Czy można zbierać chrząszcze do alkoholu ?

Metody preparowania, usypiania, problemy, sposoby.
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Grzegorz Banasiak
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Czy można zbierać chrząszcze do alkoholu ?

Post autor: Grzegorz Banasiak »

Potrzebuję pilnej odpowiedzi. Straciłem część octanu i muszę oszczędzać. Pytanie jak w temacie. Czy można zbierać chrząszcze do alkoholu ?
Poszukałbym na forum ale kiepsko tu działa internet...
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Re: Czy można zbierać chrząszcze do alkoholu ?

Post autor: Miłosz Mazur »

Generalnie tak.
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Re: Czy można zbierać chrząszcze do alkoholu ?

Post autor: Jacek Kurzawa »

TAK! Dodaj do niego, o ile masz tam gdzieś, ocet. Najlepiej zrobić tak: przekąpać chrząszcze w wodzie z octem (50/50) (ok. 2 godziny) a potem do alkoholu 40% z octem (może być nawet pól na pół ale dałbym 1/3 octu i 2/3 wódki). Ocet rozmiękcza tkanki i zapobiega psuciu. Sam alkohol usztywni chrząszcza więc ten ocet jest do tego, żeby owad był po wyjęciu elastyczny.
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Re: Czy można zbierać chrząszcze do alkoholu ?

Post autor: Marek Hołowiński »

Jacek Kurzawa pisze:TAK! Dodaj do niego, o ile masz tam gdzieś, ocet. Najlepiej zrobić tak: przekąpać chrząszcze w wodzie z octem (50/50) (ok. 2 godziny) a potem do alkoholu 40% z octem (może być nawet pól na pół ale dałbym 1/3 octu i 2/3 wódki). Ocet rozmiękcza tkanki i zapobiega psuciu. Sam alkohol usztywni chrząszcza więc ten ocet jest do tego, żeby owad był po wyjęciu elastyczny.
Z octem sprawdzałeś? Pamiętam taką sztuczkę z jajkiem i butelką... Czy aby chityna się nie rozpuści? Jest chemicznie bardzo blisko ze skorupką jajka...
Andrzej J. Woźnica

Re: Czy można zbierać chrząszcze do alkoholu ?

Post autor: Andrzej J. Woźnica »

niestety takie okazy nie nadają się do analiz DNA ...
możnateż zabijać wrzątkiem
podaje metody zabijania i konserwacji różnych grup (http://bughunter.tamu.edu/additionaltips/coleoptera/):

Coleoptera

129. TIGER BEETLES, Cicindela rectilatera Chaudior and other species. Adult beetles can be collected in sandy areas during summer months with an aerial net. Some species are also attracted to lights, and some give off an odor when handled. Beetles can be killed by freezing or using a jar containing a toxicant (e.g., ethyl acetate) before being mounted on an insect pin. Although difficult to collect, larvae may be collected by feeding a long grass straw stem down the burrow, then digging down until the larva is found. When found, it can be sifted from the soil, killed in boiling water or preservative fluid (e.g., KAAD) and stored in alcohol.

130-132. GROUND BEETLES, many species. Adults can be collected at lights at night or found underneath stones and other objects on the ground. They can be killed and mounted on insect pins. Larvae may also be found underneath debris. Both stages can be collected using pit fall traps. Immature stages should be preserved in alcohol.

133. PREDACEOUS DIVING BEETLES, several species. Adult may be collected from water using a kitchen sieve or aquatic net or at night around lights. They can be killed by freezing or in a toxin-containing jar and then mounted on insect pin or card points. Larvae should be preserved in alcohol.

134. WHIRLIGIG BEETLES, Dineutus and Gyrinus spp. Adults can sometimes be collected at lights. An aquatic net may be useful to capture them but it may be difficult because of their rapid swimming behavior. Adults can be mounted on insect pins or card points. Larvae should be preserved in alcohol.

CARRION BEETLES, Necrophorus and Silpha species. Carrion beetles are generally not seen unless an effort is made to closely examine carcasses, where they are readily found along with blow fly maggots and other insects. Adults can be collected, killed by freezing or in a jar containing a toxicant and then mounted on insect pins.

135. WATER SCAVENGER BEETLES, several genera. Adults may be collected at lights. They can be killed and mounted on insect pins or card points. Larvae can be collected using a kitchen sieve or aquatic net. They should be preserved in alcohol.

