. Alfalfa, grasshoppers, bees: their relationship. Alfalfa. [from old catalog]; Locusts. [from old catalog]; Bees. [from old catalog]. GRASSHOPPERS IN GENERAL. i:. glands lying under the esophagus. From the esophagus it passes into the crop. The food then enters the gizzard-like proventriculus; the inner walls of this are lined with chitinized processes which, by a series of contractions, grind up the food and pass it on into the stomach proper. Lying alongside of this stomach, and connected to it, can be seen on each side three long tubes. These are called gastric pouches (ceca). because it i
. Alfalfa, grasshoppers, bees: their relationship. Alfalfa. [from old catalog]; Locusts. [from old catalog]; Bees. [from old catalog]. GRASSHOPPERS IN GENERAL. i:. glands lying under the esophagus. From the esophagus it passes into the crop. The food then enters the gizzard-like proventriculus; the inner walls of this are lined with chitinized processes which, by a series of contractions, grind up the food and pass it on into the stomach proper. Lying alongside of this stomach, and connected to it, can be seen on each side three long tubes. These are called gastric pouches (ceca). because it is believed that they secrete a fluid which corresponds to the gastric juice, and this fluid enters the stomach to perform functions similar to that carried on by the gastric juice. The food after leaving the stomach passes into the intestines, the upper part of which is called the ileum and the lower part the colon. At the forward end of the ileum can be seen a large number of tubes (malphigian tubes) run- ning backward. These are believed to perform the same functions as the kidneys do in the higher animals. While the food is in the stomach, and as it passes through the ileum and colon, it is believed that the nutritive portions oozing through the walls of this digestive tube enter the circulation. The waste material is carried off through the colon. Circulatory system.— In this locust there are no arteries and no veins. The circulatory system, as far as organs are concerned, is com- prised of what we are wont to call the heart. This organ is a tube. Fig. 21. (Original.) Ex- terior view of auditory or- gan; Sp. spiracle. Enlarged about fifteen 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 Hunter, Samuel John, 1866- [from old catalog]; Duff, A. H. [from old catalog]. Topeka, Kan. , Press of the s
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectalfalfafromoldcatalo
