That long black wasp, commonly called a Jack Spaniard, builds pensile paper nests under every roof and shed.

Watch, now, this more delicate brown wasp, probably one of the Pelopoei of whom we have read in Mr.Gosse's Naturalist in Jamaica and Mr.Bates's Travels on the Amazons.

She has made under a shelf a mud nest of three long cells, and filled them one by one with small spiders, and the precious egg which, when hatched, is to feed on them.

One hundred and eight spiders we have counted in a single nest like this; and the wasp, much of the same shape as the Jack Spaniard, but smaller, works, unlike him, alone, or at least only with her husband's help.

The long mud nest is built upright, often in the angle of a doorpost or panel; and always added to, and entered from, below.