138. HORNED PASSALUS BEETLES OR BESS BEETLES, Odontotaenius spp. Colonies can be found by breaking into decaying logs and stumps in wooded areas. Wood infested by these beetles is usually well decomposed and falls apart readily. Adult passalus beetles are usually covered by mites. Adults can be killed and mounted on an insect pin. Larval and pupal stages should be killed in a preservative fluid (e.g. KAAD) or boiled and then stored in alcohol.

139-141. WHITE GRUBS, MAY AND JUNE BEETLES, Phyllophaga crinita (Burmeister) and others. Adults can be easily collected around lights, killed and mounted on insect pins. White grubs are frequently encountered tilling garden soil or by sifting through soil underneath damaged turfgrass. White grubs (larvae) can be killed in a preservative fluid (e.g., KAAD) or boiled and stored in alcohol.

142. GREEN JUNE BEETLE, Cotinis nitida (Linnaeus). Grubs can be collected from the soil by hand-picking and killed in boiling water or preservative fluid, e.g., KAAD, and preserved in alcohol. Adults can be found flying in the air or can be attracted to fermented fruit baits, or from over-ripe fruits and some flowers. They can be collected in a net or beaten into a container and killed by freezing or in a jar containing a toxicant, e.g., ethyl acetate, before being mounted on insect pins.

144, 145. EASTERN HERCULES BEETLE, Dynastes tityus (Linnaeus). Grubs can be collected from the soil by hand-picking. They can be killed in boiling water or preservative fluid, e.g., KAAD, and preserved in alcohol. Adults can also be found in the soil or attracted to lights and “black light” (ultraviolet light) traps. They can be killed by freezing or in a jar containing a toxicant, e.g., ethyl acetate, and mounted on insect pins.

CARROT BEETLE, Bothynus (Ligyrus) gibbosus (De Geer). Adults can be found in the soil or attracted to lights and “black light” (ultraviolet light) traps. They can be killed by freezing or in a jar containing a toxicant, e.g., ethyl acetate, and mounted on insect pins. Grubs can be collected from the soil by hand-picking. They can be killed in boiling water or preservative fluid, e.g., KAAD, and preserved in alcohol.

146, 147. “RAINBOW SCARAB”, A DUNG BEETLE, Phanaeus vindex MacLachlan. These beetles are rarely encountered unless an effort is made to seek out and examine fresh potential larval habitats! Animal, i.e., dog, excrement is rich in insect fauna and can yield these strikingly beautiful beetles. Beetles can be collected, washed to remove debris and killed by freezing or in a jar containing a killing agent. Adults can the be mounted on insect pins.

148-150. FLAT HEADED BORERS OR METALLIC WOOD-BORING BEETLES, Chalcophora, Chrysobothris, Agrilus, and other genera. Adults can be collected in the field with a sweep net or a beating sheet held under trees or shrubs. They are best collected on the sunny side of trees in the spring. The larger specimens like Chalcophora, Chrysobothris and Buprestis can be collected on freshly cut logs by slapping your hand down on the specimen before it flies away. Adult Acmaeodera can be collected on flowers by hand or with a net. Adults can be killed by freezing or in a jar containing a toxicant, e.g., ethyl acetate, and mounted on insect pins. Never place adults in alcohol because the coloration may change. Larvae can be cut out of infested wood, killed in boiling water or preservative fluid, e.g., KAAD, and preserved in alcohol.

151, 152. CLICK BEETLES AND WIREWORMS, many species. Adults can be attracted to ultraviolet (“black”) lights or to sweet syrup smeared on trees and fence posts. They can also be collected with a sweep net from flowers, leaves and stems or by looking under bark of decaying trees and in soil. Adults can be killed and mounted on insect pins. Larvae of soil dwelling species can be attracted to small quantities of seeds or cereals placed in holes dug into the soil or found by tilling soil. Larvae of other species occur in rotting logs and mosses. They can be killed and preserved in alcohol.

153. FIREFLIES OR LIGHTNINGBUGS, several species. Lightning beetles can be collected in early summer (late May) beginning at dusk with an aerial net when they fly and produce their lights. Adults can be killed by freezing, heat or killing fluid (e.g., ethyl acetate) and mounted on an insect pin.

154. DERMESTID BEETLES: LARDER BEETLES AND CARPET BEETLES, Dermestes, Attagenus and Anthrenus spp. Adult carpet beetles can be collected in the spring from flowers or reared from larvae. Adults often accumulate on window sills in infested buildings. They can be killed and glued onto card points mounted on insect pins. Larvae can be collected from infested stored products, killed and preserved in alcohol.

