| a review of the early stages and host plants of the genera eumerus and merodon (diptera: syrphidae), with new data on four species. | the genera eumerus and merodon (diptera: syrphidae) have a high taxonomic diversity (300+ species altogether), but life histories of most species are unknown. in addition, these hoverfly genera are recognised to be pests (ornamental plants and vegetable crops). in this paper, early stages of four hoverfly species are described, eumerus hungaricus szilády, 1940, eumerus nudus loew, 1848 and merodon geniculatus strobl, 1909, from spain, and eumerus strigatus walker, 1859, from california, usa. lar ... | 2017 | 29261787 |