. Adventures with animals and plants. Biology. PROBLEM I. The Kinds oj Aiiiviah oj the Earth 43. Fig. 52 Silkworm moth. Adult (top), e^iipty cocoons (center), larva (bottom). The adults lay eggs ivbicb batch into larvae. Each larva spins a cocoon of 2400 to ^600 feet of silk fiber. Do you know what the larvae eat and how silk thread is made from the cocoons? (American MUSEUM OF NATURAL HISTORY) Insects with scaly wings. This group includes moths and butterflies. These insects have large wings covered with tiny scales. The scales are often brightly colored and in some species are arranged in ga
. Adventures with animals and plants. Biology. PROBLEM I. The Kinds oj Aiiiviah oj the Earth 43. Fig. 52 Silkworm moth. Adult (top), e^iipty cocoons (center), larva (bottom). The adults lay eggs ivbicb batch into larvae. Each larva spins a cocoon of 2400 to ^600 feet of silk fiber. Do you know what the larvae eat and how silk thread is made from the cocoons? (American MUSEUM OF NATURAL HISTORY) Insects with scaly wings. This group includes moths and butterflies. These insects have large wings covered with tiny scales. The scales are often brightly colored and in some species are arranged in gay patterns. They are loosely at- tached, as you know if you have ever handled a butterfly or moth. If you use a microscope you can see that the "powder" that comes ofi" the wing con- sists of these scales. The bodies of moths have much more "hair" on them than have those of butterflies; their bodies Fig. 54 Coiled sucking tube of a moth, (gen- eral BIOLOGICAL supply) are also heavier and often more clumsy. Butterflies and moths suck nectar (a sugary liquid) from flowers. The mouth parts form a tube, sometimes a very long tube, w hich is kept coiled up when not in use as illustrated in Figure 54. When extended some tubes Mill reach the nectar bags at the bottom of deep flowers. The feelers or antennae of moths are feather-like, while those of the butterfly are smooth and sometimes knobbed at the tip. If you watch moths and butterflies when they alight you will detect yet. 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 Kroeber, Elsbeth, 1882-; Wolff, Walter Harold, 1901-. Boston : D. C. Heath
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