157. SAWTOOTHED GRAIN BEETLE, Oryzaephilus surinamensis Linnaeus. This pest may be found infesting dry goods, crawling around kitchen surfaces and occasionally underneath tree bark. Adults can be killed (by heat or freezing) and glued to cardboard points mounted on insect pins. Immature stages should be preserved in alcohol.

158-160. CONVERGENT LADY BEETLE, Hippodamia convergens Guerin-Meneville. Adult beetles can be collected from aphid-infested host plants or by sweeping vegetation with a net, killed and mounted on an insect pin. Larvae, eggs and pupae can be preserved in alcohol.

158, 161. MULTICOLORED ASIAN LADY BEETLE, Harmonia axyridis Pallas. This species should be common on plants infested with aphids and scale insects and near overwintering sites. Adult beetles can be killed by freezing or in a jar containing a toxicant and mounted on an insect pin. Larval stages can be killed in a preservative fluid and stored in alcohol.

163-166. CONFUSED FLOUR BEETLE, Tribolium confusum Jacquelin duVal. Larvae (grubs) and adults can be collected from stored grain bins or infested food products. Larvae can be killed in boiling water or preservative fluid, e.g., KAAD, and preserved in alcohol. Adults can be killed by freezing or in a jar containing a toxicant, e.g., ethyl acetate, and glued to card points mounted on insect pins. This species is often used as a test animal in laboratory experiments because it is easy to keep in culture.

167-169. BLISTER BEETLES, Epicauta spp. and others. Adults can be collected from flowers or from infested crops with a net. Care should be taken to not handle them. They can be killed by freezing, heat or in a jar containing a killing agent (i.e., ethyl acetate) and then be mounted on an insect pin. Never handle blister beetles in preserved in alcohol because the cantharadin dissolves in alcohol and will cause blisters on the skin.

170. “IRONCLAD” BEETLE, Zopherus nodulosus haldemani Horn. This beetle can be found clinging onto the trunks of trees or outer walls of homes in wooded areas. The adult can be killed by freezing or in a jar containing a killing agent (e.g., ethyl acetate). They are extremely difficult to kill in a killing jar and several hours may be needed for success. Mounting the beetle on a pin may also be difficult because the body is so hard to penetrate, often requiring a thicker pin.

171-175. LOCUST BORER, Megacyllene robiniae (Forster). Adult beetles are frequently found feeding on goldenrod or other flowers in the fall.

176. PECAN TWIG GIRDLERS, Oncideres cingulata Say. Beetles are not commonly encountered on trees, but can be collected in a net when observed. They can also be collected in black light traps or reared in a cardboard box containing sections of infested girdled branches collected before adult emergence. They can be killed by freezing, heating or using a killing jar containing ethyl acetate or other toxicant before mounting them on insect pins.

177. COTTONWOOD BORER, Plectrodera scalator Fabricius. Adults can be collected from infested host plants during the daytime, killed and mounted on insect pins. Immature stages must be dissected from infested trees and should be killed in boiling water or a preservative fluid (i.e. KAAD) before being stored in alcohol.

178. SOYBEAN STEM BORER, Dectes texanus Leconte. Larvae can be dissected from infested host plants such as late-maturing soybeans, killed in boiling water or a preservative fluid, i.e., KAAD, and stored in alcohol. Adults can be collected in the spring using a sweep net, an ultraviolet light (“black light”) trap or be reared from immature stages. They can be killed and mounted on insect pins.

179. COWPEA WEEVIL, Callosobruchus maculatus (Fabricius). Immature stages (larvae or grubs and pupae) and adults can be collected from stored grain bins or infested food products. Immatures can be killed in boiling water or preservative fluid, e.g., KAAD, and preserved in alcohol. Adults can be killed by freezing or in a jar containing a toxicant, e.g., ethyl acetate, and mounted on insect pins.

180, 181. FLEA BEETLES, Epitrix spp., Phyllotreta spp. and others. Adults can be collected from leaves using a sweep net or aspirator. They can then be killed and mounted by gluing them with nail polish or white glue onto cardboard points affixed to insect pins.

182-185. SOUTHERN CORN ROOTWORM OR SPOTTED CUCUMBER BEETLE, Diabrotica undecimpunctata howardi Barber. Larvae can be collected by removing host plants in the susceptible stages. They can be killed in boiling water or a preservative fluid and stored in alcohol. Adults can be collected by sweeping wildflowers or legumes with a sweep net and mounting the beetles on insect pins after killing them.

