Baccha tripartita Walker, 1861: 285 Schiner 1868: 344 Bigot 1892: 166 Wulp 1896: 121 Kertész 1910: 157 Baccha flavipes Doesburg, 1959: 233 Baccha sulica Austen, 1893: 144 Wulp 1896: 121 Kertész 1910: 157 Baccha ( Allobaccha ) sulica Knutson et al. 1975: 323 Baccha ( Allobaccha ) tripartita Knutson et al. 1975: 323 Baccha papuana Hull Greve and Ismay 1983: 74 Episyrphus ( Asiobaccha ) sulica Thompson and Vockeroth 1989: 443 Thompson and Vockeroth 1989: 443 Thompson and Vockeroth 1989: 441 Allobaccha papuana Rojo et al. 2003: 20 A taxonomic revision of the genus Asiobaccha Violovitsh (Diptera: Syrphidae) Mengual, Ximo Journal of Natural History 2016 2016-07-31 50 2585 2645 8B4JK (Walker, 1861) Walker 1861 [368,805,424,450] Insecta Syrphidae Asiobaccha GBIF Animalia Diptera 47 2632 Arthropoda species tripartita comb. nov.  ( Figures 11c, d, f, 14d)      Baccha tripartita Walker, 1861: 285. Holotype: ♂, BMNH. Type locality: Indonesia: Misool Island.  Schiner 1868: 344;  Bigot 1892: 166;  Wulp 1896: 121;  Kertész 1910: 157.     Baccha flavipes Doesburg, 1959: 233. Syn. nov.     Baccha sulica Austen, 1893: 144(in part). Syn. nov.  Wulp 1896: 121;  Kertész 1910: 157.    Baccha( Allobaccha) sulicaof  Knutson et al. 1975: 323(in part).    Baccha( Allobaccha) tripartitaof  Knutson et al. 1975: 323.    Baccha papuanaHull, unpublished of  Greve and Ismay 1983: 74.    Episyrphus( Asiobaccha) sulicaof  Thompson and Vockeroth 1989: 443(in part).     Episyrphus( Asiobaccha) tripartitaof  Thompson and Vockeroth 1989: 443.    Allobaccha flavipesof  Thompson and Vockeroth 1989: 441.     Allobaccha papuana(Hull, unpublished name) of  Rojo et al. 2003: 20.    Differential diagnosis This species has a yellow face ( Figure 11f), the alula is bare, narrower than costal cell, the wing is partly bare basally ( Figure 14d), and it does not have a mesonotal fringe. The abdominal pattern is identical to that of two other species,  A. bicolorand  A. loriae, with tergum 4 entirely black ( Figure 11c, d), but differs by the wing microtrichia as stated in the key.  Asiobaccha bicolorand  A. tripartitadiffer from  A. loriaeby having the wing bare basally, easy to distinguish because both always have the cell CuP and anal lobe partly bare basally ( Figure 14c, d); sometimes  A. loriaespecimens may have very small bare areas in the cell BM but the cell CuP and the anal lobe are always microtrichose. On the other hand,  A. tripartitahas a more extensive microtrichia and bare basal areas of the wing are on basal 1/3 –1/2 cell BM only ( Figure 14d), while  A. bicolorhas the cell R bare on basal 1/3 –1/2 and the cell BM bare on basal 1/2 or more ( Figure 14c).   Variation.Wing microtrichia is a bit less variable in this species: the bare area of cell BM varies between basal 1/3 to basal 1/2. Furthermore, a few specimens have costal cell bare very basally. The specimen from New Irelandhas the scutum entirely yelloworange. Wing colouration varies from very dark to almost hyaline.  Length (N = 4).Body, 11.0 –13.0 (12.3) mm; wing, 10.0 –12.0 (11.1) mm.    Biology  Greve and Ismay (1983)mentioned one species of  Bacchawith the following information: ‘Ex  Tiracola(Lep., Noctuidae) larva, Brevaturu, N.P., August, 1971 ’. The species mentioned is  Baccha? [sic] papuanaHull. Thisrecord is compiled by Rojo et al. (2003)but with a different name,  Allobaccha papuana(Hull, unpublished name).  