 and 1987, and the Overseas Scientific Research Project of the National Science Museum in 1987, In my (Sato, 1991, 1995), 76 species to the tribe Boarmiini, which preceding papers'by belonging was defined Holloway (1993), have already been recorded from Thailand. The detailed accounts of the Lepidopterological Expeditions of the Osaka Prefecture Univer- sity to Thailand were given by Kuroko & Moriuti (1987) and Moriuti (1989). In this paper 35 species of the following genera will be newly recorded, with descriptions of one new genus and four new species : Alcis Curtis, Biston Leach, Ascotds Httbner, Cusiala Moore, Xdndrtzmes Moore, Bgopharoctenucha Warren, Erebomorpha Walker, QPhthalnzitis Fletcher, Amblychia Guenee, Xbrodes Guenee, Abacisctts Butler, 1lrxnkowskia OberthUr, threctmpis Sato, Myn'oblaPham Warren, Calichodes Warren, Chrysoblophtzra Holloway, AJtiqyopa Walker, Prochasma Warren, Ruttellerona Swinhoe and 7'belletritrona gen. nov, Abbreviations. Collectors. K: Hiroshi Kuroko. M: SigeTu Moriuti. S: Tosihisa Saito, A: Yutaka Arita. Y: Yutaka Yoshiyasu. The location of the specimens. BMNH: The Natural History Museum, formerly British Museum (Natural History), London. NSMT: National $cience Museum, Tokyo. OPU: EntomQlogical Labora- tery, Osakq Prefecture University (formerly Univers,ity of Osaka Prefecture), Sakai, Japan. ZFMK : Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. ZMC : Zoological Museum, Copenhagen, Denmark. RS : R. Sato collection, Niigata. Atcis pammicra (Prout) Cleova Pammiciu Prout, 1925, Alovit, 2ool. 32 : 57. Alcis Pammiera : Holloway, 1993: 239. Chiang Mai, Doi Suthep 1,325m, Meo Village View Point, 1 cl, 22, xi-4, xii. 1989 (Schnitzler), ZFMK, Biston lucutentus Inoue Biston luculentus Inoue, 1992, Bull. Otsuma LVbnt. Uhiv.. Nbme Econ. 28 : 171, figs 59, 60. ' This study was supported by the Grants-in-aid No. 06041116 for Field Research of the Monbu$ho International Scientific Rese'arch Program, and Nos 56041051,57043046,58041061,59043055, 60041062, 61043057, 62041087 and 63043062 for Overseas Scientific Research from the Ministry of Education, Science and Culture, Japan. NII-Electronic Library Service The LepidopterologicalSocietyLepidopterological Society of Japan 224 Rikio SATo 'S.s・・gt ct . {;..SES,. ・Y.IJ/' 2 k,',/' ,'L'j,・.Lt・,,・,.・・, ・. ,・ ,,'・,'1iti ",'l}t・ssulla.tee・v8X・i,;11I,i, . Figs1-9. Boarmiine species from Thailand. 1. BistonPanterinan'a evanthemala (Meore). 2. Amblychia Pvaeblmbrain (Warren). 3. Xandiumes xanthos sp. nov. Holotype. 4. Ditto, underside. 5. 1'biletrblrona amnicosta sp. nov. Paratype. 6. Abacisctts lear- sholti sp. nov. Holotype. 7. Ptirectropis eutJql'stmphion (XVehrli). Lectotype. 8, Ditto, labels. 9. FZirectmpis siamensis sp. nov. Holotype. Chiang Mai, Doi Pui 1,300 m, 1 di, 30. v. 1983 (K.M.A.Y.), 1 [ii, 1-4. ix. 1987 (M,S,A.Y.) ; Fang 450 m, 1 [J, 14. v. 1983 (K,MAY.). Chanthaburi, Khao Soi Dao 400m, 6 ciny, 6. vi, 1983 (K.M,A.Y.), 14 di 1 4, 24-25. viii. 1987 (M.S.A.Y.) ; Tam Taru Lod, 2 [in, 21. viii. 1981 (K.M.A.Y.) ; Phliu, 1 cl, 5, vi, 1983 (K.M,AYJ, Nakhon Nayok, Khao Yai 800 m, 1cin, 15. vi. 1983 (K.M.A.Y.),1[{i, 22. ix, 1987 (M.S.A.Y.). Chum Phon, Lungsuan,1ci', 3, viii. 1981 (K.M.A.Y.). NII-Electronic Library Service The LepidopterologicalSocietyLepidopterological Society of Japan Boarmiini of Thailand III 22S Biston bengaliaria (Guenee) Amphidosis bengalian'a Guenee, 1857, in Boisduval & Guenee, Hist. nat. insectes (Lepid.) 9 : 210. Biston bengalian'a : Hampson, 1895, Fkeuna Br. india (Moths) 3 : 247. m, [ii v. Chiang Mai, Doi Pui 1,300 1 , 30. 1983(K.M,A,Y.),6 0, 1-4. ix.1987 (M.S.A.Y.); Maetaeng, 1 cr, 7, x. 1988 (native collector). Nakhon Nayok, Khao Yai 800 m, 2 cl, 15. vi, 1983 (K.M.A.Y.), 37sl\, 7-10. viiL 1987 (MS.A.Y.), 5di,22-23. ix. 1987 (M.S.A.Y.). Chiang Rai, Wiang Pa Pao, 1 di', 4, x. 1988 (native collector) ; Chen Dao, 1 \, 29. iv. 1987 (S. & A. Saito). Biston regatis Moore Biston ngalis Moore, 1888, i" Hewitson & Moore, Desex nen' indian lopid. insects Colln late Mr Athinson: 234. Nakhon Nayok, Khao Yai 800 m, 2 cl ' 23.ix.1987 (M.S.A.Y.). Biston panterinaria exanthemata (Moore), comb. nov. (Fig. 1) Amphidasis Panterinare'a Bremer & Grey, [1852], in Motschulsky, Etudes ent. 1 : 67. Culcula evanthemata Moore, 1888, in Hewitsen & Moore, Descr. nezv india" lepid. Jitsects Colln late A4r Athinson: 266; Prout, 1915, in Seitz, Gross-Schmett. Erde 4: 3e7, pl.14, row f. Percnia auznthemata : Hampson, 1895, Plauna Bx kidia (Moths) 3i 308. Culcula Panten'nan'a exanthemata : Prout, 1930, Nbvit. gool. 35 : 313. Chaiyaphum, Chulabhorn Dam 700 m, 4 cii , 14, viii, 1987 (M.S.A.Y.). I]kenterinaria is the type species of the genus Cuicula Moore, 1888, and any other species has not previously been placed in the genus. Cuicula has long been considered to be related to Percnia Guenee, 1857, most probably because of the superficial similarities, especially white wings marked with rows of black spots. Hampson (1895) treated "Section Cuicula as one of the subgroups of Percnia, II-A-b", by the absence of fovea in males. Prout (1915) also placed Czaicula next to Plarcnia, and mentioned the former differs from the latter chiefly in the absence of fovea. My close examination of Panten'nan'a including the genitalia of both sexes and mature larvae indicates Culcula is not related to Rercnia but very close to Biston Leach, [1815], The mature larva of Panterinaria in Japan was illustrated by Sato (1987 : 80, pi. 32 : 7-8) with a brief descrip- tion, referred to the similarity to Biston in appearance. Inoue (1985) established the concept of Biston by examining Palaearactic Biston (s. str.) and Oriental Bueuva Walker, [1863], namely he sank Buzum as a junior synonym of Biston, and raised Amvaica Moore, 1888, one of the sections (subgenera) of Buxura (Prout, 1915), to the generic level by the remarkable differences in the male antenna and genitalia. Holloway (1993) accepted his broader concept of Biston. I also support Inoue's treatrnent. The follow- ing characters of Panterinan'a quite agree with those of Biston. Male. Forewing elongate, triangular, outer margin weakly curved;tongue short;no fovea, Male genitalia. Uncus with bifurcate apex ; gnathos broadly enlarged and rounded medially ; valva simple, without raised group of spines, but with rounded strong cucullus ; vesica with elongate band of short setae. Female genitalia. Ovipositor and apodemes elon- gate, extensible, Mature larva. Body stout; cuticle covered with convex granules; head with a pair of blunt corneous processes on vertex. Slight differe4ces from typical species of Biston can be found in the male moth and mature larva of Panterinan'a. Male. Antenna not bipectinate but serrate with fascicles of cilia ; a row of long spines present between 8th and 9th abdominal segrnents dorsally. Male genitalia : juxta not so elon- NII-Electronic Library Service The LepidopterologicalSocietyLepidopterological Society of Japan 226 Rikio SATo gate. Mature larva: subventra] filaments between anal and ventral prolegs not devel- oped, But I exarnined two species of Biston which share the above discriminating characters in male. One is Amphidasys thibetsn'a Oberthttr, 1886, from Tibet, which has been assigned to Bu2ura since Prout (1915). The other is BlePharoctenia Perclava Warren, 1899, from Taiwan, which has been treated as a member of Biston since Prout (1914). TZzibetan-a, PeiTlava and Panten'nan'a are closely related to one another. As for the larval characters, Biston sumpressan'a (Guen6e), the type species of Buzure, was described in detail by Singh (1953). Most characters are identical with those of Btston spp. (robusim& 7agalis and beimlaria examined), except lack of subventral filaments between anal and ventral prolegs, It indicates that subventral fiIaments are not so important to define the genus Bislon. On the above-mentioned basis, I have reached the conclusion that Panten'narin should be transferred to Biston from Culcttla (comb. noy.) and accordingly Culcuin is regarded as a junior synonym of Biston (syn. nov.). Elranthenzain from Darjeeling, India, has greyish markings less developed on both wings, showing much paler appearance than in Panterinaria from Beijing, China. Thai speci- mens are almost identical with those from India in pale wings with weak markings. There are some geographical variations in the specimens secured from India, Nepal, Sikkim, Vietnam and Thailand. Those variations are found not only in appearance but in the male genitalia, especially the shape of uncus, gnathos and cucullus (Figs 10-14). Besides the nominate subspecies and exanthemain, the following subspecies have so far been segregated in China and Japan. Biston panterinaria abraxata (Leech), comb. noy. (Kiukiang, China) Buaanu abnzxata Leech, 1889, 7hans. ent. Soc. Lond. 1889: 143, pl.9: 14. Biston panterinaria sxechuanensis (Wehrli), comb. noy. (Tien-Tsuen, China) Culcula Panlen'nan'a szechuanensis Wehrli, 1939, in Seitz, Gross-Schmett. Erde 4 (Suppl.) : 266, pl. 20, row b. Biston panterinaria liempingensis (Wehrli), comb. nov. (Lienping, China) Cntculd Panterinan'a liempingensis "iehrli, 1939, in Seitz, Gross-Schmett. Ente 4 (Suppl.) : 266, pl. 2e, row b. Biston panterinaria sychnospilas (Prout), comb. nov. (Sado, Japan) Culcula Panterina}ia sychnospilas Prout, 1930, Mvit, zool.