pjt222 採集與保存標本
以博物館級準則採集並保存昆蟲標本，供分類研究、參考收藏、生態研究之用。
適用時機
- 需實體標本以作明確分類鑑定
- 為某棲地、區域或類群建參考收藏
- 為已發表之生態研究保存憑證標本
- 需送標本予分類專家以鑑定
- 理或修既有之昆蟲收藏
輸入
- 必要：於擬採地合法採集之授權（許可、地主同意）
- 必要：適於目標類群之採集器具
- 必要：保存材料（針、乙醇或兩者）
- 必要：標籤材料（檔案紙、細筆或印表機）
- 選擇性：鱗翅目與蜻蜓目之展翅板、鬆弛室、解剖鏡、資料庫、單元盤與貯藏櫃
步驟
步驟一：驗法律要件
採集前，確已有於該地採集之合法權，且目標類群未受保護。
FUNDAMENTAL RULE:
Never collect without proper authorization. Never collect from
protected areas without explicit permits. Never collect protected
species. The scientific value of a specimen is zero if it was
collected illegally — it cannot be published, deposited in a
museum, or used in formal research.
Legal Checklist:
+--------------------+------------------------------------------+
| Requirement | Verify |
+--------------------+------------------------------------------+
| Land access | Written permission from landowner, or |
| | site is publicly accessible for |
| | collecting (many parks prohibit it) |
+--------------------+------------------------------------------+
| Collection permit | Required for most public lands, nature |
| | reserves, national parks. Apply through |
| | the managing agency. Specify taxa, |
| | methods, dates, and quantities. |
+--------------------+------------------------------------------+
| Protected species | Check national and regional red lists, |
| | CITES appendices, and local endangered |
| | species legislation. Some butterflies, |
| | beetles, and dragonflies are protected. |
+--------------------+------------------------------------------+
| Export/import | Moving specimens across international |
| | borders requires phytosanitary |
| | certificates and may require CITES |
| | permits depending on the taxon. |
+--------------------+------------------------------------------+
| Institutional | If collecting for an institution, follow |
| protocols | their collection policy and ethics |
| | review requirements. |
+--------------------+------------------------------------------+
Minimizing Collection Impact:
- Collect only the minimum number of specimens needed
- Avoid collecting from small or isolated populations
- Do not collect gravid (egg-bearing) females if population is small
- Record the abundance at the site — if the species appears rare, photograph instead
- Prefer common and abundant species for teaching collections
預期： 所有必需之許可已得，受保護物種名單已查，採集者明於該地可採與不可採者。
失敗時： 若不能得許可，勿採。於原地拍攝標本並用公民科學平台鑑定。若採得者為受保護物種，即諮野生動物主管。勿棄標本——意外採集宜報非隱。
步驟二：擇採集法
擇合目標類群、棲地、研究目的之法。不同法取昆蟲群落之不同部分。
Collection Methods:
+--------------------+------------------------------------------+
| Method | Best For |
+--------------------+------------------------------------------+
| Sweep net | Flying and vegetation-dwelling insects |
| | in grasslands, meadows, and low shrubs. |
| | Technique: sweep in a figure-8 pattern |
| | through vegetation; empty net into a |
| | killing jar or collecting bag after |
| | every 10-20 sweeps. |
+--------------------+------------------------------------------+
| Beating tray | Arboreal insects on trees and shrubs. |
| | Hold a white sheet or tray under a |
| | branch; strike the branch sharply 3-5 |
| | times; collect dislodged insects with |
| | an aspirator or forceps. |
+--------------------+------------------------------------------+
| Pitfall trap | Ground-dwelling insects (beetles, |
| | ants, crickets). Bury a cup flush with |
| | the soil surface. Add a rain cover. |
| | Check every 24-48 hours. Use propylene |
| | glycol as preservative (non-toxic to |
| | mammals; do not use ethylene glycol). |
+--------------------+------------------------------------------+
| Light trap | Nocturnal flying insects (moths, many |
| | beetles, lacewings). Use a white sheet |
| | illuminated by a mercury vapor or UV |
| | light. Operate from dusk to midnight |
| | or dawn. Most effective on warm, humid, |
| | moonless nights. |
+--------------------+------------------------------------------+
| Malaise trap | Flying insects, especially Hymenoptera |
| | and Diptera. A tent-like mesh barrier |
| | that intercepts insects in flight; |
| | they walk upward into a collecting head |
| | containing preservative. Runs |
| | continuously; check weekly. |
+--------------------+------------------------------------------+
| Aspirator (pooter) | Small, delicate insects that cannot be |
| | handled with forceps. Suck the insect |
| | into a vial through a tube (a mesh |
