The Kansas University Science Bulletin Volume 14, Nos. 1-21

The Kansas University Science Bulletin Volume 14, Nos. 1-21

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1922 edition. Excerpt: ... in the least to remove the insect and place same under the binocular to watch the process of feeding. The newly emerged nymphs, either from the egg or molt, are very bright red in color, with eyes, antennae, beak and legs very dark. They become dark, however, in a very short time, except the nymphs which emerge from the eggs; these are red for more than a day. The adults are very pale pink or yellowish when they first emerge, with eyes, antennae, beak and legs very dark. They become dull black in a short time, with rather pale, obscure markings on the wing covers. DESCRIPTION OF STAGES. See plate XXXIV. THE EGG. Size. Length about 1.2 mm.; width across widest part, .3 mm. Color. Pearly white and transparent when first laid, becoming yellow in color three days later. The fourth-day egg shows red eyelike spot, and two days later the entire egg becomes red in color; another day later, making seven days from time egg was laid, it is blood red with very dark, eyelike spots. When nine days old the egg is orange red, and on the twelfth day the nymph emerges. A few hours before hatching the egg becomes pale or whitish in color. Shape. General shape shown by drawing. It is elongate, larger and more broadly rounded at one end, tapering and much smaller at the other end, with dorsal part arched. FIRST IN STAR. Size. Total length of one day-old nymph, about 1.1 mm.; width across abdomen, .6 mm. Color. Red to light reddish brown, with dark spot on fifth abdominal segment, on the median line of the dorsal part. Eyes, legs, beak and antenna black. Structural peculiarities. Rostrum reaching to the apex of the posterior costs. Antennae four-segmented, last joint darker in color and larger than the others. Tarsi one-jointed. Length of first stage, four.
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Product details

  • Paperback | 156 pages
  • 189 x 246 x 8mm | 290g
  • United States
  • English
  • black & white illustrations
  • 1236770315
  • 9781236770318