The Coccidae of Kansas

The Coccidae of Kansas

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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. 1899 edition. Excerpt: ...S. C., both in 1894." _ In our own collections it bears the lot number 399, which refers to like number in accession book. It is here recorded as being received from Wichita, Kan., July 23, 1895. The accompanying letter stated that these insects have been infesting the trees for three or four years. On the twigs of this same plum tree Aspidiotus anc;/lus and Aspidlotusforbesi were present. This is the second instance of the association in goodly numbers of these two species, the nrst being lot D, on crab-apple? A number of the scales of . pranz' showed the effects of parasites. specimen was sent to Doctor Howard, who finds it to be / gus leeamlz' Fitch. Parlatoria pergandei Comstock. Plate XXIV, figs. 1, 2. This species is differentiated by Comstock from its nearest ally, Parlatoria proteus Curt., principally by the shape of scale of female: 4. This lot was discussed in this journal, vol. VIII. No. lijp. 3. Mention is there made of the presence of another species besides A. upon the cra tree, but the determination of the second species as A. ancylus was not given at that time. circular in pergandez', oblong in proteus; by the fourth lobe: present in perganclez', absent in proteus. It is upon these characters that specimens in hand are determined as pergandei. Comstock's comparisons were probably made without specimens of proteus at hand, since he mentions in a footnote Signoret's figures and description." Later, however, Comstock speaks of receiving specimens of proteus from Signoret," confirming his conception of this species. The exact status of pergandei, however, does not seem to be more

Product details

  • Paperback | 26 pages
  • 189 x 246 x 1mm | 68g
  • United States
  • English
  • black & white illustrations
  • 1236900553
  • 9781236900555