. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. NATURAL ENEMIES. 35 Egg Parasites. There were two egg parasites, one, a true egg parasite developing within the egg, and the second, a parasite the eggs of which are prob- ably deposited in the alfalfa stems among, but not in, the eggs. The larva of the latter is predaceous on the masses of weevil eggs as placed by the female weevil, and among them it develops to the adult. MYMARID EGG PARASITE. A mymarid egg parasite, AnapJies sp. (fig. 15), was found in all of the seven shipments received from Italy. It was rec
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. NATURAL ENEMIES. 35 Egg Parasites. There were two egg parasites, one, a true egg parasite developing within the egg, and the second, a parasite the eggs of which are prob- ably deposited in the alfalfa stems among, but not in, the eggs. The larva of the latter is predaceous on the masses of weevil eggs as placed by the female weevil, and among them it develops to the adult. MYMARID EGG PARASITE. A mymarid egg parasite, AnapJies sp. (fig. 15), was found in all of the seven shipments received from Italy. It was received in all stages of development, except perhaps the egg and adult, and was either left in the same boxes, these being perforated with holes and. Fig. 16.—Imported pteromalid egg parasite of the alfalfa weevil: Adult. Greatly enlarged. (Original.) glass tubes inserted (PL XI, fig. 2), or placed in specially prepared boxes (PL XI, fig. 3) which were also perforated and had glass tubes inserted. The parasites were reared from this imported material, and from the parent stock two generations were reared on American egg masses of the alfalfa weevil. The third generation, together with others of the first and second generations and natives from later ship- ments, was placed in field reproduction cages (PL XII, fig. 3) to the number of about 300. These cages were overstocked with eggs by confining numbers of weevils in them. After about 10 days the covers to these cages were removed, thus allowing the generation of parasites that developed within them to escape and scatter freely over the fields. PTEROMALID EGG PARASITE. A pteromalid egg parasite (fig. 16) was likewise found in all of the seven importations. The larva (fig. 17) feeds externally on the egg masses in the alfalfa stems, later transforming to the pupa (fig. 18);. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of th
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