. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. BIOLOGY OF SOME COMMON LAMPYRID/E. 65 cells, when held against the light, allowed small rays to pass through, giving evidence of their slight porous nature. The pupal-cell, however, makes a sufficiently well-constructed cham- ber to protect the pupa from drying or other injury. The reason that the larva usually seeks a damp locality previous to pupation is probably for the purpose of choosing a place where excessive drought will not be liable to affect it during trans- formation. By the time the pupal-cell is constructed the
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. BIOLOGY OF SOME COMMON LAMPYRID/E. 65 cells, when held against the light, allowed small rays to pass through, giving evidence of their slight porous nature. The pupal-cell, however, makes a sufficiently well-constructed cham- ber to protect the pupa from drying or other injury. The reason that the larva usually seeks a damp locality previous to pupation is probably for the purpose of choosing a place where excessive drought will not be liable to affect it during trans- formation. By the time the pupal-cell is constructed the larva becomes very sluggish, its body becomes distended and in from one to three days the cuticula splits down the anterior half of the back, and the pupa gradually comes forth. From this time,. FIG. 15. Photurus pennsylvanica pupal chamber completed, internal view with pupa in position. throughout the entire pupal stage, it lies on its dorsal side within its pupal-cell, and is largely supported by the long lateral setae, which project from each of the thoracic and abdominal tergites (Fig- 15)- The straightened out pupa measures about twelve mm. and in the arcuate position ten mm. The body is somewhat de- pressed, with the appendages and wing-pads rather long, and with the lateral tergites drawn out at considerable length. At the end of each of these appendages is a mass of coarse bristles. The color of the pupa is yellowish white. It is quite active and can move about considerably within its pupal-chamber. Throughout the entire pupal period the light-organs, that were functional in the larva, can be distinctly seen to emit light,. 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952;
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
