@book {1479,
	title = {List of the specimens of dipterous insects in the collection of the British Museum},
	series = {List of the specimens of dipterous insects in the collection of the British Museum},
	year = {1849},
	pages = {Part II, [iii]+231-484. [1849.04.21]; Part III: [iii]+485-687. [1849.06.30]; Part IV. Pp. [3] + 689-1172 + [2] [1849.12.08]},
	publisher = {British Museum (Natural History)},
	organization = {British Museum (Natural History)},
	address = {London},
	url = {http://www.biodiversitylibrary.org/bibliography/20821},
	author = {Walker, F.}
}
@article {1157,
	title = {Diagnostic keys to new and known genera and species of Indian subcontinent Syrphini (Diptera: Syrphidae)},
	journal = {Colemania Insect Biosystematics},
	volume = {3},
	year = {1994},
	pages = {1-15},
	keywords = {Agnisyrphus, Agnisyrphus angara Ghorpade, Agnisyrphus gressitti Ghorpade, Allobaccha, Citrogramma, Citrogramma chola Ghorpad{\'e}, Citrogramma flavigenum Wyatt, Citrogramma henryi Ghorpad{\'e}, Syrphini, Vockerothiella, Vockerothiella laticornis (Curran)},
	author = {Ghorpade, Kumar D.}
}
@book {1647,
	title = {Catalogue Synonymique et G{\'e}ographique des Syrphidae (Diptera) de la R{\'e}gion Afrotropicale},
	series = {INSTRUMENTA BIODIVERSITATIS 2},
	year = {1998},
	pages = {187},
	publisher = {Mus{\'e}um d{\textquoteright}histoire naturelle Gen{\`e}ve},
	organization = {Mus{\'e}um d{\textquoteright}histoire naturelle Gen{\`e}ve},
	author = {Dirickx, H. G.}
}
@article {1928,
	title = {First phylogeny of predatory Flower flies (Diptera, Syrphidae, Syrphinae) using mitochondrial COI and nuclear 28S rRNA genes: conflict and congruence with the current tribal classification},
	journal = {Cladistics},
	volume = {24},
	year = {2008},
	pages = {543-562},
	url = {http://entomology.si.edu/StaffPages/Mengual_Ximo/2008_Cladistics.pdf},
	author = {Mengual, Ximo and St{\r a}hls, Gunilla and Rojo, Santos}
}
