Bulletin Volume 179-181

Bulletin Volume 179-181

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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. 1915 edition. Excerpt: ...and Science, as Cecidomyia s a l i c i s. Later, Osten Sackcn proposed this specific name for the preoccupied s a l i c i s. This species was apparently redescribed by Walsh as Cecidomyia siliqua. Kcrtesz, in 1902, makes both s a l i c i s Fitch and rigidae O. S. synonyms of the Walsh species. The preceding, we do not believe, can be justified by the rules of priority. Torymus ostensackenii D. T. was reared from this midge. Gall. This is an apical or subapical deformity, fusiform in shape, about an inch long and tipped with a rather characteristic, slender, curved beak. (Plate 10, figure 2). Galls producing parasites only are almost invariably smaller and usually vary somewhat from the normal. Phytophaga walshii Felt 1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 371 (Mayetiola) This species was reared at Lake Michigan Beach, Ill., on spongy or clustered galls on dwarf willow, by Prof. James G. Needham, presumably in the spring of 1906. Gall. This is described by Professor Needham simply as a spongy or clustered gall on dwarf willow, possibly only a variety of habdophaga strobiloides Walsh. (Plate 12, figure 1). Larva. Stout, 5 mm long, yellowish or yellowish white, broadly rounded. Head small; antennae short, tapering; breastbone bidentate, the points diverging, the shaft rudimentary. Skin coarsely shagreened; posterior extremity broadly rounded. Male. Length 4 mm. Antennae extending to the sixth abdominal segment, very thickly haired, light brown; 25-26 segments, the fifth with a stem three-fourths the length of the basal-enlargement, which latter has a length one-half greater than its diameter; terminal segment produced, slender. Palpi; first segment narrowly oval, second a little broader, third one-third longer than the second, ..show more

Product details

  • Paperback | 238 pages
  • 189 x 246 x 13mm | 431g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236939336
  • 9781236939333