Species diversity and number of potential pollinator species on H. officinalis seed crops in various ecotopes farm fields were studied under the influence “Bi-58 new” insecticide treatment without preliminary treatment. The presence 16 insect belonging to four families genus Hymenoptera (Megachilida, Apidae, Halictidae Vespidae ), two Diptera row ( Syrphidae Stratiomyidae ) one family Lepidopte...

Agroecosystems produce profound alterations on the structure and functioning of original environment, mainly due to reduction biodiversity. Flower flies (Diptera: Syrphidae) are potentially useful organisms for diverse ecosystem services they provide. We studied syrphids collected in a Pampean agroecosystem assess richness, abundance, host plants, could offer. were represented by three subfamil...

Phylogenetic relationships of genera Allograpta, Sphaerophoria and Exallandra (Diptera, Syrphidae) were analyzed based on sequence data from the mitochondrial protein-coding gene cytochrome c oxidase subunit I (COI) and the nuclear 28S and 18S ribosomal RNA genes. The three genera are members of the subfamily Syrphinae, where nearly all members feed as larvae on soft-bodied Hemiptera and other ...