Monday Night Mystery

I had so much fun with the mysterious lump of brown stuff from the other week that I thought we’d do another one.

I’ll give you two bits of information: first, this does have to do with insects. And second, it’s also from the Ecuadorian Amazon.

Ten points to the first person to tell me what this is.

The cumulative points winner for the month of March will win their choice of 1) any 8×10-sized print from my photo galleries, or 2) a guest post here on Myrmecos.

Good luck!

16 thoughts on “Monday Night Mystery”

  1. It is a structure under which ants of the genus Allomerus decemarticulatus hide and wait for their prey to walk over the entrances.
    Its made of fibers of their host plant Hirtella physophora, fixed with a symbiotic ascomycete fungus.

  2. I know I know, it’s part of the carton that Allomerus construct in some myrmecophyte. The one I know is Allomerus demerarae and Cordia nodosa. It’s their special carton construction over the branches and domacia to sit and wait and ambush their prey!

  3. Well, I met them as Allomerus demerarae in southeast Peru. According to the antweb, it’s a senior synonym for A ortoartuculatus, that apparently is a subspecies of A decermaticulatus. This particular mutualism in southeast Peru was with Cordia nodosa, but this genus can built the same cartons in other myrmecophytes different from C. nodosa in different regions. If I could see in the pic some feature of the plant, maybe I could tell

  4. Pingback: Answer to the Monday Night Mystery – MYRMECOS - Insect Photography - Insect Pictures

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