Adventurous French Guyana

I am very sorry for being away for so long. I will be posting some personal impressions and comments on some of my latest trips... and on ants I have seen! I will start with French Guyana. I spent 10 days there after fire ants, Solenopsis saevissima. The little bastards almost killed me. I thought Brazilian fire ants (including S. invicta most readers here know) were nasty enough -- well, I had not yet met the fire ants in Guyana. They are larger, faster, redder (if there is such a word), and angrier!! Their underground nests (mounds are small because of the soil quality) undoubtedly stem directly from Hell: once you touch them, a surge of red-hot walking needles bursts straight for you. And they know how to get around any protection you have. I will give you the general idea below. 

This is one of the places in where I could find many nests. As you can see, there are no visible mounds. You step on a nest and you will soon realize it -- nice and gentle!

 A glimpse on the pesky things. I will illustrate them further in following posts. As I said, quite reddish, actually rather orange in colour. They were nasty!

 

This is outcome of my first day in the field. Disgusting and uncomfortable, to say the least. Situation got worst with passing days, no matter what protections I wore.

Yay! New published paper!

It was difficult in all stages, and did not come out 100% the way I think it should, but hell yeah, I am very happy with it!

Dos Santos Pinto, J.R.A., Fox, E.G.P., Saidemberg, D.M., Santos, L.D., Da Silva Menegasso, A.R., Costa-Manso, E., MacHado, E.A., Bueno, O.C., Palma, M.S., 2012. Proteomic view of the venom from the fire ant Solenopsis invicta Buren. J. Proteome Res. 11, 4643–4653. https://doi.org/10.1021/pr300451g

http://cen.acs.org/articles/90/web/2012/08/Proteins-Revealed-Fire-Ant-Venom.html

Any comments are welcome!!

New published larval description!

Aren't they amazing?? Take a face-down look into the leaf-cutting babies rosy cheeks, below.

I will upload it to my list of publication, soon enough, and update this post. Have fun!

The paper can be found as below:

Solis, D.R., Fox, E.G.P., Ceccato, M., Reiss, I.C., Décio, P., Lorenzon, N., da Silva Menegasso, A.R., Bueno, O.C., 2012. On the morphology of the worker immatures of the leafcutter ant Atta sexdens Linnaeus (Hymenoptera: Formicidae). Microsc. Res. Tech. 75, 1059–1065. https://doi.org/10.1002/jemt.22031

Always loved taking pics of Odonata. I think they are quite elegant, posing to pics. However should you try to capture them, they fly away within a second. I have been told they can bite, severely, if mishandled. Unfortunately I never was quick enough to try them.

The one at the far top was photographed in a Park at Rio Claro, Sao Paulo, Brazil. The second one was photographed at Itaipava, Rio de Janeiro, Brazil, in a house garden by the pool.

Amazing little fairies...

Stingy News

So!

I have some interesting news:

Note: this pic has nothing to do with the post. except that it is about ants. A gang of Camponotus abusing a poor Atta male who happened to be in the wrong place at the wrong time. Cest la vie...

1) In a couple of months I hope I will be able to post here my new method for ant venom extraction! It is now submitted, and I am confident it will generate some interesting discussions!

2) I will be going to French Guyana in a couple of months to collect fire ants in a collaboration with Switzerland! I am most totally thrilled at the prospect. Will certainly fill this blog with images from the trip!

3) Also I am getting my first experiences inject fire ant venom compounds in our HPLC system. Since all is new I cannot say for certain if our first impressions are good... let us hope!

One video we made some years ago

English and Spanish captions available!

Please if any readers can help me ID the cockroaches showing in this video, it would be GREAT! I would like to add species to the video description.

This is a very intriguing video, I totally recommend it.

Also available at:

http://www.fulldocumentary.com/science/default.asp?action=listing&id=1572