Monday Night Mystery

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Because I missed last week, tonight’s post will be lumped with the February mysteries for the purposes of calculating the monthly winner.
 
Mystery10

 

Points will be awarded for the first correct guess as follows:

1. What is this, and how was it made? (5 points)
2. What is the genus or species of the insect responsible? (5 points)

The cumulative points winner for the month of February, and tonight, will win their choice of:

1) A guest post here on Myrmecos
2) Any 8×10 print from my insect photography galleries
3) A myrmecos t-shirt

Good luck!

6 thoughts on “Monday Night Mystery”

  1. 1) It is a petiolate nest in which there is probably 2-5 developing larvae/pupae. 2) Ampulicidae, going to guess Ampulex for kicks. I am basing these answers off of an extremely similar-looking and sized-structure I found beneath an overhang in a river in Gamboa, Panama.

  2. This looks like the garbage/midden chamber to a Trachymyrmex nest, created by heating up lead past 1000 degrees F. and pouring it down the nest. Though given how these ants build their nests cement might work just as well.

  3. I’m going to say it’s the a cast of and insect next made using molten aluminium.
    And I’m going to say the genus responsible is Mycetarotes.

  4. I think it was made by pouring molten aluminum into a nest to make a cast as well. I’m gonna say Cyphomyrmex sp. just to be different.

  5. Pingback: – Answer to the Monday Mystery: Trachymyrmex septentrionalis

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