Various interesting Polideini (Surinam)

Various interesting Polideini (Surinam)
The Polideini is becoming one of my favourite tribes because they have such unusual features. Most tachinids have a disc-like, hairy lappet covering the metathoracic spiracle (the hind one on the thorax) but the Polideini all have paired hairy lappets that don’t quite meet at the top, leaving a little hole. They also have a ...

Chrysotachina sp. (French Guiana)

Chrysotachina sp. (French Guiana)
Chrysotachina is a very distinctive genus of metallic coloured tachinids. They are not common but they do come up in samples quite regularly. They have been reared from Hesperidae. Determination by Monty Wood:

Chrysotachina sp. (pe-taxon #03)

Chrysotachina sp. (pe-taxon #03)
This little tachinine fly (7mm) is a very beautiful blue metallic colour, which suggests to me that it might belong to the genus Chrysotachina but I haven’t done any research yet so I could be wrong – it is certainly smaller than most Chrysotachina. EDIT (Monty Wood, 26/9/2010): This is indeed a Chrysotachina 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 ...

Chrysotachina cf. braueri & ornata (fg-taxon #21)

Chrysotachina cf. braueri & ornata (fg-taxon #21)
The specimens in this taxon group are all metallic tachinids and almost certainly comprise at least 2 taxa. The first is relatively undusted and looks most like Chrysotachina braueri while the other, dusted taxon, looks most like Chrysotachina ornata but I am not convinced that the genitalia match closely enough to be the same species. ...