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 . «i>irin,t has no trachea?.)In Smynthurus the ovaries consist, accordingto Lubbock, of a single egg-tube. On the un-derside of the abdomen is a sucking tube, slen- Fig, 6i!>. der and forked in Smynthurus, butshort in Podura, etc., by which theanimal adheres to smooth the genus Podiira the body islong, with four-jointed antenna?, andthe flexible spring-tail is short, whilein Desoria, which is found in theAlps, the tail is long. Th


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 . «i>irin,t has no trachea?.)In Smynthurus the ovaries consist, accordingto Lubbock, of a single egg-tube. On the un-derside of the abdomen is a sucking tube, slen- Fig, 6i!>. der and forked in Smynthurus, butshort in Podura, etc., by which theanimal adheres to smooth the genus Podiira the body islong, with four-jointed antenna?, andthe flexible spring-tail is short, whilein Desoria, which is found in theAlps, the tail is long. The genusDegeeria is known by the ovate body,and basal half of the spring equal-ling the fork inlength. A species(Fig. 619) closely ft resembling the European D. nivalis Nicolet,we have found in summer resting on theleaves of the Clematis. The Lepidocyrtus al-binos Nic. (Fig. 620) is a minute pearly whitespecies found in Europe; its scales () are thin and with distinct markings. Smynthurus is short, differing greatly inform from Podura, and bears a striking resemblance to thelarva of Coniopteryx. The body is short, nearly spherical, and40.


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Keywords: ., bookcentury1800, bookdecade1870, bookpublishe, booksubjectinsects