. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. I wish to say that I am able to give you only one instance of a parasite having been found, and that was in the vicinity of Tasch- kent (Turkestan), where I noticed in the past year [1910] thai over 20 per cent of the larva? of P. variabilis were attacked by an Ichneumon parasite. Unfortunately I do not know the name of this species of para- site at the present time, other than that it be- longs to the Ichneumonidse. Judging from the elliptical, thick-shelled cocoon it might possibly have been Mesochorus nigripes
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. I wish to say that I am able to give you only one instance of a parasite having been found, and that was in the vicinity of Tasch- kent (Turkestan), where I noticed in the past year [1910] thai over 20 per cent of the larva? of P. variabilis were attacked by an Ichneumon parasite. Unfortunately I do not know the name of this species of para- site at the present time, other than that it be- longs to the Ichneumonidse. Judging from the elliptical, thick-shelled cocoon it might possibly have been Mesochorus nigripes Ratz., which Mr. Ratzeburg (The Ichneu- monidae, III, p. 120) gives as a parasite of P. rumicus. All of these parasites resemble each other to a certain degree, and figure 25 will suffice to illustrate them, for the present at least. At the present stage of this experiment in introducing parasites of the Fig. 23.—Larva of ptero- malid parasite attack- ing pupa of alfalfa w e e v i 1 . Enlarged. (Original.) Fig. 24.—Pupa of pteromalid para- site shown in fig- ures 22 and 23. Greatly enlarged. (Original.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Bureau of Entomology. Washington : G. P. O.
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