186-190. ELM LEAF BEETLE, Pyrrhalta luteola (Muller). Adults can be reared or collected and killed by heat, freezing or killing fluid. They can then be mounted on insect pins. Larvae should be killed by boiling or in a preservative fluid (e.g. KAAD) and stored in alcohol.

191, 192. COLORADO POTATO BEETLE, Leptinotarsa decemlineata (Say). Adult beetles and larvae can be collected from host plants by beating them into a container. Adults can be killed by freezing, heat or using a killing jar before being mounted on an insect pin. Larvae (and pupae) should be killed by boiling them briefly or using a preservative fluid (e.g., KAAD) before storing them in alcohol.

193, 194. YELLOWMARGINED LEAF BEETLE, Microtheca ochrolema Stål. Larvae and adults can be collected for infested plants by beating the insects off the foliage into a jar. Adults can be killed by freezing, heat or killing jar before being mounted on insect pins. Larvae can be killed by boiling or in preservative fluid (e.g., KAAD) and preserved, together with other immature stages, in alcohol.

197. ALFALFA WEEVIL, Hypera postica (Gyllenhal). Grubs and adults can be collected in the field with a sweep net or by hand picking. They can be killed in boiling water or preservative fluid, e.g., KAAD, and preserved in alcohol. Adults can be killed by freezing or in a jar containing a toxicant, e.g., ethyl acetate, and mounted on insect pins.

198. BOLL WEEVIL, Anthonomus grandis Boheman. Adults can be captured using a sweep net or pheromone trap. Larvae and pupal stages can be dissected from fallen bolls and squares collected in a cotton field. Immature stages can be killed in a preservative fluid (e.g. KAAD) or boiled and stored in alcohol. Adults can be reared or collected from cotton fruiting structures, killed by freezing, heat or killing agent (e.g. ethyl acetate) and mounted on an insect pin.

199. PLUM CURCULIO, Conotrachelus nenuphar (Herbst). Adult weevils can be collected from host plants by placing a sheet or upside-down umbrella underneath branches and hitting branches with a stick or bat (see “Beat Sheets”). Any beetles present will drop from the branches and “play dead”. Adults can then be killed before being mounted on an insect pin. Larvae can be dissected from infested under-developed fruit collected from the ground. Larvae should be killed in a preservative fluid or boiled before being stored in alcohol.

200-203. PECAN WEEVIL, Curculio caryae (Horn). Emerging adults can be collected as they emerge from the ground in screen enclosures resembling tepees which are 3 ft. In diameter at the base and with a jar attached to the top. Pieces of burlap bags or other cloth tied around a pecan tree trunk in late August so that a flap (appearing as an upside-down V in cross section) is formed will trap adult weevils crawling up the tree trunk after they emerge from the soil, where they can be collected. Adults can also be collected by jarring limbs over a sheet or drop cloth. They can be killed by freezing or in a jar containing a toxicant (e.g. ethyl acetate) before being mounted on an insect pin. Larvae can be collected from pecans collected from the ground which drop prematurely to the ground. Larvae can be killed in boiling water or in a preservative fluid (e.g., KAAD) and preserved in alcohol.

204. RICE WEEVIL, Sitophilus oryzae (Linnaeus). Grubs and adults can be collected from stored grain bins or infested food products. They can be killed in boiling water or preservative fluid, e.g., KAAD, and preserved in alcohol. Adults can be killed by freezing or in a jar containing a toxicant, e.g., ethyl acetate, and mounted on insect pins.

205. RICE WATER WEEVIL,Lissorhoptrus oryzophilus Kuschel. Adults can be collected from leaves of your rice plants a week or so after fields are flooded. Three to 4 weeks after flooding, larvae can be collected by washing roots of plants in a bucket of water. Dislodged grubs will float to the surface where they can be collected and preserved in alcohol or preservative fluid.

206. “SESBANIA WEEVILS”, Eudiagogus pulcer Fahraeus and E. rosenschoeldi Fahraeus. This beetle is easy to collect by picking them off stems and leaves of Sesbania weeds. They can be kept alive for relatively long periods and will not bite when handled. They can be killed by freezing or in a jar containing a toxicant (i.e., ethyl acetate fumes) before being mounted on an insect pin. Immature stages must be collected from the roots of the host plants by sifting through the soil. They can be preserved in alcohol.

207. SWEETPOTATO WEEVIL, Cyclas formicarius elegantulus (Summers). Grubs and adults can be collected from sweet potato tubers or stems and killed in boiling water or preservative fluid, e.g., KAAD, and preserved in alcohol. Adults can be killed by freezing or in a jar containing a toxicant, e.g., ethyl acetate, and mounted on insect pins.

