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THE PARASITE OF PHYLLOXERA VASTATRIX, AND THE GALL INSECT OF THE NETTLE TREE

Published online by Cambridge University Press:  31 May 2012

Thomas W. Fyles
Thomas W. Fyles
Affiliation:
Cowansville, P. Q.
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Extract

Upon request, I sent to Dr. H. A. Hagen specimens of the parasite of the Phylloxera, Diplosis (?) grassator. At the same time I sent him specimens of the Psylla described on page 198 of vol. xiv. Dr. Hagen favored me with information as follows:—

“The fly is a Cecidomyia; I think it is not sure that it belongs to Diplosis. At least the reticulation of the wing differs in having the median vein straight, and the fork at the hind margin wanting. You will see in Osten Sacken's Catalogue that the museums do not possess this type for Cecidomyia. I have gone through the literature, and find till now your species is not described. The larva is shrivelled up, therefore the trophi are not visible.

Type
Articles
Information
The Canadian Entomologist , Volume 15 , Issue 5 , May 1883 , pp. 83 - 84
Copyright
Copyright © Entomological Society of Canada 1883

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