. The moth book [microform] : a popular guide to a knowledge of the moths of North America. Moths; Papillons nocturnes; Papillons nocturnes; Moths. I Tha Uft-HlMeqr and AaaMnjr flf Moiha The fore and hind wings in tome of the primitive formi are not connected with each other in the operation of flight In the Htpialida there is a lobe near the base of the primaries which It. Fio. 13.—Diagram of Winss of a Moth. (After Hampson's "Moths of India," Vol. I., with modificationB.) A. Fore Wing. B. Hind Wing. cm. Costal margin. Costal nervure, vein i« of fore wing, Outer margin. 8
. The moth book [microform] : a popular guide to a knowledge of the moths of North America. Moths; Papillons nocturnes; Papillons nocturnes; Moths. I Tha Uft-HlMeqr and AaaMnjr flf Moiha The fore and hind wings in tome of the primitive formi are not connected with each other in the operation of flight In the Htpialida there is a lobe near the base of the primaries which It. Fio. 13.—Diagram of Winss of a Moth. (After Hampson's "Moths of India," Vol. I., with modificationB.) A. Fore Wing. B. Hind Wing. cm. Costal margin. Costal nervure, vein i« of fore wing, Outer margin. 8 of hind wing. *.»«. Inner margm. s,n. Subcostal nervure. Apex. Median nervure. Inner angle. ia,b,c. Three branches of internal ncrvtire. c. EKscoidal cell. 9, 3,4. Three branches of median nervure. d. Discocellulars. j. I^ower radial. ar. Areole. 6. Upper radial /. Frenulum. 7,8,9,10,11. Five subcostal branches of fore wing. 7d. Subcostal bar. 7. Subcostal nervure of bind wing. known as the jugutn, but it does not appear to serve the practical functions of a yolce. This is illustrated in Figure 13. In the vast majority of cases a connection between the fore and hind wings is made by means of the/rmu/um on the hind wing, which hooks into the retinaculum upon the fore wing, as illustrated in Figure 14. The form of the frenulum is of use in determining the sex of specimens, as in the case of the males it consists of a single curved, hook-like projection, whereas In the case of the females it is split up into a number of bristles. However, in some 16. 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. (William Jacob), 1848-1932. Toronto : W. Briggs
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmoths, bookyear1904
