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 ...

Neobrachelia sp. (Peru)

Neobrachelia sp. (Peru)
This is a Neobrachelia sp. – the colours have come out a little bit too green in the photos – the dusting is really yellowish-grey. Det: Monty Wood, 2010.

Pseudochaeta sp. (Peru)

Pseudochaeta sp. (Peru)
This is a specimen of Pseudochaeta – a Carcelia-type tachinid but with a row of strong facial-ridge bristles.

Homogenia sp. (Brazil)

Homogenia sp. (Brazil)
These quite large (>1cm) phasiines are obviously in the tribe Trichopodini but they only have small leaf-shaped hairs on the hind tibiae. Det: Monty Wood, 2010.

Sturmiodexia sp. (French Guiana)

Sturmiodexia sp. (French Guiana)
As the name suggests these are dexiines that look remarkably similar to relatives of Sturmia, such as Winthemia. However these are clearly not Winthemia because they have a very plumose arista. Det: Monty Wood, 2010.

Siphosturmia sp. (French Guiana)

Siphosturmia sp. (French Guiana)
These are 2 Siphosturmia spp. The first looks very like a Winthemia but on closer examination is has 4 katepisternal bristles, not 2. EDIT (05/10/2010): I am a little suspicious about the second specimen – I think I might have written the wrong name down because the humeral callus has a triangle of bristles, and ...

Pseudosiphona sp. (French Guiana)

Pseudosiphona sp. (French Guiana)
The Pseudosiphona look superficially like a Siphona but with a much shorter labrum. You should also be able to just make out the strong ventral bristle on the katepisternum. Det: Monty Wood, 2010.

Pseudochaeta sp. (French Guiana)

Pseudochaeta sp. (French Guiana)
Pseudochaeta is another of the Carcelia-type tachinids, with large eyes, but it also lacks the tuft of hairs on the hind coxa, present on Carcelia. It also has a strong row of facial-ridge bristles. EDIT (09/10/2010): I have found a second specimen virtually identical to this one from Peru. Det: Monty Wood, 2010.

Phytomyptera sp. (French Guiana)

Phytomyptera sp. (French Guiana)
Det: Monty Wood, 2010.

Houghia sp. (French Guiana)

Houghia sp. (French Guiana)
Here are a few more Carcelia-like tachinids but this time belonging to the genus Houghia, which lacks the tuft of hairs on the hind coxa: Det: Monty Wood, 2010.

Hypotachina chrysophora (French Guiana)

Hypotachina chrysophora (French Guiana)
Det: Monty Wood, 2010.

Ervia sp. (French Guiana)

Ervia sp. (French Guiana)
Det: Monty Wood, 2010.

Crocinosoma sp. (French Guiana)

Crocinosoma sp. (French Guiana)
Det: Monty Wood, 2010.

What a difference a day makes … 2

What a difference a day makes ...
Here I just wanted to show you how Chrysoexorista spp. loose their colour almost over night. This first photos show how the Chrysoexorista looked a few hours after it had been removed from the malaise trap alcohol and the last 3 show how it looks now:

Ceromya sp. (French Guiana)

Ceromya sp. (French Guiana)
As you might expect, the siphonines are well represented in the neotropics and familiar genera, like Siphona, Actia and Ceromya can be found. The group is quite easy to determine from the small size, hairy r4+5 (often also r1 and cu) and long, converging or parallel subapical scutellar bristles. Beyond that Monty’s key splits the ...

Carcelia sp. (x2) (French Guiana)

Carcelia sp. (x2) (French Guiana)
The genus Carcelia seems to be fairly ubiquitous around the world. The presence of the extremely deep eyes and very narrow strip of gena (the eye is at least 11x bigger than the gena) and the presence of a tuft of small hairs on the hind coxa is very distinctive. In the following photos the ...

a genus close to Borgmeiermyia (French Guiana)

a genus close to Borgmeiermyia (French Guiana)
Det: Monty Wood, 2010

probably Arrhinactia sp. (Peru)

probably Arrhinactia sp. (Peru)
This is quite a distinctive and very common taxon in the peruvian samples. The fly has a clear dusting pattern and the tip of the abdomen is laterally compressed and knife-like. Det: Monty Wood, 2010.

Anisia sp. (French Guiana)

Anisia sp. (French Guiana)
This genus is primarily a parasitoid of orthopterans. Det: Monty Wood, 2010.

Xanthomelanodes sp. (French Guiana)

Xanthomelanodes sp. (French Guiana)
One of the commonest phasiine genera – note the strong divergent lateral scutellars. Determination by Monty Wood.