Adapted from Jim Conrad's
Naturalist Newsletter of March 31, 2008
issued from Mexico's Southernmost State, CHIAPAS

PAPER WASP NESTS

You see lots of paper wasp nests here, such as the one below.

PAPER WASP NESTS

Not only are such nests commonly seen but also there's a good variety of types, each type being produced by a particular wasp species. Some nests are spherical, others very long, and some quite small. There's one that's just a flat sheet stuck to a tree trunk, with the cells exposed, and these are famed as the most aggressive stingers, sometimes killing people who wander too close.

There's always a discussion as to whether such nests are built by bees or wasps. Structures such as the one in the picture consisting of papery cells surrounded by a leathery paper covering are made by wasps. That's not saying much, though, because the world of wasps is enormous, embracing several wasp families. Species in some families build mud nests but members of the vast Paper or Vespid Wasp Family mostly build nests of plant fiber chewed until it forms paper. Yellowjackets and hornets are members of the Paper Wasp Family. I provide a nice breakdown of the most common wasp types, and a detailed look at one paper-wasp's lifecycle, at http://www.backyardnature.net/wasps.htm.

Each time I see a hornet-type nest I remember how frequently I used to see them as a kid in Kentucky back in the 50s and 60s, but now they're very rare. I've always assumed it was pesticides that did them in, but here we live in a soup of agricultural chemicals. Here the chemicals are new on the scene, however, so maybe in a few years Chiapas's big paper-wasp nests also will disappear.


From the September 29, 2008 Newsletter:
A PAPER-WASP NEST (in the Yucatán)

Almost at head level on the lowest branches of the very dense, dark-green Guaya, Talisia olivaeformis, tree in my backyard there's a paper-wasp nest about the size of a human adult's head, shown below:

.PAPER-WASP NEST in Yucatan, Mexico

One neat feature of this nest is that you can see how as it was constructed it simply incorporated twigs and leaves occupying the space of the future nest. At the nest's top, look at how twigs enter the nest; they exit on the opposite side. At the nest's bottom you can see how the growing nest is in the process of engulfing a leaf.

PAPER-WASP NEST entrance, Yucatan, Mexico

Above you can see into the entrance. When this image first appeared on my screen the entrance showed us as nothing but a black hole, but with PhotoShop I overexposed the hole until the hexagonal cells inside showed up. Toward the picture's bottom wasps agitated by my presence are swarming out so fast that they're only blurs. Only one stung me, and it wasn't very painful, about like a "sweat-bee's" sting in the North. These little beings are not at all eager to sting.

My neighbors tell me that in the old days people would tear open the nests for the cells filled with grubs developing into adult workers. The grubs were considered good eating.

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