. Insect pests of farm, garden and orchard . ^ give such a brief view of their habits thatfewer may be killed through ignorance concerning their trueworth,. BENEFICIAL INSECTS, PREDACEOUS AND PARASITIC 13 Syrphus-flies Besides the little beetles described al)0\e there is a familyof flies, the Syrphidoe, many of whose larva- feed upon plant-lice. This family is a very large on(\ and thus the habits of itstlifferent members vary considerably. One of them, the drone-fly, so closel} reseml^les a hone}-bee as to be almost indistin-guishable from it. The larva ofthis fly (Eristalis tenax) is oneof t
. Insect pests of farm, garden and orchard . ^ give such a brief view of their habits thatfewer may be killed through ignorance concerning their trueworth,. BENEFICIAL INSECTS, PREDACEOUS AND PARASITIC 13 Syrphus-flies Besides the little beetles described al)0\e there is a familyof flies, the Syrphidoe, many of whose larva- feed upon plant-lice. This family is a very large on(\ and thus the habits of itstlifferent members vary considerably. One of them, the drone-fly, so closel} reseml^les a hone}-bee as to be almost indistin-guishable from it. The larva ofthis fly (Eristalis tenax) is oneof the common rat-tailed mag-gots which are found in putridmatter. It is thought .that the old bugonia superstition of ^^^^ ^ c ;., •; ?? i iiyrp/nis ribefiit; enlarged. the ancients that bees came from maggots in dead aninmals, etc., was due to the confusion of this fly with honey-bee. In another group of the family, the adult flies of which alsoquite closely resemble bees, the larvas are parasitic in the nestsof honey- and bumble-bees, feeding upon their larVcC. But the larvse of possibly the most typical portion of thefami
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1915
