. Elementary entomology. Entomology. CHAPTER VII BRISTLETAILS AND SPRINGTAILS (APTERA) Characteristics. Wingless insects which have no metamorphosis. Mandi- bles and maxillae retracted within the head, but used for bttfeg-^Tid chewing soft substances. True compound eyes rarely present; a group of simple eyes on each side of head in some genera. Abdomen sometimes furnished with rudimentary jointed appendages. This is a relatively unimportant order from the economic stand- point, but is of interest from the fact that it includes the most. Fig. 87. Silver fish-moth [Lepisma sacchariiia). (Enlarge
. Elementary entomology. Entomology. CHAPTER VII BRISTLETAILS AND SPRINGTAILS (APTERA) Characteristics. Wingless insects which have no metamorphosis. Mandi- bles and maxillae retracted within the head, but used for bttfeg-^Tid chewing soft substances. True compound eyes rarely present; a group of simple eyes on each side of head in some genera. Abdomen sometimes furnished with rudimentary jointed appendages. This is a relatively unimportant order from the economic stand- point, but is of interest from the fact that it includes the most. Fig. 87. Silver fish-moth [Lepisma sacchariiia). (Enlarged) A household nuisance and a good example of the bristletails. (After Marlatt, United .States Department of Agriculture) primitive insects now in existence. The name Aptera is given on account of the entire absence of wings, in consequence of which 73. 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 Sanderson, Dwight, 1878-1944; Jackson, C. F. (Cicero Floyd), b. 1882; Metcalf Collection (North Carolina State University). NCRS. Boston, Ginn
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Keywords: ., bookcentury1900, bookdecade1, booksubjectentomology, bookyear1912
