Guide to the study of insects and a treatise on those injurious and beneficial to crops, for the use of colleges, farm-schools, and agriculturists . - anumber of radiating spinules. Its larvais undoubtedly aquatic, like that of Eris-talis. Mr. Sanborn has also reared from the pupa state , which probablj^ lives in the soil aboutdecaying Inilbs, as the puparium has no respira-tory tube, but instead a \ery short sessile trun-cated projection, scarcely as long ay It is thick,with a pair of stigmata in the end ; the body isC3dindrical and rounded alike at each end, with a slight con- ries
Guide to the study of insects and a treatise on those injurious and beneficial to crops, for the use of colleges, farm-schools, and agriculturists . - anumber of radiating spinules. Its larvais undoubtedly aquatic, like that of Eris-talis. Mr. Sanborn has also reared from the pupa state , which probablj^ lives in the soil aboutdecaying Inilbs, as the puparium has no respira-tory tube, but instead a \ery short sessile trun-cated projection, scarcely as long ay It is thick,with a pair of stigmata in the end ; the body isC3dindrical and rounded alike at each end, with a slight con- ries perlcrtly vivificil; it is ji true artcM-ial lilood. These oapillavies are not incommunication with the venous fapillaries; tlie blood is taken u|) hy tlie tissues,it nourishes them and Hows into the venous lacuna;, and tlie lacunar ciirrentacany it to the dorsal vessel. Aitnules den Sciences Xuturelles,
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Keywords: ., bookcentury1800, bookdecade1880, bookpublishe, booksubjectinsects
