A preliminary introduction to the study of entomologyTogether with a chapter on remedies, or methods that can be used in fighting injurious insects; insect enemies of the apple tree and its fruit, and the insect enemies of small grains . e Experiment Station and thestate societies. One of them isillustrated herewith (see Fig. 179).The Army-worm and allies also arerepresentatives of the family. The family Geometric^ con-tains certain moths, the larvae ofwhich are known popularly as measuring-worms, on account oftheir peculiar looping Canker-worms and Span-worms are also typical e
A preliminary introduction to the study of entomologyTogether with a chapter on remedies, or methods that can be used in fighting injurious insects; insect enemies of the apple tree and its fruit, and the insect enemies of small grains . e Experiment Station and thestate societies. One of them isillustrated herewith (see Fig. 179).The Army-worm and allies also arerepresentatives of the family. The family Geometric^ con-tains certain moths, the larvae ofwhich are known popularly as measuring-worms, on account oftheir peculiar looping Canker-worms and Span-worms are also typical examplesof the group. The ToRTRiciD^ or leaf-roll-ers is also quite a large familyof moths that is of considerableFio. V! cbenopodii: a. b, larva; economic importance here in thec, pupa; d. moth; e. wing of same-eniarKBd. state as well as elsewhere. The —[After Riley.] TiNEiDJS and Pyralid^ should also be represented in a work of thiskind ; but I have already taken up too much of the space allotted to mefor this paper. ORDER XV. HYMENOPTERA.—(Sees, Wasps, Ants, Parasitesand Saw-flies.) The insects which comprise this order can be distinguished at oncefrom all others by their four membranous wings which are furnished. 94 A PRELIMINARY INTRODUCTION with comparatively few veins; their well developed mouth-parts, theirhard, compact bodies, and their sharp stings and ovipositors. The order,as a whole, is one of great interest both to the systematist and to the economic entomologist, andshould be given much moreattention than it is possibleto give it here. The seem-ing intelligence exhibited bymany of its members in theirlife-habits might be made thetheme for an extended paperalone ; while the great varia-tion in structure that is to beobserved among the formsfound even in the species ofa single family could be madeto supply very interesting reading. While the order contains avast num-ber of species that are of moderately large size, and which are more or
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectinsects, bookyear1894
