Adult specimen preparation generally softened pin plug, wings or whole attitude, plus sign four steps. Softened slightly longer time to kill insects because of hard brittle hair, before production by softening; just dead adults, may not be softened by immediately making. The method is: the dry specimen back into the soft cylinder (commonly dryer) on the middle of the porous glass, home to wash sand Bottom real insect specimens, add water, swept over the sand, a small amount of carbolic acid or water drops formaldehyde solution to prevent mildew. After a few days, the specimen can be softened. Individual small insects, covered with clean sand can be placed in a glass dish (such as a petri dish) Teaching insect specimens, as well as damp cloth layer, wear glass pan lid or cover softened. Slide specimens produced tiny insects, parasites and local fine structure, enclosed slide, for magnification observation. Fengpian plastic commonly used are: ① Canada gum: only diluted with xylene. When the producer, the material removed from the storage solution, subject to alcohol (concentration increased by 100%) completely dehydrated, and then removing the alcohol and xylene transparent before they can move to the slides plus Canada glue mounted. Such slide specimens can be permanently stored. ② gum arabic mixture mounted. Suitable for smaller overall producer insects. Arabic powder 30 g, 50 ml of distilled water, glycerol 20 ml amber insect specimens, chloral hydrate, 200 restraint glue. When formulated powder first to add distilled water, stirring, until heated water bath powder is completely dissolved, then stir slowly add chloral hydrate, and finally add glycerin stirring hot pour colored flasks, placed in 60 ℃ thermostatic box with glass wool filter after 24 hours, you can not see the light removed and stored at the environment. Teaching insect specimens | insect specimens | voyage teaching provided by Xinxiang City Teaching Equipment Co. voyage. Xinxiang City voyage Teaching Equipment Co. (www.xxyuanhang.cn) strong, credible, in Xinxiang specimen model industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the voyage into the brilliant teaching and you work for a better future!