. Annual report. Entomological Society of Ontario; Insect pests; Insects. 5(5 REPORT OF THE ENTOMOLOGICAL sheeting, 1/16 of an inch thick. This consisted of solid sides with straps of the same material on which rested removable shelves, 3% inches square, which in turn carried the filter papers (Fig. 2). To prevent trapping the parasites between the sides of the museum jar and the solid sides of the rack, holes were bored in the latter between the shelf supports. The museum jars had ground edges and lids to make a tight seal, and for ventilation two half-inch holes were made in the lids and cov
. Annual report. Entomological Society of Ontario; Insect pests; Insects. 5(5 REPORT OF THE ENTOMOLOGICAL sheeting, 1/16 of an inch thick. This consisted of solid sides with straps of the same material on which rested removable shelves, 3% inches square, which in turn carried the filter papers (Fig. 2). To prevent trapping the parasites between the sides of the museum jar and the solid sides of the rack, holes were bored in the latter between the shelf supports. The museum jars had ground edges and lids to make a tight seal, and for ventilation two half-inch holes were made in the lids and covered with fine nylon cloth (Fig. 3). A few split raisins and short lengths of moistened dental cotton were placed in each jar to provide food and moisture. The rearing was done in darkness as L. tritoma usually hides in crevices away from Fig. 3. Museum jar, lid, and rack used in rearing L. tritoma in the laboratory on D melanogaster. The host puparia were incubated for 10 days after removal from the rearing jars to en- able flies to emerge from unparasitized puparia. The parasitized puparia were placed for the remainder of the incubation period in 125-ounce jars. Parasites emerged between the 21st and the 36th day, with a peak in numbers at the 28th to the 30th day. An emergence of 1000 per day was attained by the daily exposure of 10 filter papers of host puparia to 400 mated females in each of four rearing jars. On emergence, the parasites were collected and stored in pint milk bottles at °C. until required for biological studies or release in the field. A length of slightly moistened dental cotton was added to each storage bottle. Parasites stored for four weeks suffered no significant mortality. LIFE HISTORY AND HABITS The life-history and habits of L. tritoma were studied after the technique for rearing the insect in the laboratory had been Please note that these images are extracted from scanned page images that may have been digitally enhanced fo
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectinsects, bookyear1872
