. An introduction to zoology, with directions for practical work (invertebrates). CHAPTEE XV INSECTA (continued) Order I.: Lepidoptera (Butterflies and Moths) General '^^'"^ Lepidoptera, or Scale-winged Insects, are char- Character- acterised, as their name infers, by the presence istics. The of scales which cover the surface of the two pairs Wings. p£ large membranous wings. These scales are very minute, and vary much in form and colour; to them is due the typical marking and beautiful colouring of different butterflies and moths (see Fig. 150). The The mouth also of the Lepidopteran ins
. An introduction to zoology, with directions for practical work (invertebrates). CHAPTEE XV INSECTA (continued) Order I.: Lepidoptera (Butterflies and Moths) General '^^'"^ Lepidoptera, or Scale-winged Insects, are char- Character- acterised, as their name infers, by the presence istics. The of scales which cover the surface of the two pairs Wings. p£ large membranous wings. These scales are very minute, and vary much in form and colour; to them is due the typical marking and beautiful colouring of different butterflies and moths (see Fig. 150). The The mouth also of the Lepidopteran insect is Proboscis, characteristic. The mouth-parts are usually elon- gated into a long tubular proboscis, which, when not in use, is kept coiled up in a vertical spiral below the head (see Fig. 143). This proboscis appears to be formed, not of the upper or lower lips (labrum and labium) as in Diptera (p. 340), but of the two soft jaws or maxillae, which are long and grooved and yiq. 143.—Head of the Large held together to form a tube. The White Butterfly (Piens other mouth-parts are small and ^"^sicae). inconspicuous, except for the sensory ^' ''''fX^::Xt'"'''' palps of the labium, which are large, and usually held curving upwards in front of the head (see Fig. 143, p). The tubular proboscis is used in sucking up the nectar of flowers on which the insect feeds. In some cases its length is remarkable when compared to the size of the insect. In certain Hawk-moths it is as much as 10 inches long. 213. 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 Lulham, Rosalie Blanche Jermaine. London, Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherlondo, bookyear1913
