With 552 species group names available (excluding misspellings), the Microdontinae constitute the smallest of the three subfamilies of Syrphidae. Paradoxically, this subfamily is taxonomically the least organized of the three: 388 species names were previously classified in a single genus, Microdon Meigen, 1803. The present paper introduces a new generic classification of the Microdontinae, rel...

New taxonomic and distributional data on the genera Citrogramma Vockeroth, 1969 and Eosphaerophoria Frey, 1946 are presented, including descriptions of the females of Citrogramma asombrosum Mengual, 2012, Citrogramma pennardsi Mengual, 2012 and Eosphaerophoria dentiscutellata (Keiser, 1958). Modifications to published identification keys to accommodate the new information are provided for both ...

Two-year study on the pollination ecology of Eremurus inderiensis reveals that the florescence of eremurus is from the middle ten days of May to the first ten years of June, anthesis of a single flower lasts one day. When the weather is rainy and the highest temperature is less than 20 centigrade, anthesis of a single flower can last two days. Pollen dispersal period of single flower can last f...