. Economic entomology. Beneficial insects; Insect pests; Thysanura. 242 ARACHNOIDEA. CASE passes through that form in its ; The rationale suggested for such an unusual phenomenon is, that Hypopus is a stage with. Sketch of Tyrogflyphus mycophagus emerging from Hypopus. Copied from Megnin's figure. a harder skin in the development of Tyroglyphus, specially provided for it to compensate for its softness and aptness to be dried up on the failure of moisture which, but for this provision, might extinguish the race. The above is, we think, a statement of the facts and inferences rela
. Economic entomology. Beneficial insects; Insect pests; Thysanura. 242 ARACHNOIDEA. CASE passes through that form in its ; The rationale suggested for such an unusual phenomenon is, that Hypopus is a stage with. Sketch of Tyrogflyphus mycophagus emerging from Hypopus. Copied from Megnin's figure. a harder skin in the development of Tyroglyphus, specially provided for it to compensate for its softness and aptness to be dried up on the failure of moisture which, but for this provision, might extinguish the race. The above is, we think, a statement of the facts and inferences relating to this puzzling phenomenon, and the reader must form his own judgment upon them. We shall only point out how far M. Megnin's observations really go, where they seem to correspond or differ from those of Claparede and other observers, and what blanks still remain to be filled up before we have a complete knowledge of the life-history of Hypopus and Tyro- glyphus. In the first place we have mature Tyroglyphi, male and female, the latter of which lay 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 Murray, Andrew, 1812-1878. [London] Chapman and Hall
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