What is "allograpta"

'Allograpta ' is a very large and diverse genus of hoverflies present throughout the world except most of the palearctic region. The adults are brightly coloured flower pollinators and most larvae have a predatory feeding mode involving soft-bodied sternorrhynchans. Certain species have diverged from this and their larvae have been found to be leaf-miners, stem-borers or pollen-feeders. Allograpta is currently being studied using both molecular and morphological methods to produce a robust phylogeny of the genus and its related genera. Preliminary studies show the genus to be monophyletic with the genera Sphaerophoria and Exallandra placed within which obviously complicates matters. A more complete review is needed before any major taxonomic changes can occur i.e. splitting the genus up or incorporating related genera.