| | filter prevents inhalation). Use only |
| | mouth-operated aspirators with a filter. |
+--------------------+------------------------------------------+
| Pan trap | Pollinators and small flying insects. |
| | Colored bowls (yellow, white, blue) |
| | filled with soapy water. Place at |
| | vegetation height. The soap breaks |
| | surface tension; insects fall in and |
| | drown. Check every 24-48 hours. |
+--------------------+------------------------------------------+
| Hand collection | Large, slow, or sessile insects. |
| | Pick directly with forceps or fingers. |
| | Useful for bark-dwelling beetles, |
| | caterpillars on host plants, aquatic |
| | larvae under rocks. |
+--------------------+------------------------------------------+
預期： 據目標類群與棲地擇一或多採集法，器具已組備於入野前。
失敗時： 若擬用之法未得標本（如大雨中揮網），改用他法。光誘捕需特定氣候——暖、濕、靜、無月之夜最宜。氣候不佳則另排期勝於效差之設陷。
步驟三：以人道速處標本
採得之蟲宜速且人道處之。久困損標本（斷足、失鱗）且倫理不容。
Dispatch Methods:
+--------------------+------------------------------------------+
| Method | Procedure and Notes |
+--------------------+------------------------------------------+
| Ethyl acetate | Place a wad of absorbent material |
| killing jar | (plaster of Paris or tissue) in the |
| | bottom of a wide-mouth jar. Saturate |
| | with ethyl acetate. Place insects in |
| | the jar; death occurs within 1-5 |
| | minutes for most species. |
| | Caution: ethyl acetate is flammable and |
| | an irritant. Use in well-ventilated |
| | areas. Do not inhale. |
+--------------------+------------------------------------------+
| Freezing | Place live insects in a container in a |
| | freezer at -20C for 24 hours. Suitable |
| | for specimens brought back alive. |
| | Produces well-relaxed specimens ideal |
| | for pinning. |
+--------------------+------------------------------------------+
| Ethanol drowning | Immerse directly in 70-95% ethanol. |
| | Used for soft-bodied insects that will |
| | be wet-preserved (larvae, aphids, small |
| | Diptera). Not suitable for Lepidoptera |
| | (destroys scales) or specimens intended |
| | for dry pinning. |
+--------------------+------------------------------------------+
NEVER use:
- Cyanide jars (potassium cyanide) — extremely toxic to humans;
obsolete in modern entomology
- Crushing or squeezing — destroys morphological features
- Prolonged suffocation — slow and damages specimens from struggling
預期： 標本速處（數分鐘內）且形態特徵受損最少。鱗翅目分置以防觸他標本而失鱗。
失敗時： 若無乙酸乙酯，冷凍為多數類群之佳代。野外二者皆無時，將標本置於個別小瓶或信封（鱗翅目以玻璃紙信封收翅），歸來即凍。勿將活蟲置於無致死劑之封閉容器——其必自損。
步驟四：針固標本（乾保存）
針每標本穿其目之正確位。正確之針位於診斷特徵之存取與長期結構完整皆為必需。
完整針位表（按目）、針擇、針高、展翅之法，見 references/EXAMPLES.md。
預期： 每標本針穿其目之正確位，於正確高度，需展翅者（鱗翅目、蜻蜓目）已展翅。標本完全乾前勿動。
失敗時： 若標本過乾而脆（足斷、翅裂），先須鬆弛。置於鬆弛室（密封容器含濕砂或紙巾及數滴苯酚以防霉）24-48 時至肢可曲。若針位錯，趁新鮮慎重針勝於留不正之架。
步驟五：乙醇中保存（濕保存）
軟體標本乾則萎或變形者，須液中保存。
Wet Preservation Protocol:
+--------------------+------------------------------------------+
| Category | Procedure |
+--------------------+------------------------------------------+
| Preservative | 70-80% ethanol for morphological study. |
| | 95-100% ethanol for DNA-grade |
| | preservation (change ethanol after 24 |
| | hours to remove dilution from body |
| | fluids). |
+--------------------+------------------------------------------+
| Suitable specimens | Larvae (caterpillars, grubs, maggots), |
| | soft-bodied adults (aphids, termites, |
| | some small Diptera), aquatic insects, |
| | immature stages (nymphs, pupae) |
+--------------------+------------------------------------------+
| Containers | Glass vials with screw caps or |
| | polyethylene snap-cap vials. Avoid |
| | rubber stoppers (ethanol dissolves |
| | them). Label goes INSIDE the vial. |
+--------------------+------------------------------------------+
| Fluid ratio | At least 3 parts preservative to 1 part |
| | specimen volume. Too little fluid |
| | results in poor preservation. |
+--------------------+------------------------------------------+
| Long-term storage | Check fluid levels every 6-12 months. |
| | Ethanol evaporates even through sealed |
| | caps. Top up as needed. Store in a cool, |
| | dark location. |
+--------------------+------------------------------------------+
Do NOT use:
- Formaldehyde/formalin for routine insect preservation (destroys DNA,
poses health risks, requires special disposal). Some historical
collections used it; modern practice strongly discourages it.
