Atactosturmia ??? (Surinam)

Atactosturmia ??? (Surinam)
Yet another fly that keys to Atactosturmia … would be nice one day to know which of them really are Atactosturmia ūüėČ

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 ...

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.

close to Prosenoides (French Guiana)

close to Prosenoides (French Guiana)
Last night I went through a tray of tachinids with a plumose arista and was amazed to see this fly with an incredibly long, straight proboscis, which I must have overlooked countless times.

Ebenia sp. ??? (French Guiana)

Ebenia sp. ??? (French Guiana)
Recently I have found quite a few small, black tachinids with a very plumose arista. Some are entirely black and others are a little dusted but they all have the anterior katepisternal bristle directly ventral to the pleural suture, which is a very unusual feature and suggests to me that if they aren’t Ebenia (a ...

Atactosturmia/Leschenaultia/Lespesia sp. ??? (Bolivia)

Atactosturmia/Leschenaultia/Lespesia sp. ??? (Bolivia)
This specimen is proving to be a real problem Рit keys to Atactosturmia because it has 3 rows of small hairs outside the vibrissa and a bristle-comb on the hind tibia (amongst other things). But Monty things that it looks more like Leschenaultia or a black Lespesia, which only have 1 row of hairs outside ...

Drino sp. ??? (French Guiana)

Drino sp. ??? (French Guiana)
Needs confirmation but the lack of occellar bristles is fairly indicative.

Thelairaporia sp. ??? (French Guiana)

Thelairaporia sp. ??? (French Guiana)
Needs confirmation.

Zizyphosturmia sp. ??? (French Guiana)

Zizyphosturmia sp. ??? (French Guiana)
Needs confirmation.

Argyrochaetona sp. (French Guiana)

Argyrochaetona sp. (French Guiana)
This little Carcelia-like tachinid stood out from the rest of the Carcelia and Houghia spp. because the dusting was very different and the humeral callus had bristles arranged in a line. I have made a slightly tentative identification of Argyrochaetona sp. because it runs very well to this genus in Monty’s key (even up to ...

Pennapoda sp. ??? (pe-taxon #30)

Pennapoda sp. ??? (pe-taxon #30)
This little phasiine is undoubtably a member of the Trichopodini, from the leaf-like bracts along the hind tibiae. This is very similar to some of the taxa from French Guiana – namely fg-taxon #8 #9 & #43. EDIT (04/10/2010): This keys quite comfortably to Homogenia sp. but it is much smaller than the other Homogenia ...

pe-taxon #18

pe-taxon #18
This is an interesting taxon with a very distinctive, dark patch of bristles on the underside of tergites 4 & 5 Рrather like a broad Sturmia-spot. EDIT (09/10/2010): This vaguely resembles a Masiphya, with its Sturmia-spot and a few other bristle arrangements Рbut it has to many differences for me to place it more ...

Masiphya sp. male ??? (pe-taxon #17)

Masiphya sp. male ??? (pe-taxon #17)
This is a fairly typical tachinid but has been extracted from the others by a similar trait for a flattened abdomen with very distinctive male genitalia, clearly visible underneath. EDIT (Monty Wood 26/9/2010): These are all clearly Masiphya sp. males, with the very characteristic male genitalia and pale Sturmia-spot. This taxon is slightly unusual in ...

possibly Arrhinactia sp. ??? (pe-taxon #15)

possibly Arrhinactia sp. ??? (pe-taxon #15)
This is an interesting and very prolific taxon that might, on the face of it, seem to be unexceptional. But it stands out from the others by having a very peculiar abdomen shape – laterally compressed at the apex with the male terminalia protruding from the most ventral part. The abdominal dusting colour & pattern ...

close to Crocinosoma ??? (pe-taxon #13)

close to Crocinosoma ??? (pe-taxon #13)
This taxon seems very prolific and quite consistent in its morphology too, though I am not assuming that it represents a single species. This taxon resembles some individuals of fg-taxon #22 but has a much longer proboscis. EDIT (04/10/2010): This keys to Crocinosoma and it looks similar to a named specimen but antenna-3 is the wrong ...

Atacta sp. (pe-taxon #12)

Atacta sp. (pe-taxon #12)
This is another small Belvosia-type tachinid from Peru – compare this with my photos of a similar taxon from French Guiana. This is much more heavily dusted than other, larger Belvosia spp. but the final tergite is white-dusted like the others. EDIT (25/2/2010): Norm Woodley today got in touch and has said that these species ...