208-210. SOUTHERN PINE BEETLE, Dendroctonus frontalis Zimmermann. All stages can be dissected from underneath bark of dead or dying infested pine trees. Immature stages can be preserved in alcohol, but adults should be glued to a card point mounted on an insect pin.

211. ASIAN AMBROSIA BEETLE, Xylosandrus crassiusculus (Motschulsky). Immature stages can be collected by splitting open infested twigs and branches, and they can be preserved in alcohol. Adults can also be obtained this way, reared from infested wood or trapped using a window pane flight trap – a pane of glass with a trough underneath it baited with ethanol. Adults can be glued to a card point mounted on an insect pin.

:mrgreen: :mrgreen: :mrgreen:
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Re: Czy można zbierać chrząszcze do alkoholu ?

Post autor: Jacek Kurzawa »

Marek Hołowiński pisze:
Jacek Kurzawa pisze:TAK! Dodaj do niego, o ile masz tam gdzieś, ocet. Najlepiej zrobić tak: przekąpać chrząszcze w wodzie z octem (50/50) (ok. 2 godziny) a potem do alkoholu 40% z octem (może być nawet pól na pół ale dałbym 1/3 octu i 2/3 wódki). Ocet rozmiękcza tkanki i zapobiega psuciu. Sam alkohol usztywni chrząszcza więc ten ocet jest do tego, żeby owad był po wyjęciu elastyczny.
Z octem sprawdzałeś? Pamiętam taką sztuczkę z jajkiem i butelką... Czy aby chityna się nie rozpuści? Jest chemicznie bardzo blisko ze skorupką jajka...
Na temat składu skorupek i chityny poczytaj tutaj.
http://naukadlazdrowia.pl/skorupki-jaj- ... dlo-wapnia
https://pl.wikipedia.org/wiki/Celuloza

a o działaniu octu tu viewtopic.php?t=23
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Re: Czy można zbierać chrząszcze do alkoholu ?

Post autor: Przemek Zięba »

Markowi chodziło chyba o wypłukanie soli wapnia (stanowiącej usztywnienie chityny), bo sama chityna to średnio jest zbliżona chemicznie do węglanu wapnia.
Ale chyba nie jest to przez krótki okres czasu szkodliwe dla oskórka. Osobiście konserwowałbym w alkoholu a po powrocie uelastyczniał przez różne zabiegi, co nie jest wiece skomplikowane, tutaj wystarczyłoby gotowanie w roztworze kwasu octowego przez chwile, tak robiłem i nie było problemów.
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Re: Czy można zbierać chrząszcze do alkoholu ?

Post autor: Piątek Wojciech »

Grzegorz Banasiak pisze: Straciłem część octanu i muszę oszczędzać. Pytanie jak w temacie. Czy można zbierać chrząszcze do alkoholu ?
no to tam się musi dziać coś ciekawego, Grzegorz nie napisał w jaki sposób stracił/zużył ten octan( domyślam się , że w związku z dużą ilością owadów), całe szczęście ,że alkohol jest dostępny na całym świecie w ilościach zadawalających do konserwacji owadów :rotfl:
wracając do tematu- ja robię to w ten sposób: fiolka, na dno wata,etykieta tymczasowa,alkohol(wódka), octan etylu, odrobina przegotowanej wody, ważne ,żeby to nie"pływało", tylko wata była zwilżona i lodówka najniższa półka lub zamrażalnik(najwyższa półka)
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Re: Czy można zbierać chrząszcze do alkoholu ?

Post autor: Przemek Zięba »

Piątek Wojciech pisze:Grzegorz nie napisał w jaki sposób stracił/zużył ten octan( domyślam się , że w związku z dużą ilością owadów),
albo nieszczelnym korkiem w wysokiej temperaturze :lol:
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Re: Czy można zbierać chrząszcze do alkoholu ?

Post autor: Grzegorz Banasiak »

Przemek Zięba pisze:
Piątek Wojciech pisze:Grzegorz nie napisał w jaki sposób stracił/zużył ten octan( domyślam się , że w związku z dużą ilością owadów),
albo nieszczelnym korkiem w wysokiej temperaturze :lol:
Wiatr przesunął siatkę, ta walnęła w pudełko a pudełko w butelkę, którą niezakręconą odstawiłem na sekundę, chociaż nigdy tego nie robię, zawsze zalręcam. To był ten jeden raz. Butelka na złość jeszcze się turlała po stoliku i spadla na ziemię. Ciąg niekorzystnych zdarzeń... bywa...
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