- Isopropanol as a substitute — it causes excessive hardening and
color loss compared to ethanol.
預期： 軟體標本以 70-80% 乙醇（DNA 工作 95%+）存於附標之瓶中，液量足。
失敗時： 若野外無乙醇，可暫存於高度透明烈酒（伏特加、Everclear）以應急。儘速轉實驗室級乙醇。若存弱液過久而分解，尚可鑑定但不宜分子工作。
步驟六：每標本必標
每標本必攜供科學用最低資料之標籤。無標之標本無科學價。
Labeling Standards:
LABEL 1 (Locality label — placed closest to the specimen on the pin):
Line 1: Country, State/Province
Line 2: Specific locality (e.g., "3 km NE of Oakville, Elm Creek trail")
Line 3: Latitude/Longitude (decimal degrees preferred)
Line 4: Elevation (meters above sea level)
Line 5: Date (e.g., 15.vi.2026 or 15-Jun-2026)
Line 6: Collector name (e.g., "leg. P. Thoss")
LABEL 2 (Habitat/method label — below the locality label):
Line 1: Habitat (e.g., "deciduous forest, oak canopy")
Line 2: Collection method (e.g., "sweep net" or "light trap")
Line 3: Additional ecological data if relevant
LABEL 3 (Determination label — lowest on the pin, added when identified):
Line 1: Order Family
Line 2: Genus species Author, Year
Line 3: "det. [identifier name], [year]"
Label Format Rules:
- Use archival-quality paper (acid-free, resistant to fumigant chemicals)
- Print labels using a laser printer (inkjet fades; handwriting smudges)
- Labels should be small (approximately 13mm x 8mm) — do not obscure
the specimen
- For wet specimens, the label goes INSIDE the vial on acid-free paper
written in pencil or printed with a laser printer (ink dissolves in
ethanol; pencil graphite does not)
- Pin labels below the specimen using the pinning block for consistent
heights
預期： 每標本至少攜地點標含國、地、座標、日期、採集者。濕標本瓶內以鉛筆或雷射印之內標攜同資料。
失敗時： 野外未記 GPS 座標時，據地點描述於圖估之。日期不確，記最佳估並加問號。略帶之標本遠勝全無標。勿將標籤由一標本移至另一。
步驟七：貯藏與護收藏
妥善貯藏以防物理損、蟲害、環境退化。
Dry Collection Storage:
+--------------------+------------------------------------------+
| Component | Standard |
+--------------------+------------------------------------------+
| Unit trays | Cardboard or plastic trays with foam |
| | bottoms (plastazote preferred — pinnable |
| | and chemically inert). Specimens pinned |
| | into the foam in organized rows. |
+--------------------+------------------------------------------+
| Drawers | Tight-fitting drawers that exclude dust |
| | and pests. Glass-topped drawers allow |
| | viewing without opening. |
+--------------------+------------------------------------------+
| Cabinets | Steel cabinets with tight seals. |
| | Compressed-air gaskets are ideal. |
+--------------------+------------------------------------------+
| Pest management | Place pest strips (dichlorvos/DDVP) or |
| | naphthalene/paradichlorobenzene crystals |
| | in each drawer. Check and replace every |
| | 6 months. Museum beetle (Anthrenus) and |
| | book lice (Psocoptera) are the primary |
| | pests — a single infestation can destroy |
| | an entire drawer. |
+--------------------+------------------------------------------+
| Climate control | Target: 40-50% relative humidity, |
| | 18-22C temperature. Fluctuations cause |
| | expansion/contraction damage. Avoid |
| | direct sunlight (fades color). |
