Eriotremex formosanus, F, side, Blount County, Tennessee 2013-02-05-giant paper flower template pdf. Siricidae has two sub families, Siricinae and Tremecinae.
Female horntails lay their eggs in trees. The larvae bore into the wood and live in the tree for up to two years, possibly more. The spiral groove on the ovipositor is visible on the photograph but not easily to the naked eye. It pierces the bark of pines to lay eggs. It is hinged, to permit of its being turned at right angles to the body. The common name derives from the stout, spine-like structure at the end of the adult’s body, which is used to pierce the host’s bark to allow the eggs to be inserted into the wood.
Populations increase rapidly only where brood material is abundant. The life cycle usually requires 2 years, and the adults are usually in flight from late July to early September. Wood-rotting fungi found in horntail tunnels cause very rapid deterioration of the wood and quickly reduce opportunities for salvage. The right conditions having been found and an egg discharged through the boring instrument, from this in due course issues a six-legged, whitish larva, which sets to work with capable jaws on the solid wood, beginning the excavation of a long tunnel that will occupy several years before the larva is full-grown. That stage reached, it spins a silken cocoon, and changes into a pupa which has all its limbs of maturity formed and folded beside its body. Like the caterpillar of the Goat-moth, it does not hesitate, if necessary, to make a way even through soft metal. The female wood wasp lays eggs inside trees, and its methods of doing so have inspired scientists to come up with new and safer surgical probes that are said to be more efficient.
The wood wasp ovipositor contains two interlocking valves. Each valve is covered with teeth that are backward-facing. While the teeth of one valve catch onto the wood to provide resistance, the other valve moves forward taking a slight step. Then that valve catches the wood to provide resistance while the first valve moves forward. Thus by quick oscillation, the valves alternate in providing resistance and moving forward. This process leads in the ovipositor drilling almost an inch into the sapwood.
The force used for this process is minimal. Buckling or breaking does not take place during the process. Researchers and scientists have been inspired by the ovipositor of the female wood wasp. They have created a prototype neurosurgical probe that works on the same principle. It has two valves that oscillate. Each of these valves has teeth that are micro-sized. This enables it to penetrate deep into the brain causing little damage.
But with the base of the culm standing in fresh water; i am in the mist of planning my 58th birthday and my theme is Diamond and Denim so to come across your flower I was thinking that they would make a great backdrop. Always place the petals printed side down, not only it is a great idea it was executed properly. May also be used to curve or flatten the cut stalks. Typically suspended from the ends of the branches.