. Circular. Insects. 6 scribed this larger form as a new species, giving it the name During the years 1884 and 1885, however, the senior author reared Riley's Isosoma tritici from straws in which only his /. grande had oviposited and his /. grande from plants to which only /. tritici had access. -As this last name had been applied by Doctor Fitch many years earlier to an- other insect, the jointworm, the name grande must necessarily be given to both forms. BUREAU NOTES AND OBSERVA- TIONS BY ASSISTANTS. Strangely enough, one of the earliest reports of this species came from Mr. J. A. S


. Circular. Insects. 6 scribed this larger form as a new species, giving it the name During the years 1884 and 1885, however, the senior author reared Riley's Isosoma tritici from straws in which only his /. grande had oviposited and his /. grande from plants to which only /. tritici had access. -As this last name had been applied by Doctor Fitch many years earlier to an- other insect, the jointworm, the name grande must necessarily be given to both forms. BUREAU NOTES AND OBSERVA- TIONS BY ASSISTANTS. Strangely enough, one of the earliest reports of this species came from Mr. J. A. Starner, Dayton, Columbia County, Wash. Infested straws containing a few larvae, but mostly pupse, were received September 16, 1882, showing that even at that early date it was sufficiently abundant to attract the attention of farm- ers. Mr. D. W. Coquillett found it at Anaheim and Atwater, Cal., in 1885, while Mr. Albert Koe- bele found it during the same year at Folsom, Cal. It was also sent to the Department by Mr. J. F. Donkin, from Grayson, Cal., during the same year. In 1885 Prof. F. H. Snow reported it as doing serious injury in McPherson, Morris, Osborne, Ottawa, and Saline counties, Kans., and mentioned it as a new pest,6 and in 1891 it was prevalent in central and west- ern In 1886 Mr. Coquillett found it at Los Angeles, Cal. During August, 1890, infested straws from Washington State were received at the Department from Moses Bull, Pullman; J. W. Jessup, Rosalia; G. W. Dunn, Tekoa; and Milton Evans, Walla Fig. 7.—Isosoma grande: Pupa of summer form in young wheat. (Original.) <*Bul. Brooklyn Ent. Soc, 1884, pp. 11-12. b Monthly Rep. Kans. Bd. Agr., June, 1885. cLoc. cit., Feb., 1892. [Cir. ioc]. 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


Size: 1044px × 2393px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookdecade1890, bookpublishe, booksubjectinsects