. Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . '^ y\^^&[" ?i&'!i,Sarcopsylla penetrans.—Female distended with eggs, from side and front. Fig. 379. moist quid of tobacco bound over the infested spot usually re- sults in killing the insects, so that the wound can be cleaned and left free to heal. The metamorphosis of the fleas is complete, like that of the true flies. The most obvious division among the true flies, for our purpose, is based upon the character of the an- tennae, or feelers. There are two s
. Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . '^ y\^^&[" ?i&'!i,Sarcopsylla penetrans.—Female distended with eggs, from side and front. Fig. 379. moist quid of tobacco bound over the infested spot usually re- sults in killing the insects, so that the wound can be cleaned and left free to heal. The metamorphosis of the fleas is complete, like that of the true flies. The most obvious division among the true flies, for our purpose, is based upon the character of the an- tennae, or feelers. There are two series, those with long horns or feel- ers much exceeding the head, and those with short horns, having usu- ally only two or three visible seg- ments, one of which is often fur- nished with a specialized bristle, or '' arista.'' The divisions are by no means sharply limited scientifically, but are sufficiently distinct for the species of economic importance. The Tiptdidce, or '' crane-flies,'' is the first family of economic inter- est, and its members are recognizable by their resemblance to exaggerated mosquitoes. They are usually quite large, with many-jointed, slender, thread-like antennae and scarcely shorter maxillary palpi. The legs are abnormally long and ungainly,
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectentomology, bookyear1
