. Elementary entomology. Insects. CHAPTER XIV FLIES, MOSQUITOES, AND MIDGES (DIPTERA) Characteristics. Insects with one pair of wings borne by the mesothorax; the hind-wings represented by a pair of knobbed threads, called halteres; mouth-parts, suctorial;' metamorphosis, complete. Ordinarily all sorts of small insects with membranous wings are indiscriminately called flics, and the term " fly ' has been used to form part of a compound name for insects of several different orders, such as May- fly, sawfly, gallfly, butterfly, etc., but, considered from the entomological stand- point, a fl
. Elementary entomology. Insects. CHAPTER XIV FLIES, MOSQUITOES, AND MIDGES (DIPTERA) Characteristics. Insects with one pair of wings borne by the mesothorax; the hind-wings represented by a pair of knobbed threads, called halteres; mouth-parts, suctorial;' metamorphosis, complete. Ordinarily all sorts of small insects with membranous wings are indiscriminately called flics, and the term " fly ' has been used to form part of a compound name for insects of several different orders, such as May- fly, sawfly, gallfly, butterfly, etc., but, considered from the entomological stand- point, a fly is a two- winged insect of the order Dipt era. With this in mind, it is al- ways easy to distin- guigh ^ ^ nQ other order has a. 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. Boston, New York [etc. ] Ginn and Company
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