Insect life; an introduction to nature-study and a guide for teachers, students, and others interested in out-of-door life . the com-mon hairy caterpillars found running over the surfaceof the ground will feed on grass and many otherplants, but other caterpillars will starve if not fed ontheir proper food plant. OBSERVATION OF COMPLETE ME rAMORlIIOSIS. ^g NoTK.—Among the more available kinds of caterpillars for use inthis lesson are the following : Ihc common green cabl)age-worms ; thegreen worm, ringed with black and spotted with yellow, that eats theleaves of caraway ; and the large yellow a
Insect life; an introduction to nature-study and a guide for teachers, students, and others interested in out-of-door life . the com-mon hairy caterpillars found running over the surfaceof the ground will feed on grass and many otherplants, but other caterpillars will starve if not fed ontheir proper food plant. OBSERVATION OF COMPLETE ME rAMORlIIOSIS. ^g NoTK.—Among the more available kinds of caterpillars for use inthis lesson are the following : Ihc common green cabl)age-worms ; thegreen worm, ringed with black and spotted with yellow, that eats theleaves of caraway ; and the large yellow and black one found on milk-weed. The transformations of each of these can be observed in a com-paratively short time if the study begins early enough in the autumn broods of the first two pass the winter in the pupa state. 3. Begin a series of notes on each kind of cater-pillar under observation, giving each a number andnumbering the notes to correspond. (See Part H,Chapter III.) Begin each note with the date onwhich it was made. Record everything that youobserve regarding the habits and transformations of. Fig. 18.—LarvcT, and pupa of a butterfly. the insects. Try to observe the molting of the in-sects and each of the transformations, 4. All caterpillars hatch from eggs. If you suc-ceed in rearing adult insects and will keep some ofthem caged for a time you may be able to get eggs. 40 INSECT LIFE. But many insects will not lay in confinement. Theyare more apt to lay in confinement if caged with agrowing- food plant of the larva. 5. Caterpillars and the corresponding stage ofother insects with a complete metamorphosis are calledlarvce. The singular form of this word is larva. 6. When a larva is full grown it molts its skinand appears in a very different form. This thirdstage (the t,^^ being the first and the larva the sec-ond) is called the pupa. The plural of pupa is piip( Fig. 18 there are represented two larvae on theupper edge of a fragment of a leaf and
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectentomol, bookyear1901
