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 . ^ rises into its new world oflight and sunshine. In Agrion and its allies (Agrionina) the antennae are four-jointed, the e^-es are small compared with those of Libellula,and distinct; the wings are equal, while the abdomen is cjdin-drical and long and slender. In Calox)teryx the wings arevery broad and densely reticulated ; the pterostigma is absentin the males, that of the females irregular and areolate ; the. Fig. 585. LIBELLULID^. 603

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Keywords: ., bookcentury1800, bookdecade1880, bookpublishe, booksubjectinsects