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 ...

Daetaleus cf. purpureus (French Guiana & Peru)

Daetaleus cf. purpureus (French Guiana & Peru)
While examining what I thought was a Peruvian Mesembrinella (Calliphoridae, Mesembrinellinae) I realized that I was in fact looking at a tachinid – with a normal metathoracic spiracle and no pale hairs under the scutellum. Then when I examined my trap of Mesembrinella I found 2 more from French Guiana. They key out to Scotiptera (Dexinae) and ...

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.

Zelia sp. (French Guiana & Costa Rica)

Zelia sp. (French Guiana & Costa Rica)
This is a huge genus containing many superficially dissimilar species. Determination by Monty Wood.

Uramya (French Guiana)

Uramya (French Guiana)
Uramya is one of the genera where the males have very long ‘tails’ … sadly this is a female! Determination by Monty Wood.

Calodexia sp. (Ecuador)

Calodexia sp. (Ecuador)
This Calodexia came from a batch of flies kindly sent to me by Eric Fisher. Monty says that Calodexia are cockroach parasitoids and their oviposition technique may explain the strange down-pointing ovipositor:

Ebenia sp. (pe-taxon #28)

Ebenia sp. (pe-taxon #28)
This is a small, black tachinid with plumose antennae, suggesting Dexiinae. These are photos of both the male and the female. EDIT (04/10/2010): This keys very confidently to Ebenia and looks very similar to one identified by Monty. This genus has been reared from chrysomelid beetles.

Pyrrhodexia & Acronacantha nubilipennis (pe-taxon #21)

Pyrrhodexia & Acronacantha nubilipennis (pe-taxon #21)
This is an amazing dexiine with a very Estheria-type face – small antennae, plumose arista, very deep gena, very chin-less profile and a very stretched-out ‘top lip’ with a second, higher pair of vibrissae. The bend in the median vein is quite acute and the part of m after the bend is very concave. There ...

Calodexia sp. (pe-taxon #20)

Calodexia sp. (pe-taxon #20)
This is a close relative of fg-taxon #98 with its rounded abdomen, large eyes and downward-pointing ovipositor. EDIT (09/10/2010): This is undoubtedly a female Calodexia sp. http://chrisraper.org.uk/blog/?p=2495

Telothyria sp. (pe-taxon #09)

Telothyria sp. (pe-taxon #09)
Another strange Pollenia-type tachinid (see my photos of similar taxa from French Guiana). EDIT (26/9/2010): This is clearly a Telothyria sp., with branched hairs on the pleurae.

Beskia aelops from Peru

Beskia aelops from Peru
This is a lovely little dexiine tachinid found across most of the neotropics and into the southern United States – note the colouration, the hatched-shaped antenna-3 and long, curved proboscis 🙂 See also my photos of Beskia from French Guiana.

close to Prosenoides (pe-taxon #01)

close to Prosenoides (pe-taxon #01)
This is the first clearly different but unidentifiable taxon to be split from the peruvian sample. The deep gena and plumose arista suggest that it might be a dexiine and further to this it has a very elongate proboscis and strong median facial ridge – bearing a string similarity to the palearctic genus Prosena. However, ...

fg-taxon #98 (Calodexia sp.) 1

fg-taxon #98 (Calodexia sp.)
This is a really interesting group of species – all very similar in general body shape and with a curious ovipositor that appears to emerge vertically, under the abdomen. EDIT (Monty Wood 26/9/2010): These are all Calodexia spp. – parasitoids of cockroaches. Monty recalls seeing army ants driving invertebrates ahead of them and Calodexia swarming and leaping ...

Cordyligaster petiolata (Sophiini, fg-taxon #85) 2

Cordyligaster petiolata (Sophiini, fg-taxon #85)
This is my current favourite from Villu’s recent sample of tachinids from French Guiana – it looks very closely related to one I found in my last batch – see here. This identification was made by comparing the specimen to material in the NHM in London – many thanks to Erica McAlister & Kim Goodyear ...

fg-taxon #83 (Telothyria sp.) 2

fg-taxon #83 (Telothyria sp.)
This is a strange little tachinid with a fluffy thorax (the hair has been matted by alcohol in the photos) similar to Pollenia (Calliphoridae). It also has extremely large Carcelia-like eyes and narrow gena. The proboscis is also quite long and looks like it might project slightly in front of the mouth edge if it ...

Cordyligaster analis (Sophiini, fg-taxon-78) 2

Cordyligaster analis (Sophiini, fg-taxon-78)
This spectacular fly looks very similar in style to European Mintho spp., but it is in fact a dexiine from the tribe Sophiini. The body length is 13mm, which makes is quite a large species, the calyptrae are very small and the palps are covered with small bristlets. It seems fairly obvious that it is ...

fg-taxon #69 (Billaea group)

fg-taxon #69 (Billaea group)
A large taxon that looks quite sarcophaga-like with: pluomse antennae; bare eyes; wide parafacial; no parafacial bristles and parafrontal restricted to the top of the head; some fine hairs below parafrontals; protruding mouth edge with a few fine bristles on lower facial ridge; rhomboid humeral callus bristles; on the thorax 3 wide vittae + 2 ...

fg-taxon #56

fg-taxon #56
This is another taxon with plumose antenna and a deep gena. This specimen isn’t in great condition but there is another with better wings and otherwise is absolutely identical to this specimen.

fg-taxon #55 (unknown dexiine)

fg-taxon #55 (unknown dexiine)
This is a nice little brightly-marked taxon with bright orange abdominal side patches, contrasting with a dark black body colour; shaded wings; small orange antenna with a plumose arista; and quite a deep gena. Unfortunately my only specimen is not in the best of condition. EDIT (Monty Wood 26/9/2010): This is an unknown genus in ...