+--------------------+------------------------------------------+
Wet Collection Storage:
- Store vials upright in racks or jars
- Check fluid levels every 6-12 months; top up with fresh ethanol
- Store in a cool, dark, well-ventilated area (ethanol fumes)
- Keep away from ignition sources (ethanol is flammable)
- For long-term storage, use screw-cap glass vials; snap-cap
plastic vials allow more evaporation
預期： 乾標本存於封閉抽屜附驅蟲劑。濕標本豎存且乙醇量足。貯藏區溫度與濕度穩定。
失敗時： 無博物館級貯藏時，將針固標本存於氣密塑膠容器（釣具箱、Tupperware）附泡沫內襯與驅蟲劑。此足於個人收藏與短期貯藏。科學有價者宜長期存於認定之博物館或大學收藏。
步驟八：理並入資料庫
以系統性整理與數據管理維收藏為活之科學資源。
Curation Tasks:
+--------------------+------------------------------------------+
| Task | Frequency |
+--------------------+------------------------------------------+
| Pest inspection | Every 3-6 months. Look for frass (fine |
| | powder under specimens), cast skins, |
| | or live pests in drawers. |
+--------------------+------------------------------------------+
| Fumigant refresh | Every 6 months. Replace pest strips or |
| | crystals. Ensure drawers seal tightly. |
+--------------------+------------------------------------------+
| Ethanol top-up | Every 6-12 months for wet collections. |
+--------------------+------------------------------------------+
| Repair | Re-pin loose specimens. Re-glue detached |
| | appendages (use water-soluble PVA glue). |
| | Replace damaged labels. |
+--------------------+------------------------------------------+
| Identification | Send unidentified specimens to |
| updates | specialists. Update determination labels |
| | as IDs are returned — never remove old |
| | determination labels; add new ones below.|
+--------------------+------------------------------------------+
Database Entry (minimum fields):
- Catalog number (unique identifier for each specimen)
- Taxon (order, family, genus, species)
- Locality (country, state, specific location, coordinates)
- Date of collection
- Collector
- Collection method
- Determiner and determination date
- Storage location (cabinet, drawer, row, position)
- Preservation type (pinned, ethanol, slide-mounted, point-mounted)
Database Standards:
- Use Darwin Core format for interoperability with global databases
(GBIF, iDigBio)
- Record coordinates in decimal degrees (WGS84 datum)
- Use ISO 8601 date format (YYYY-MM-DD) in databases
- Assign a unique catalog number to every specimen, even if unidentified
預期： 所有標本於資料庫編目附獨一識別碼、分類、地、日、採集者、貯藏位置。收藏有定期檢查與維護之排程。
失敗時： 若全資料庫不可行，至少維手寫編目或試算表附標本對應之編號。編號連標本與其資料——無之，若標籤失則二者斷。即簡單編號表亦勝於全無。
驗證
- 採集前已驗法律要件並得許可
- 採集法合目標類群與棲地
- 標本處之人道且速
- 乾標本針穿其目之正確位，需展翅者已展翅
- 軟體標本存於 70-80% 乙醇
- 每標本攜地點標含日期、地、座標、採集者
- 濕標本標以鉛筆或雷射印置瓶內
- 貯藏含驅蟲劑與穩定環境
- 標本於資料庫或筆記中編目附獨一識別碼
常見陷阱
- 無許可而採：非法標本不可發表、存博、跨境。先求授權
- 過度採集：取超所需耗群無益。取最少數（每地每形態種 5-10 個）
- 多地混一器：地點資料失確。每次採集各器各暫標
- 錯針位：針甲蟲於胸中而非右鞘翅遮腹面診斷。總查目別針位
- DNA 乙醇過稀：分子分析需 95%+ 且 24 時後換以去體液稀釋。70% 保形態而時退 DNA
- 忘濕標本內標：外貼可脫。瓶內標乃永久之記
- 忽蟲害：皮蠹可數週毀一整抽屜。定期監測與驅蟲劑非選項
相關技能
identify-insect— 採得標本之形態鑑定，用二叉檢索、翅脈、口器、觸角document-insect-sighting— 目擊之攝影與脈絡記錄，可補或代實體採集observe-insect-behavior— 活蟲之行為觀察規約，採集之前或代之survey-insect-population— 系統性族群調查，通常需採集以鑑定與憑證