Tro Butterflies/moth pdf epub mobi txt 电子书 下载 2025


Tro Butterflies/moth

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      发表于2025-02-26

      Tro Butterflies/moth epub 下载 mobi 下载 pdf 下载 txt 电子书 下载 2025

      Tro Butterflies/moth epub 下载 mobi 下载 pdf 下载 txt 电子书 下载 2025

      Tro Butterflies/moth pdf epub mobi txt 电子书 下载 2025



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      Have you ever spent a bright summer s morning watching butterflies with a friend? Many

      people have developed a keen interest in nature by observing the live irsects. Why not

      construct a wire cage which allows plenty of ventilation, and capture a caterpillar:or two? Be sure

      to determine what your new captive feeds on, and have an ample supply available. Most moth and

      butterfly larvae (the wormlike insect which hatches from the egg) have finickY appetites and will

      reject anything that they aren t adapted to eat. So you can t get by on lettuce and grass. If you re

      lucky, your caterpillar will thrive and form a chrysalis, if it s a butterfly, or a cocoon, if it s a moth.

      Finally, a beautiful adult will emerge. Some species are temperature-sensitive, and must be left

      outdoors in order to go through the necessary cycles; so do your homework, and determine what

      your larvae needs to fulfill its lifecycle. When the adult has emerged, let it go back to nature.

      Here is an array of North American butterflies you might encounter. The comma angle wing

      (Polygonia comma), left, is one of a group named for the sharply angled wing edges. The

      undersides of the wings are camouflaged, resembling dead leaves, but the tops are brightly

      colored, with a background of orange, blending into black margins which contain a line of small

      white spots. The 4.5 to 5 cm. (about two inches) adult male has an aggressive attitude toward

      other males, and will vigorously defend his territory. Common in the moist woodland areas east of

      the Rocky Mountains, the adult form hibernates, and in spring lays chains of pale green eggs

      suspended from the undersides of leaves. The larvae are dark brown with white spines, and

      feed--often destructively--on hops, nettles, and elm.

      The buckeye (]unonia coenia), top right, is gaudily colored, and can be found from southern

      Canada to Colombia. Its background is light brown, with eight blue-centered, orange-rimmed

      eyespots. The hindwing margins are yellow, with bright orange inner margins, and large irregular

      yellow spots surrounding the forewing eyespots. Two diagonal orange spots flank either side of

      the head. The larvae live on plantain, snapdragon, and monkey flower.

      Some of the first butterflies to appear in the spring are the pink-edged sulfurs (Colias

      interior), middle right. It has bright yellow wings, delicately edged in pink, with pink-edged silver

      spots on the undersides of the wings. The butter-yellow hue of a European sulfur species may

      have given rise to the name "butterfly," although another theory holds that "butterfly" is a

      reversal of "flutter by". Primarily a northern species, the green larvae feed on several types of

      blueberries. Another sulfur, the southern dog-face (Colias cesonia), bottom right, is strikingly

      marked in a vivfd yellow and black, with two tiny ochre spots on each hindwing. The markings on

      the forewings form a sort of dog-face in profile. The larvae feed on clover and other legumes, and

      hibernate as pupae.

      The lovely mourning cloak (Nymphalis antiopa), bottom, is one of the "tortoise shell

      butterflies" resembling the angle wings. Deep purplish brown with yellow margins, it has blue

      dots within the dark inner wing margins, and yellow spots along the leading edges of the

      forewings. The large adults (7 to 8.25 cm. ) hibernate and make .their appearance in early spring

      throughout their extensive northern hemispheric range. The da~eggs are laid on elm, willow, or

      poplar trees, and the spiny larvae have bright red dots along the back.

      Tro Butterflies/moth 下载 mobi epub pdf txt 电子书

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