Asiobaccha tinctiventris, comb. nov.
Creators: name: Mengual, Ximo
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Syrphidae
Asiobaccha
Asiobaccha tinctiventris

description: Asiobaccha tinctiventris (de Meijere, 1924) comb. nov.   
(Figures 11a, b, e, 12f)  
 Baccha tinctiventris de Meijere, 1924: 21. Holotype: ♀, RMNH. Type locality: Indonesia: Sumatra, Aur Kumanis. Curran 1931a: 322; Curran 1947: 5.   
 Baccha luteolimbata de Meijere, 1924: 22. Syn. nov. Curran 1931a: 322; Curran 1947: 5.   
 Baccha (Allobaccha) luteolimbata of Knutson et al. 1975: 322.   
 Baccha (Allobaccha) tinctiventris of Knutson et al. 1975: 323.   
 Allobaccha luteolimbata of de Jong 2000: 126.   
 Allobaccha tinctiventris of de Jong 2000: 214.    Differential diagnosis   
 Species with the face entirely yellow, densely yellow pollinose, and the frons with a medial dark macula on lunule, and very pollinose laterally and posteriorly (Figures 11e, 12f). The abdomen is very petiolate, with tergum 3 broadening considerably (Figure 11a, b). This species is similar to A. maculosa, but differs in the following characters: the alula is broad, broader than the costal cell; frons and face are densely pale pollinose; the ocellar triangle is shiny; the metatibia is mostly black, yellow only basally; and tergum 3 has yellow markings (a single medial, triangular yellow fascia that is not divided medially).   
 Length (N = 3). Body, 11.5 – 16.0 (14.0) mm; wing, 10.0 – 15.0 (12.5) mm.    Geographical distribution   
Borneo, Malay Peninsula, Sumatra, Java, Vietnam.   Type locality   
Indonesia: Sumatra, Aur Kumanis, unknown coordinates (de Jong 2000).   Material examined   
 Type material. Holotype, female, deposited in the Naturalis Biodiversity Center (Leiden, The Netherlands) and labelled: ‘ Edw. Jacobson // Aur Kumanis // Sum. 3 1914 ’ ‘ Baccha // tinctiventris // det. de Meijere. // Type’ [handwritten except third line, de Meijere] ‘ Baccha // tinctiventris // de Meijere, 1924 // ZMAN type DIPT.1060.1 ’ [red] ‘ HOLOTYPE // Asiobaccha // tinctiventris // det. X. Mengual 20 14’ [red] (specimen photographed).   
  Type material of Baccha luteolimbata de Meijere, 1924 .  Lectotype, male, deposited in the Naturalis Biodiversity Center (Leiden, The Netherlands) and labelled: ‘ Edw. Jacobson // Aur Kumanis // Sum. 3 1914 ’ ‘ Baccha // luteolimbata // det. de Meijere. // Type’ [handwritten except third line, de Meijere] ‘ Baccha // luteolimbata // de Meijere, 1924 // ZMAN type DIPT.1015.1 ’ [red] ‘ LECTOTYPE // Baccha // luteolimbata // de s. X. Mengual 20 14’ [red] (specimen photographed). This specimen is here designated as lectotype to fix and ensure the universal and consistent interpretation of the name. Paralectotype, female, deposited in the Naturalis Biodiversity Center (Leiden, The Netherlands) and labelled: ‘ Edw. Jacobson // Aur Kumanis // Sum. 3 1914 ’ ‘ Baccha // luteolimbata // de Meijere, 1924 // ZMAN type DIPT.1015.2 ’ [red] ‘ PARALECTOTYPE // Baccha // luteolimbata // de s. X. Mengual 20 14’ [yellow]. This specimen is here designated as paralectotype.   
 Nontype material. INDONESIA: south Sumatra, SW Lampong distr. (= Lampung), Mt. Tanggamoes (= Tanggamus), Gisting ult., 600 – 700 m, December 1939, M.A. Lieftinck [1♂, RMNH]; East Borneo, Manjapoe, 18 June 1937 [1♀, BMNH]; Java, Penandjoeng peninsula, 3300 m, July 1936, Cast Preanger [1♀, IRSNB]. MALAYSIA: Sarawak, Kuching, 29 March 1900 [1 sp., AMNH];..., 30 March 1900 [1 sp., AMNH];..., 1 September 1897 [1 ♀, AMNH];..., 21 May 1900 [1 ♀, AMNH]; Penang Island (= Pulo Penang) [1♂, ZMUC]. VIETNAM: Đồng Nai Province, Cát Tiên National Park, ca. 100 m, 9 April – 13 May 2007, Mal Phy Quy and Nguyen Thanh Manh, Malaise trap [1♀, RMNH];..., ca. 100 m, Crocodile trail, 7 October 2005, R. de Vries [1♀, ZFMK, ZFMKDIP 00011945].    Remarks   
 The type material of Baccha luteolimbata was studied and the two specimens were found to belong to Asiobaccha tinctiventris (Meijere).
description: Published as part of Mengual, Ximo, 2016, A taxonomic revision of the genus Asiobaccha Violovitsh (Diptera: Syrphidae), pp. 2585-2645 in Journal of Natural History 50 on pages 2629-2632, DOI: 10.1080/00222933.2016.1206634, http://zenodo.org/record/3994636