Blepharipa sp. (Brazil)

Blepharipa sp. (Brazil)
Blepharipa is a familiar genus of palearctic flies to me, as I am sent them occasionally from European material. But it was quite a surprise to hear Monty say that I had a South American Blepharipa … different species of course (and unknown so far) but the same genus, nonetheless.

Belvosia sp. (including Triacora sp.)

Belvosia sp. (including Triacora sp.)
This is a selection of Belvosia spp. but also including the very closely related Tricora, which is probably a subgenus: Determinations by Monty Wood.

Atacta sp. (French Guiana)

Atacta sp. (French Guiana)
This genus is one of my favourites – related to Belvosia but smaller and brighter in colouration. Determination by Monty Wood:

Pelecotheca (Cryptocladocera) sp. male (pe-taxon #25)

Pelecotheca (Cryptocladocera) sp. male (pe-taxon #25)
This is the only Cryptocladocera in the peruvian sample and it looks very like the ones from French Guiana – fg-taxon #04.

Multifissicorn tachinid faces (Pelecotheca s.g. Cerotachina & Cryptocladocera)

Multifissicorn tachinid faces (Pelecotheca s.g. Cerotachina & Cryptocladocera)
This is a little post just to show the range of antennal branching in different multifissicorn tachinids – apologies for the poor quality of the photos. As you can see, Cryptocladocera spp. have huge branches on their antennae while both of the 2 new species have much shorter antennal branches, which seems closer to the ...

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 ...

Pelecotheca (Cerotachina) sp. male (pe-taxon #14)

Pelecotheca (Cerotachina) sp. male (pe-taxon #14)
This appears to be another new, hitherto undescribed, species closely related to Cerotachina – it has no median discals and antenna-3 is very shallowly multifissicorn. That is, the third antennal segment has bumps on both sides covered with tufts of long hairs. These bumps are shorter than the branches on my French Guianan Cerotachina and ...

Belvosia sp. (French Guiana, ex. Villu Soon)

Belvosia sp. (French Guiana, ex. Villu Soon)
This is a lovely specimen of Belvosia, donated by Villu Soon from specimens he collected in French Guiana.

Belvosia sp. (pe-taxon #08)

Belvosia sp. (pe-taxon #08)
A really rather nice species of Belvosia – a member of the Goniinae, which is shown clearly by the quite Gonia-shaped head  🙂 The genus contains about 70 very similar species and was last revised by Aldrich in 1928* * J.M. Aldrich. 1928. A revision of the American parasitic flies belonging to the genus Belvosia. ...

Masiphya sp. (pe-taxon #02)

Masiphya sp. (pe-taxon #02)
This is a really interesting taxon group (genus?) where the males have very Sarcophaga-like genitalia – quite large, orange and hooked under the abdomen. They also seem to have a tuft of yellow hairs, like a Sturmia-spot, on the ventral side of tergite 5. EDIT (Monty Wood, 26/9/2010): This is a group of quite unusual ...

Pelecotheca (prob. Cryptocladocera) sp. female (fg-taxon #90)

Pelecotheca (prob. Cryptocladocera) sp. female (fg-taxon #90)
This one is unusual because the abdomen is tipped with a strange, shiny, flattened structure that resembles a squashed tube. EDIT (Monty Wood 26/9/2010): This is an example of a female Pelecotheca (probably the female of the large multi-fissicorn featherfaces so sub-genus Cryptocladocera). The flattened shiny structure is distinctive of this group of sub-genera.

fg-taxon #89 (Masiphya sp. – male)

fg-taxon #89 (Masiphya sp. - male)
A really unusual medium-sized tachinid with large curved-under genitalia. In addition to that it has widely separated T1+2 marginals, a projecting mouth edge, 2 katepisternals, quite short antennae & a small ‘Sturmia-spot’. EDIT (Monty Wood 26/9/2010): This is a male Masiphya sp. – a genus with highly distinctive male genitalia and (usually) with vibrissae high ...

fg-taxon-79 (Atacta sp.) 2

fg-taxon-79 (Atacta sp.)
This is another really lovely tachinid of medium size but with everything very rounded. The head is similar to some of the Goniini and even the posterior segments of the abdomen are rounded and whitened. UPDATE (30/1/2010): After comparing with the material at the NHM in London I think this is a species of Belvosia ...

fg-taxon #77 (Chrysoexorista sp.)

fg-taxon #77 (Chrysoexorista sp.)
This is possibly the most beautiful tachinid I have ever seen. The photos say it all! 🙂 In this taxon the irredescent green colour comes from layers of dusting, rather than the usual duller, green-coloured pigments found in European genera, such as Gymnocheta and Lucilia. It is worth noting that days after this photo was ...

Pelecotheca (Cryptocladocera) sp. male (fg-taxon #4) 3

Pelecotheca (Cryptocladocera) sp. male (fg-taxon #4)
This is one of my favourite French Guianan tachinids! At first glance it looks fairly standard but when you examine the face you will see that antennal segment 3 (normally rectangular) has been formed into a feather-like structure, similar in design to moth antennae! This structure is recessed in a deep concavity in the face ...