Moreiria maura (French Guiana)

Moreiria maura (French Guiana)
This is quite distinctive little species – similar to Leschenaultia but different. Determination by Monty Wood.

Gonia crassicornis (French Guiana)

Gonia crassicornis (French Guiana)
This is apparently a common species around the Caribbean. Determination by Monty Wood.

Jurinia notata & Jurinia sp. (French Guiana & Bolivia)

Jurinia notata & Jurinia sp. (French Guiana & Bolivia)
Determinations by Monty Wood. EDIT (6/8/2011): After a trip to the BMNH I now believe that the first specimen is probably Jurinia notata.

Eucelatoria sp. (Bolivia, French Guiana)

Eucelatoria sp. (Bolivia, French Guiana)
This is a very distinctively marked genus. Determinations by Monty Wood.

Copecrypta (Bolivia, French Guiana)

Copecrypta (Bolivia, French Guiana)
These 2 flies are either Copecrypta or a genus very close to it.

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:

Chetogena sp. (French Guiana)

Chetogena sp. (French Guiana)
This is another familiar genus from the Palearctic and North America and these 2 specimens show some extremes of size and morphology – it is quite a diverse genus. Determined by Monty Wood.

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:

Archytas (French Guiana & Brazil)

Archytas (French Guiana & Brazil)
The following is a selection of Archytas sp. from both French Guiana and Brazil showing some of the immense diversity of this genus. Despite their huge variability Archytas spp. usually have a characteristic change in colouration between tergites 1-4 and tergite 5 – the whole abdomen is shiny but tergites 1-4 have a faint, pale ...

Mont Itoupé samples

Mont Itoupé samples
I have just received a really exciting batch of Diptera from Mont Itoupé, French Guiana. This batch comes courtesy of the Parc Amazonien de Guyane and was collected by Stéphane Brule and his colleagues at Société Entomologique Antilles-Guyane (S.E.A.G.). Stéphane also included a few samples that he collected in the northern regions, which come with ...

A few forgotten French Guianan insects 6

A few forgotten French Guianan insects
The other night I was looking through an old box of insects and discovered 5 trays of mixed French Guianan insects from my trip there in 2000. Most are Hymenoptera but there are a few interesting Diptera and other orders so I have decided to mount them and see who would like them. More photos ...

Mimicry in neotropical Asilidae 1

Mimicry in neotropical Asilidae
These are a few asilids I picked up in French Guiana, collected along forest edges in clearings where they sun themselves. When compared to bees of the genus Eulaema it is clear that they are very strong mimics but it is unclear to me why they copy Eulaema and not one of the other, commoner ...

French Guianan bumblebees

French Guianan bumblebees
Here is a selection of bumblebees and carpenter bees that I collected in French Guiana in 2000 – plus 1 that I was given. With a little help from Mitchener’s “Bees of the World” and some prompting from David Notton at the NHM I have identified these to genus: (scale marks are 1mm apart in ...

Euglossine bees 2

Euglossine bees
I have just been working through some euglossine bees that I obtained over the years from various sources – French Guiana (myself & Philip Soler) and Ecuador (Andrew Neild). With a little bit of keying (Mitchener’s “Bees of the World” & Lynn Kimsey’s key to the genus Exaerete) I discovered that they broke down to: ...

Tropical Pompilidae & Sphecidae 1

Tropical Pompilidae & Sphecidae
Yesterday Colin Vardy got in touch with me to ask if I was still interested to get my old French Guianan pompilids identified. Colin normally charges for his time but he had a batch of French Guianan to identify so offered to do mine at the same time. This offer was very generous of him ...

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 ...

Cerotachina sp. (fg-taxon #97) 1

Cerotachina sp. (fg-taxon #97)
This little gem is another multifissicorn species with feathered antennae – similar to the other ‘featherface’ tachinids, like Borgmeiermyia and Cryptocladocera. However, after running this through Arnaud (1963) it keys out as Cerotachina but doesn’t conform to either of the 2 known species so I am considering this a new, as yet undescribed species. In ...

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.

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 ...