. The moth book [microform] : a popular guide to a knowledge of the moths of North America. Moths; Papillons nocturnes; Papillons nocturnes; Moths. Tk> Ub-HiatDcy ud Aauony e( HMt* of the legs. It will be well for the student to thoroufhly famil- tariie hinueir with the location and names of the different pattt bidicited in this and the following figure. II-. Fra. II.âLegs of a Moth. (Prom â â¢Packard's Guide," p. 131.) 1. Fore Leo. 2. Middle LEa }. Hind Leo. Coxa. Trochanter. Femur. Tibia. Tarsus. P sp. I. ip. a. 'P-3- Unijues. Pnlvillui. Single anterior spur. Paired medial spurs. Two
. The moth book [microform] : a popular guide to a knowledge of the moths of North America. Moths; Papillons nocturnes; Papillons nocturnes; Moths. Tk> Ub-HiatDcy ud Aauony e( HMt* of the legs. It will be well for the student to thoroufhly famil- tariie hinueir with the location and names of the different pattt bidicited in this and the following figure. II-. Fra. II.âLegs of a Moth. (Prom â â¢Packard's Guide," p. 131.) 1. Fore Leo. 2. Middle LEa }. Hind Leo. Coxa. Trochanter. Femur. Tibia. Tarsus. P sp. I. ip. a. 'P-3- Unijues. Pnlvillui. Single anterior spur. Paired medial spurs. Two pain of posterior spurs. The structure of the wings of moths is essentially like that of butterflies, and consists of a framework of hollow tubes which su;jport a double membrane which bears upon its surfaces the scales, which overlap each other like the tiles upon the roof of a house. The tubes, which are known as veins, communicate with the respiratory system and are highly pneumatic. They are also connected with the circulatory system, and are furnished, at least through their basal portions, with nerves. The fore wing has normally twelve veins. The hind wing has also in primitive forms, as the Hepialida, twelve veins, but in the vast majority of cases this number has been reduced, and eight veins is the number which is found in the majority of cases in the hind wing. The accompanying figures, with their expla- nations, will suffice far better than any mere verbal explanation to explain the structure of the wings of moths. (See Figures IS and ij.) The relative position of vein five in reUtion to the median or subcostal systems has been mLch utilized in recent years by »ystematists in their classification of the various groups. 15 - m. 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 Holland, W. J.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmoths, bookyear1904
