. The museum of natural history, with introductory essay on the natural history of the primeval world : being a popular account of the structure, habits, and classification of the various departments of the animal kingdom, quadrupeds, birds, reptiles, fishes, shells, and insects, including the insects destructive to agriculture . In the eastern part of the worldwe well kuow that mosquitoes are a plague by day, anda terror by night. Other species, belonging to thefamily TipuUda, are well known for the loss occasionedby their attacks on grain crops. The Cccidomyia tritici(fig. 171) deposits its
. The museum of natural history, with introductory essay on the natural history of the primeval world : being a popular account of the structure, habits, and classification of the various departments of the animal kingdom, quadrupeds, birds, reptiles, fishes, shells, and insects, including the insects destructive to agriculture . In the eastern part of the worldwe well kuow that mosquitoes are a plague by day, anda terror by night. Other species, belonging to thefamily TipuUda, are well known for the loss occasionedby their attacks on grain crops. The Cccidomyia tritici(fig. 171) deposits its eggs in the corolla of the youngwheat plant, in which the larvae are hatched, and bytheir ravages frequently cause a considerable loss, if not an entire destruction of the crop. In North Americathe ravages of the grain crops at times spread to analarming extent. In Fitchs Report of the noxiousinsects of the state of New York are detailed accountsof their ravages; the larvae of several genera are equallydestructive. Species of the genus Chloropa have longbeen known seriously to injure crops. Linnaeus men-tions one, Chlorops Frit, which infests the heads ofbarley, causing an annual loss of not less than half amillion of dollars annually in Sweden. The species ofthe genus Chlorops have, as the name indicates, green a Cecidomyia tritici. SThe same, natural size. cTlie cocoon of tlie fly. d Antenna of the e An ear of wheat attacked by grain of wheat attacked by it. g The American Chinch—Bug. eyes, and may be seen frequently on the young headsof grain crops in the spring ; but we must refer thereader to the work above alluded to, for a detailed accountof the enormous loss occasioned to the farmer throughthe destructive agency of these minute depredators. No destructive insect belonging to the family Dipterais better known than the species popularly called Daddy-long-legs {Tipula oleracca). This species, and some ofits congeners, occasionally prove by their n
Size: 1248px × 2002px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlibraryofcongressformerownerdsi, bookpublisherlondon
