. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 44 THE PERIODICAL CICADA. wha, Lewis, Marion, Marshall, Mason, Mineral, Monongalia, Nicholas, Ohio, Pleas- ants, Pocahontas, Preston, Putnam, Randolph, Ritchie, Roane, Summers(?), Taylor, Tucker, Tyler, Upshur, Wayne, Webster, Wetzel, Wirt, Wood. Brood Yl—Septendecim—1915. (Fig. 9.) This is an unimportant scattering brood designated as No. 7 by Fitch, XII by Walsh-Riley, and XVII by Riley. It is difficidt to assign any very pointed relationship for this brood, either with pre- ceding or following broods, unless o
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 44 THE PERIODICAL CICADA. wha, Lewis, Marion, Marshall, Mason, Mineral, Monongalia, Nicholas, Ohio, Pleas- ants, Pocahontas, Preston, Putnam, Randolph, Ritchie, Roane, Summers(?), Taylor, Tucker, Tyler, Upshur, Wayne, Webster, Wetzel, Wirt, Wood. Brood Yl—Septendecim—1915. (Fig. 9.) This is an unimportant scattering brood designated as No. 7 by Fitch, XII by Walsh-Riley, and XVII by Riley. It is difficidt to assign any very pointed relationship for this brood, either with pre- ceding or following broods, unless one adopts the suggestion made by Prof. W. E. Castle that it represents a relatively old or played-out brood, and may thus be considered the parent of Broods V and VII,. Fig. S.—Map showing distribution of Brood V, 1914. the former the offshoot by acceleration and the latter by retardation of development. (See pp. 28-29.) As stated elsewhere, however, it is more likely to be an assemblage of swarms of diverse origin. This brood, while not an important one, covers a much wider ter- ritory than any of the other 17-year broods. With the exception, however, of the two extremes of its distribution in the Northwest and the Southeast, respectively, the records are of scattering indi- viduals, in many localities only a few specimens being observed. To illustrate this graphically on the accompanying map (fig. 9), the small dots indicate localities where only a few specimens were observed or captured or a doubtful record and the large dots localities. 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 United States. Bureau of Entomology. Washington : G. P. O.
Size: 1779px × 1405px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubje, booksubjectentomology
