. First lessons in zoology. Zoology. i88 FIRST LESSONS IN ZOOLOGY the "wasp always backs upward out of it and while digging keeps up a low humming sound. After the tunnel is dug about three inches deep she covers up the mouth with a bit of salt crust or little pebbles, and flies away. After some minutes she comes back carrying a limp inch-worm about an inch long, which she drags down into the nest (fig. 142). Awa)' she goes again and soon returns with another inch-worm ; repeating the process until from five. Fig. 146.—Imni;rture stages of the quince ciirculio, Conotrachelus cratngi; at t
. First lessons in zoology. Zoology. i88 FIRST LESSONS IN ZOOLOGY the "wasp always backs upward out of it and while digging keeps up a low humming sound. After the tunnel is dug about three inches deep she covers up the mouth with a bit of salt crust or little pebbles, and flies away. After some minutes she comes back carrying a limp inch-worm about an inch long, which she drags down into the nest (fig. 142). Awa)' she goes again and soon returns with another inch-worm ; repeating the process until from five. Fig. 146.—Imni;rture stages of the quince ciirculio, Conotrachelus cratngi; at the left, the larva natural size and enlarged; at the right, the pupa. The beetle lays its eggs in pits on quinces, and the larva lives inside the quince as a grub; the pupa lives in the ground. (Photograph by M. V. Slingerland.) to ten caterpillars have been stored in the tunnel. All these are alive, but each has been stung in one of its nerve-centers (ganglia) so that it is paralyzed. Finally, down goes the mother Ammophila and lays a single &gg, attaching it to one of the paralyzed caterpillars. She then fills the tunnel with pellets of earth, carefully chew- ing up the larger pieces so as to make a close, well- packed filling (fig. 143). Lastl)', she carefully smooths off the surface and puts a small flat piece of salt crust on. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Kellogg, Vernon L. (Vernon Lyman), 1867-1937. New York, H. Holt and Company
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License: Licensed
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1903
