Can anthophilous hover flies (Diptera: Syrphidae) discriminate neonicotinoid insecticides in sucrose solution?

determination of the fauna of hover flies (diptera: syrphidae) in roshtkhar city (razavi khorasan province)

abstract the syrphidae family with almost 6000 described species, 15 tribes and 3 subfamilies is one of the largest families of diptera. they known as hoverflies or flowerflies. the larvae of subfamily syrphinae are considered the specialized aphidophagous predators play an important role in the reduction of aphid populations in agroecosystems. almost all the adult syrphids feed on pollen or ne...

Checklist of the flower flies of Ecuador (Diptera, Syrphidae)

Syrphidae is one of the most speciose families of true flies, with more than 6,100 described species and worldwide distribution. They are important for humans acting as crucial pollinators, biological control agents, decomposers, and bioindicators. One third of its diversity is found in the Neotropical Region, but the taxonomic knowledge for this region is incomplete. Thus, taxonomic revisions ...

The phenology and pollen feeding of three hover fly (Diptera: Syrphidae) species in Canterbury, New Zealand

The phenology and sex ratios of three hover fly species on Canterbury farmland, New Zealand were recorded weekly from five yellow watertraps from October 15, 1993 to January 31,1997. Gut fullness, egg number and pollen content were recorded weekly from September 8, 1994 to July 25, 1996. Catches of Melanostoma fasciatum (Macquart) and Melang\ma novaezelandiae (Macquart) were higher during the s...

Neonicotinoid insecticides can serve as inadvertent insect contraceptives

There is clear evidence for sublethal effects of neonicotinoid insecticides on non-target ecosystem service-providing insects. However, their possible impact on male insect reproduction is currently unknown, despite the key role of sex. Here, we show that two neonicotinoids (4.5 ppb thiamethoxam and 1.5 ppb clothianidin) significantly reduce the reproductive capacity of male honeybees (drones),...

Neonicotinoid insecticides and bees