hymenopteran and hoverflies for ID

[Africa]

Any help with ID most welcome. All photos taken in my garden or local park end of May-June 2010.

[bughunter]

I think the first is a sawfly but wouldn't like to be more specific! The third is Volucella pellucens.

[Jason Green]

Evening A,

The first is a Sawfly. The next is a male, albeit perhaps poorly-marked Epistrophe eligans. The fourth is as BH has said, and the last I can't help with - the wing venation doesn't show enough to try getting to family-level.

Take care,

Jason

[oxycera]

First looks like a Dolerus sp. The orange bits would probably be a strong clue to specific identity, so trawling the web might be useful if a reference collection is not to hand.

[Africa]

Thank you bughunter, oxycera and Jason!