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 . ffi 196 The genus Rhyssa contains our largest species, and frequentthe holes of boring insects in the trunks of trees, inserting its remarkably long ovipositorin the body of the larva-deeply embedded in thetrunk of the tree. Harrisstates that Wn/ssa (Pimpla)(itrntii and Immtnr (Fig. ) of Fabricius, mayfrequently be seen thrustingtheir slender borers, measur-ing from three to four in-ches in length, into thetrunks of trees in
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 . ffi 196 The genus Rhyssa contains our largest species, and frequentthe holes of boring insects in the trunks of trees, inserting its remarkably long ovipositorin the body of the larva-deeply embedded in thetrunk of the tree. Harrisstates that Wn/ssa (Pimpla)(itrntii and Immtnr (Fig. ) of Fabricius, mayfrequently be seen thrustingtheir slender borers, measur-ing from three to four in-ches in length, into thetrunks of trees inhabitedby the grubs of the Tiv-mex, and by other wood-FS- -• eating insects; and, like the female Tremex, they sometimes become fastened to thetrees, and die without being able to draw their borers outagain. The abdomen of the male is very slender. Pimpla has the ovipositor half as long as the abdomen. Cresson is a parasite on Clisiocampa. The genus Troy us leads to Ichneumon. The antenmu areshorter than the body; the abdomen is slightly petiolate, fusi-form, and the second subcostal cellis quadrangular. Troyns (sBrulle is tawny red, and is a p
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Keywords: ., bookcentury1800, bookdecade1870, bookpublishe, booksubjectinsects
