Acaulona or Xanthomelanopsis ??? (French Guiana & Surinam)

Acaulona or Xanthomelanopsis ??? (French Guiana & Surinam)
Acaulona & Xanthomelanopsis look very similar to Pennapoda spp. but without the leaf-like antero-dorsal bristles on the hind tibia. The only difficulty with these flies is that I just can’t make up my mind whether they have enough dorsocentrals to qualify as Xanthomelanopsis.

Acaulona sp. (pe-taxon #04)

Acaulona sp. (pe-taxon #04)
An interesting little (3-5mm) phasiine taxon – quite prolific in the peruvian samples. EDIT (Monty Wood, 26/9/2010): This is a group of Acaulona sp.

Back to the NHM again …

Back to the NHM again ...
Recently I had a few chances to go back to the NHM in London and work with the world Diptera collections – it was marvellous! I took along some of my larger & more spectacular specimens from North & South America and tried to identify them (with varying levels of success!). I also took lots of ...