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The Internal Anatomy of the Clover Root Mealy-bug, Trionymus trifolii, Forbes (Homoptera, Coccidae).*

Published online by Cambridge University Press:  10 July 2009

W. S. Hough
Affiliation:
Virginia Exp. Station, Winchester, Va.

Extract

The purpose of this paper is to present the more important features of the internal anatomy of a subterranean viviparous mealy-bug commonly found on the roots of clover in the eastern part of the United States. Only the female was studied, since the male has never been found. No attempt was made to present many of the details which were found to resemble homologous parts of the common oviparous mealy-bug, Pseudococcus citri, Risso, as described by Berlese in 1893.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1925

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References

Literature Cited

Berlese, A. (1893). Le Cocciniglie italiane viventi sugli agrumi. Parte I, Dactylopius, pp. 1106.Google Scholar
Buchner, P. (1912). Studien an intrazellularen Symbioten. I. Die intra-zellularen Symbioten der Hemipteren.—Arcdh. für Protistenkunde, xxvi, pp. 2126.Google Scholar
Hough, W.S. (1922). Observations on two Mealy-bugs, Trionymus trifolii Forbes and Pseudococcus maritimus Ehrh.—Entomological News, xxxiii, pp. 171176.Google Scholar
Pierantoni, U. (1913). Struttura ed evoluzione dell’ organo simbiotico di Pseudococcus citri Risso, e ciclo biologico del Coccidomyces dactylopii.— Arch. Für Protistenkunde, xxxi, pp. 300316.Google Scholar
Shingi, G. C. (1919). Embryology of Coccids with special reference to ovary, origin and differentiation of the germ-cells, germ-layers, rudiments of the mid-gut and their intracellular symbionts. —Jour. of Morphology, xxxiii, pp. 73167.Google Scholar
Shrader, F. (1923). The sex ratio and oogenesis of Pseudococcus citri.Zeit-schrift für induktive Abstammungs und Vererbungslehre, xxx, no. 3, pp. 163182.Google Scholar