were no major biogeographic differences in the types of Diptera that were used in 3 particular regions, though some subtle differences were apparent. Likewise there were no differences between the two major clades of Ceropegia, but clear differences when comparing the range of Diptera exploited by Ceropegia with that of the stapeliads. This clade, one of the largest in the Asclepiadoideae, is a fascinating example of a species radiation driven by an apparently relatively uniform set of pollinators.
Th e fl ower fl y genus Eosphaerophoria is revised. Eight new species are described (adornata sp. n. Mengual, bifi da sp. n. Mengual, brunettii sp. n. Ghorpadé, hermosa sp. n. Mengual, luteofasciata sp. n. Mengual, nigrovittata sp. n. Mengual, symmetrica sp. n. Mengual, and vietnamensis sp. n. Mengual), and an identifi cation key is provided. Redescriptions, illustrations, synonymies, diagnoses and distributional data are given for all 11 known species of Eosphaerophoria. Th e new described species increase the genus' distribution, now recorded from Nepal and Sri Lanka east to New Guinea. All information data, images and drawings, as well as additional images and relevant information, are available online via the internet as an example of the utility of international standards for biodiversity informatics.
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