 | Alpheus Spring Packard - 1870 - 756 Seiten
...interesting insect. The female, when about to lay her eggs, draws her borer out of its sheath, till it stands perpendicularly under the middle of her body, when she plunges it, by repeated wiggling motions, through the bark into the wood. When the hole is made deep enough, she then drops... | |
 | Entomological Society of Ontario - 1872 - 416 Seiten
...her eggs, draws her borer out of its sheath, till it stands perpendicularly under the middle of the body, when she plunges it, by repeated wriggling motions...therein, conducting it to the place by means of the the two furrowed pieces of the sheath. The borer often pierces the bark and wood to the depth of half... | |
 | Alpheus Spring Packard - 1876 - 772 Seiten
...interesting insect. The female, when about to lay her eggs, draws her borer out of its sheath, till it stands perpendicularly under the middle of her body, when she plunges it, by repeated wiggling motions, through the bark into the wood. When the hole is made deep enough, she then drops... | |
 | Ontario. Legislative Assembly - 1877 - 698 Seiten
...her eggs, draws her borer out of its sheath, till it stands perpendicularly under the middle of the body, when she plunges it, by repeated wriggling motions...therein, conducting it to the place by means of the the two furrowed pieces of the sheath. The borer often pierces the bark and wood to the depth of half... | |
 | J. T. Stewart - 1877 - 64 Seiten
...out of its sheath till it stands perpendicularly under the middle of the body ; then she plunges it through the bark into the wood. When the hole is made...enough she then drops an egg therein, conducting it by means of the two furrowed pieces of the sheath. The borer often pierces the wood to the depth of... | |
 | 1881 - 284 Seiten
...them in the same way. The female, when about to lay her eggs, draws her borer out of its sheath, till it stands perpendicularly under the middle of her...when she plunges it, by repeated wriggling motions, throngh the bark into the wood. When the hole is made deep enongh, she then drops an egg therein, condncting... | |
 | Entomological Society of Ontario - 1872 - 492 Seiten
...her eggs, draws her borer out of its sheath, till it stands perpendicularly under the middle of the body, when she plunges it, by repeated wriggling motions...therein, conducting it to the place by means of the the two furrowed pieces of the sheath. The borer often pierces the bark and wood to the depth of half... | |
| |
... the two furrowed pieces of the sheath. The borer often pierces the bark and wood to the depth of half an inch or more, and is sometimes driven in so tightly that the insect cannot draw it out again, but remains fastened to the tree until she dies. 