. Text-book of zoology for junior students. Zoology. ORDERS OF INSECTS. 177 and metamorjihohied maxilhe (fig. 109, B). The wings are four in number, and are covered more or less completely with moditied hairs or scales, which are pretty objects under the microscope, and from which the wings derive their beautiful colours. The larvte of the Lcpidoptera (fig. 123) are generally known as caterpillars. They. Fig. 123.—Large Calil)agii Wliite Butterfly (Ponila hra&f^ictr), a Lar\ a or catcrjiillar ; h Pupa or clirysalis ; c Imago or perfect insect. are worm-like, provided with masticatory organ
. Text-book of zoology for junior students. Zoology. ORDERS OF INSECTS. 177 and metamorjihohied maxilhe (fig. 109, B). The wings are four in number, and are covered more or less completely with moditied hairs or scales, which are pretty objects under the microscope, and from which the wings derive their beautiful colours. The larvte of the Lcpidoptera (fig. 123) are generally known as caterpillars. They. Fig. 123.—Large Calil)agii Wliite Butterfly (Ponila hra&f^ictr), a Lar\ a or catcrjiillar ; h Pupa or clirysalis ; c Imago or perfect insect. are worm-like, provided with masticatory organs fitted for dividing solid substances, possessing false legs ("prolegs") in addition to the three jjairs proper to the adult, and having attached to the under lip a tubular organ or spinneret, by wliich .silken threads can be manufactured. The Butterflies or Diurnal Lepidoptera are characterised hy being- active during the daj'time, by keeping their wings mostly erect when at rest (fig. 123, c')> by generally having club-shaped antenn;e, and by having a chrysalis (6), which is almost always naked and angular, and is generally attached to some solid object b)' silken threads variously disposed. The Moths (fig. 124) are mostly active during the niglit-time, when they are said to be " ; Many of them, however, are " crepuscular "—that is to say, they are active during the hours of twilight; and a few come out in broad daylight and in the brightest sunshine. The pup;e or chrysalides are never angular, as in the case of the Butterflies. In the Crepuscular J^epidoptvra, including those forms which are active dnring the twilight, the antennte are usuallj' fusiform, or grow gradually thicker from the base to the apex ; the wings are. 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 orig
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectzoology, bookyear1885