In the opinion of this author, this species might refer to the unpublished name of  Baccha papuanaHullthat appears in two specimens from Mafulu kept at the BMNH and CNC, although there is no information in the original labels about  Tiracola. After studying the work of Greve and Ismay (1983), this citation may refer to a larva of a syrphid species parasiting a larva of  TiracolaMoore, 1881( Lepidoptera: Noctuidae) from Barevaturu N.P. in Papua New Guinea. However, there is no species of  Asiobacchaor  Bacchathat parasitises butterfly larvae. Consequently, this record by Greve and Ismay (1983)may not refer to a species of  Baccha, Allobacchaor  Asiobaccha, or, on the other hand, it might indicate that the larva of  Bacchawas preying on the  Tiracolalarva and the adult emerged from a puparium.    Geographical distribution Kai Islands, Misool Island, New Guinea Island, New Ireland Islandand Woodlark Island.     Typelocality   Indonesia: West Papua Province, Raja Ampat Regency, Misool Island(Mysol), between 01°40 ’and 02°04 ’S, and between 129°43 ’and 130°26 ’E.   Material examined  Type material.   Holotype, male, deposited in The Natural History Museum, formerly British Museum (Natural History) (London, United Kingdom) and labelled: ‘W’[round, handwritten] ‘Mysol. // Wallace. ’ ‘ Baccha//  tripartita// Wlk. ’[on the reverse of previous label, handwritten] ‘tripartita’[handwritten] ‘HOLOTYPE //  Asiobaccha//  tripartita// (Walker) // det. X. Mengual20 14’[red]. Type material of    Baccha sulica  Austen, 1893 .  Syntype, female, deposited in The Natural History Museum (London, UK) and labelled: ‘SYN- // TYPE ’[round, blue margin] ‘ Mysol ’[round, light blue] ‘hl // 124 ’[on the reverse of previous label, handwritten] ‘ Mysol. // ( Wallace.) // 61.124. ’ ‘  Baccha//  sulica//  Aust. ’[on the reverse of previous label, handwritten]. Type material of    Baccha flavipes  Doesburg, 1959 .  Holotype, female, deposited in the Naturalis Biodiversity Center (Leiden, The Netherlands) and labelled: ‘HOLOTYPE ’[yellow] ‘ G.den Hoed// Ifar12-57’[handwritten] ‘ Museum Leiden// Collectie// Van Doesburg// rec. 1973 ’ ‘  Baccha ♀//  flavipes Dobg.// det. v. Doesburg ’.  Nontype material.  INDONESIA: Maluku Prov., Great Kai Island, Mountain Daab,  April 1922, T. Mortensen [ 2♀, ZMUC];  Papua Prov.,  11 kmSE of Oerberfaren, Bodem,  100 m,  7 –17 July 1959, T.C. Maa [ ♀, BPBM];...,  Wataikwa River,  August 1910, A.F.R. Wollaston 1911 –229 [ 1♀, BMNH];...,  Araucaria River, SW von Bernhard Camp,  800 m,  6 January 1939, L.J. Toxopeus [ 1♀, RMNH].  PAPUA NEW GUINEA: Central Prov., Owen Stanley Range, Goilala, Loloipa,  1 –15 February 1958, W.W. Brandt [ 1♂ 1♀, BPBM; 1♂, ZFMK, ZFMKDIP 00011948];...,  Goilala, Tapini,  975 m,  16 –25 November 1957, W.W. Brandt [ 1♂, BPBM];  Central Prov., Mafulu, 4000 ft., January 1934, L.E. Cheesman [ 1♀, BMNH; 1♀, CNC];  West Sepik Prov., Telefomin District, Eliptamin Valley,  1200 –1350 m,  19 –30 June 1959, W.W. Brandt [ 1♀, BPBM];  Madang Prov., Finisterre Range, Saidor, Sibog village,  27 May –5 June 1958, W.W. Brandt [ 1♀, BPBM];  Jiwaka Prov., Upper Jimi valley, Tsenga,  1200 m,  15 July 1955, J.L. Gressitt, light trap[ 1♂, BPBM];  Morobe Prov., Bulolo Gorge,  800 m,  17 January 1962, G. Monteith [ 1♂, BPBM];...,   6 milesNW Lae, Rain forest,  15 m,  9 July 1957, D.E. Hardy [ 1♂, ZFMK, ZFMKDIP 00011952];...,  Bulolo, Manki Logging area,  2 June 1983, H. Roberts[ 1♂, BMNH] ( specimenphotographed);...,  Wau,  6 –14 March 1974, H. Hippa, P.T.Lehtinen [ 1♀, MZH];...,  Wau,  April 1968, M. Sedlacek[ 1sp., BPBM];..., Wau, Nakata Range,  4700 ft.,  9 June 1968, J.W. Boyes [ 1♂, CNC];  Milne Bay Prov., Woodlark Island, Kulumadau Hill,  4 –9 March 1957, W.W. Brandt[ 1♂ 1♀, BPBM; 1♀, ZFMK, ZFMKDIP 00011950];...,   16 March 1957,... [ 1♀, ZFMK, ZFMKDIP 00011953];  New Ireland Prov., Danu, Kalili Bay,  3 April 1962, Noona Dan Exp.61 –62 [ 1♂, ZMUC];...,   30 April 1962,... [ 1♀, ZMUC].    