Extermination of the Gypsy Moth; Report

Extermination of the Gypsy Moth; Report

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1892 edition. Excerpt: ...Prothorax small, narrowed posteriorly, the lateral edges slightly produced. The posterior two-thirds of segment bears a quite prominent impressed dorsal line. Thorax with granular punctures. Elytra striate, each bearing three rows of small impressed greenish dots. Under side of the body somewhat wrinkled and punctured. Fore tarsi of the female (Fig. 6) simple. Fore tarsi of male (Figs. 7, 8) have the first four joints hairy beneath; this character is not only of value as a means of determining the sexes, but is also of specific importance. Calosoma Calidum (Fab.). A male and female Calosoma calidum, which were taken early in September, 1896, were immediately placed in a breeding jar. On September 3 they were observed to copulate, and on the following day fourteen eggs were found in the jar. Three of these eggs were preserved for study, but, owing to the death of a number of tht; larvae during the early stages, only four pupated. From these survivors the following brief notes on the life history of this species were prepared: --Egg.--(Plate 4, Fig. 2.) Length, 4 mm.; width, 1.7 mm. Form similar to that of C. frigidum, but tapering somewhat more toward the lower end. Color, light amber. Hatching took place in seven days from the date of oviposition. First Stage.--Length, 8 mm.; width, 2 mm. at third thoracic segment. Form ellipsoidal, tapering more gradually toward the last segment than in the corresponding stage of C. frigidum. General color of the body and For figure of imago see The Gypsy Moth, Forbuah and Fernald, Plate 63, Fi-. 1, 1896. mouth parts dull black, not shining. Head large, as long as wide, dorsal surface flattened; palpi prominent, longer than antennae. Posterior margin of the head somewhat emarginate at the centre....show more

Product details

  • Paperback | 160 pages
  • 189 x 246 x 9mm | 299g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236618866
  • 9781236618863