. Annals of the Entomological Society of America. Entomology. 12 Annals Entomological Society of America [Vol. VI, The water in the breeding dishes must be aerated twice daily. The Paquelin Cautery bulb method referred to on page 10 does well when the number of places is few. When these plates are numerous, it is better to construct an aerating device such as shown in figure 2, using old tins, tubing, etc. There. Fig. 2. Aerating Device. A, water reservoir, open at top; B, air chamber; C, stop-cock regulating flow of water into B; R, tee unions made of cork; T, terminal capillary tubes. should
. Annals of the Entomological Society of America. Entomology. 12 Annals Entomological Society of America [Vol. VI, The water in the breeding dishes must be aerated twice daily. The Paquelin Cautery bulb method referred to on page 10 does well when the number of places is few. When these plates are numerous, it is better to construct an aerating device such as shown in figure 2, using old tins, tubing, etc. There. Fig. 2. Aerating Device. A, water reservoir, open at top; B, air chamber; C, stop-cock regulating flow of water into B; R, tee unions made of cork; T, terminal capillary tubes. should be as many feeders as there are dishes to aerate. To set the apparatus into operation, adjust feeders to plates, fill chamber "A" with water and open stop-cock leading to the air chamber. The writer noted on four occasions a large roach drinking water from breeding pans, at the same time devouring larvae. On seven occasions ants were seen reaching after such larv^ as were near the edge of the plates and while under observation, two larvae were successfully withdrawn from the water. These observations suggest strongly the need of protection against these inroads. Keep lookout for 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 Entomological Society of America. [College Park, Md. , etc. ] : Entomological Society of America
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