Remarks  Austen (1893)described  Baccha sulicabased on two female specimens, but only the female from Sula Island had Walker ’s handwriting. Austen (1893)stated that he found the type of this species, but he could not find if it was already described. In my opinion, he decided to describe a new species based on Walker ’s handwriting. The most interesting fact is that Austen (1893)used the same argument to separate  sulicafrom  Baccha moluccanaas to separate  bicolorfrom  moluccana, but he did not compare his two new species. In the BMNH there are the two syntypesof  Baccha sulica, but one belongs to  A. bicolor(specimen from Sula Island and Walker ’s handwriting) and the other syntypebelongs to  A. tripartita(specimen from Misool). Specimens from the New Irelandat ZMUC have a manuscript name given by P.H. van Doesburg,  Baccha pleuralis, never published. Specimens from Mafulu have a manuscript name given by F. M. Hull,  Baccha papuana, again never published. None of these three names is available. As already mentioned,  A. tripartitamight belong to a widespread taxon and might include also  A. loriaeand  A. bicolor(see Remarks under  A. bicolorand  A. loriae). There are specimens of  A. tripartitaand  A. bicolorfrom the same localities, but, more interestingly, specimens of  bicolorand  tripartitafrom New Ireland Islandhave an orange scutum. Both females from Great Kai Island also have the scutum orange. 2846791577 Indonesia -2.0666666 Misool Island 1307 130.43333 Raja Ampat Regency 48 2633 1 Papua Barat holotype 3758306326 The Natural History Museum X. Mengual 48 2633 1 1 holotype 3758306338 United Kingdom Mysol Mysol 48 2633 1 1 syntype 3758306329 G. den Hoed Netherlands Museum Leiden Ifar 48 2633 2 2 holotype 3758306332 1922-04 ZMUC Indonesia Great Kai Island Mountain Daab 48 2633 1 2 3758306317 1959-07-07 1959-07-17 1959-07-07 ZMUC Indonesia 100 Papua Prov 48 2633 1 2 Papua Prov 3758306327 1910-08 BMNH Indonesia Wataikwa River 48 2633 1 1 3758306309 1939-01-06 RMNH Indonesia 800 Araucaria River 48 2633 1 1 3758306328 1958-02-01 1958-02-15 1958-02-01 BPBM, ZFMK Papua New Guinea Loloipa Central Prov Goilala 48 2633 ZFMKDIP 00011948 1 1 2 3758306303 1957-11-16 1957-11-25 1957-11-16 BPBM Papua New Guinea 975 Goilala Tapini 48 2633 1 2 1 3758306303 1957-11-16 1957-11-25 1957-11-16 BPBM Papua New Guinea 975 Goilala Tapini 48 2633 1 2 1 3758306303 1957-11-16 1957-11-25 1957-11-16 BPBM Papua New Guinea 975 49 2634 Goilala Tapini 48 2633 1 2 1 3758306313 1957-11-16 1957-11-25 1957-11-16 BPBM Papua New Guinea Sibog village 975 Goilala Tapini 49 2634 1 2 1 3758306312 1957-11-16 1957-11-25 1957-11-16 BPBM Papua New Guinea Sibog village 975 Goilala Tapini 49 2634 1 2 1 3758306322 1957-11-16 1957-11-25 1957-11-16 BPBM Papua New Guinea Sibog village 975 Goilala Tapini 49 2634 1 2 1 3758306302 1957-07-09 ZFMK Papua New Guinea 15 Rain forest 49 2634 ZFMKDIP 00011952 1 1 2846791534 1983-06-02 BMNH Papua New Guinea Bulolo Manki Logging area 49 2634 1 1 3758306331 [201,873,350,374] 1974-03-06 1974-03-14 1974-03-06 MZH Papua New Guinea Wau 49 2634 1 1 2846791449 1968-04 BPBM Papua New Guinea Wau Sedlacek 49 2634 1 3758306320 1968-06-09 1957-03-09 1957-03-04 CNC Papua New Guinea 1433 Milne Bay Prov Kulumadau Hill 49 2634 1 1 Milne Bay Prov 3758306320 1968-06-09 1957-03-09 1957-03-04 CNC W. W. Brandt Papua New Guinea 1433 Milne Bay Prov Kulumadau Hill 49 2634 ZFMKDIP 00011950 1 2 1 Milne Bay Prov 3758306306 1957-03-16 1962-04-03 1957-03-16 ZFMK, ZMUC Papua New Guinea Danu Kalili Bay 49 2634 ZFMKDIP 00011953 2 1 1 New Ireland Prov 3758306306 1957-03-16 1962-04-03 1957-03-16 ZFMK, ZMUC Papua New Guinea Danu Kalili Bay 49 2634 ZFMKDIP 00011953 2 1 1 New Ireland Prov 3758306318 [430,775,523,548] 1962-04-30 ZMUC Papua New Guinea 49 2634 1 1