. Annals of applied biology. Biology, Economic; Biochemistry. W. Ritchie 193 Egg-laying being completed the egg-tubes are now empty or con- tracted as shown in Fig. 15. The oviduct also is contracted while the outline of the receptaculum seminis enclosed in the anterior end of the bursa copulatrix is now traceable. In the case of females which had completed egg-laying and had fed for a period of about four months prior to a possible second egg-laying, I found that, with the exception of a slight increase in the size of the terminal or nutritive chamber, the parts of their reproductive organs h
. Annals of applied biology. Biology, Economic; Biochemistry. W. Ritchie 193 Egg-laying being completed the egg-tubes are now empty or con- tracted as shown in Fig. 15. The oviduct also is contracted while the outline of the receptaculum seminis enclosed in the anterior end of the bursa copulatrix is now traceable. In the case of females which had completed egg-laying and had fed for a period of about four months prior to a possible second egg-laying, I found that, with the exception of a slight increase in the size of the terminal or nutritive chamber, the parts of their reproductive organs had undergone little further change in appearance. In all my dissections of the reproductive organs of females both in the egg-laying and after egg-laying stages I failed to notice any trace of the so-called corpora lutea, or heap of degenerate yellowish tissue, which in many insects frequently collects at the bases of the egg- chambers as soon as eggs have passed into the Fig. 14. Reproductive organs of female C. ahietis egg-laying (greatly magnified). In the following columns I emphasize the significant characters which appeared to be most useful in determining the unripeness and ripeness of the female reproductive 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 Association of Applied Biologists; Association of Economic Biologists. [Wellesbourne, Warwick, etc. ] Association of Applied Biologists [etc. ]
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbiochem, bookyear1919
