Zygoptera
Enable an agent to recognise damselflies, assess observations and populations at the appropriate taxonomic resolution, and choose evidence-based monitoring or habitat actions.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
recalled by Codex without web access - no source was read
Researched by: Codex
Purpose and description
Enable an agent to recognise damselflies, assess observations and populations at the appropriate taxonomic resolution, and choose evidence-based monitoring or habitat actions.
Zygoptera is the suborder of Odonata comprising damselflies, insects with aquatic juvenile stages and winged predatory adults typically distinguished by widely separated eyes and similarly shaped forewings and hindwings.
It can be Identify a photographed adult, larva or exuvia to the lowest defensible rank and request missing diagnostic views.; Link records to a versioned damselfly classification while retaining unresolved or conflicting identifications.; Design stage-specific surveys and distinguish adult presence from local breeding evidence.; Compare repeated counts using recorded effort, timing and observation conditions.; Prioritise habitat investigation or intervention using the identified taxon's requirements and site evidence..
Distinguishing features
Taxonomic test: Zygoptera denotes a suborder of Odonata, not a species or individual; ITIS records Zygoptera Selys, 1854. [ITIS](https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=102042)
Adult recognition test: assess widely separated eyes, a usually slender body and wing configuration together; no single silhouette or resting posture should determine identification. [SANBI identification guide](https://www.sanbi.org/wp-content/uploads/2024/05/2011_BioSeries21.pdf)
Resting-wing test: wings held together support many damselfly identifications, but spread-wing exceptions require additional characters. [SANBI identification guide](https://www.sanbi.org/wp-content/uploads/2024/05/2011_BioSeries21.pdf)
Larval recognition test: external terminal caudal lamellae support Zygoptera identification; assess their form and preservation with a regional key rather than requiring three intact appendages in every observation. [Australian Odonata identification guide](https://www.environment.nsw.gov.au/resources/publications/09730AustOdonata.pdf)
Scope
+ Taxonomic identity, authority, classification sources and subordinate taxa
+ Adult and larval recognition, including exceptions and identification uncertainty
+ Life stages, sex, maturity and reproductive evidence
+ Stage-specific habitat, occurrence and evidence of local breeding
+ Population monitoring, species-level conservation context and habitat actions
- General insect anatomy and traits shared across Odonata
- Independent models of Anisoptera or other neighbouring taxa
- Complete species accounts for every damselfly
- Whole-wetland hydrology, chemistry or management models
- Pet-trade products, pest-control products and specimen ownership
Characteristics
- Taxonomic identity and crosswalk
- Accepted name, rank, authority, parent taxon, classification version and external identifiers; NCBI Taxonomy ID 50488 Connects damselfly observations to a taxonomic concept without treating Zygoptera as a binomial. [NCBI](https://www.ncbi.nlm.nih.gov/datasets/taxonomy/50488/)
- Subject resolution
- Suborder; subordinate taxon; local population; individual; specimen; occurrence Prevents an individual's condition or a species assessment from being attributed to the whole suborder.
- Identification support
- Provisional; supported; expert-verified; unresolved, with diagnostic evidence and alternatives Determines whether species-specific ecological or conservation conclusions are justified.
- Life stage and material
- Egg; larva; emerging adult; teneral adult; mature adult; exuvia; unknown Changes identification methods, survey detectability and the interpretation of breeding evidence.
- Sex, maturity and colour form
- Evidence-supported sex, maturity and species-specific colour form; unknown where unresolved Avoids confusing sexual dimorphism or maturation changes with taxonomic differences.
- Diagnostic dimensions
- Body, abdomen and hindwing length in mm; stage, method and uncertainty recorded Supports comparison with identification keys without imposing one size range on all damselflies.
- Breeding-site association
- Observed waterbody or microhabitat, coordinates, date, stage and breeding-evidence category Separates an adult sighting from evidence that a site supports development.
- Survey count and effort
- Individuals or exuviae per defined visit, transect or sampling unit; duration and area recorded Makes repeat observations interpretable without equating raw counts with population size.
- Conservation assessment applicability
- Assessed subordinate taxon, category, geographic scope, assessment year and source Prevents assignment of one unsupported IUCN status to Zygoptera.
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 5 bundles · 9 layers · 16 findings · 24 questions.
Damselfly taxonomic identity Establishes which taxonomic concept and biological subject a record concerns.
Zygoptera is a broad taxon whose name must not substitute for species identity or individual identity.
Accepted concept
Anchors the suborder to an explicit classification.
Name, rank and authority
Record the accepted suborder name, authority, parent order and source-specific identifiers without inventing a binomial.
- Which classification establishes the accepted name, rank and authority of Zygoptera? provenance
- Which GBIF and NCBI records refer to the same taxonomic concept, and when were they checked? provenance
Subordinate subjects
Separates membership in Zygoptera from the identity of an observed biological subject.
Taxon, population and individual
Attach occurrence, condition and conservation claims to their actual subjects and taxonomic resolution.
- Does this claim concern the suborder, a named species, a local population or one individual? boundary
- What evidence connects this observation to a subordinate damselfly taxon? provenance
Stage-specific recognition Organises the anatomical evidence needed to recognise damselflies at different stages.
Adult photographs, larvae and exuviae expose different characters and support different identification limits.
Adult diagnostics
Evaluates adult morphology through appropriate regional keys.
Adult character combination
Record eye separation, wing form and venation, markings and relevant terminal structures, together with the views available.
- Which visible characters support Zygoptera and exclude plausible neighbouring odonate taxa? boundary
- Which additional views or expert examination would resolve the remaining identification alternatives? action
Larval and exuvial diagnostics
Handles immature morphology and the condition of diagnostic structures.
Lamellae and supporting characters
Assess caudal lamellae alongside labial, antennal and other characters required by the selected key; distinguish missing structures from diagnostic absence.
- Which diagnostic structures are visible, intact, damaged or unobservable in this larva or exuvia? measurement
- Does the identification key cover this locality, developmental stage and candidate taxon? boundary
Development and breeding habitat Links developmental state and reproductive evidence to the habitats actually used.
A damselfly's observed stage and behaviour determine what can be inferred about habitat use and successful development.
Stage, sex and maturity
Interprets appearance and behaviour in developmental context.
Developmental interpretation
Record stage, sex and maturity separately, with species-specific support for interpreting colour forms or reproductive behaviour.
- What evidence establishes life stage, sex and maturity rather than relying on colour alone? provenance
- Could the observed appearance reflect maturation, sexual dimorphism or an alternative colour form within the candidate species? boundary
Waterbody and emergence
Relates occurrences to larval habitat and evidence of local reproduction.
Site use and breeding evidence
Separate adult visitation, mating, oviposition, larval presence and emergence; record waterbody or microhabitat conditions at the relevant location and time.
- What evidence supports visitation, attempted reproduction, larval development or completed emergence at this site? boundary
- Which water permanence, flow, vegetation, substrate and microhabitat observations are relevant to the identified taxon? measurement
Distribution, monitoring and response Turns damselfly records into bounded population interpretations and justified actions.
Occurrence, detectability and conservation status operate at different geographic and taxonomic scales.
Range and repeat observation
Distinguishes documented distribution from local survey outcomes.
Occurrence and detectability
Retain locality uncertainty, observation dates, survey effort and conditions; assess native-range claims and apparent absences at the identified taxon's scale.
- Which evidence supports native, introduced, transient or uncertain occurrence of the identified taxon here? provenance
- Are changes in counts interpretable after accounting for season, weather, stage, effort and identification consistency? measurement
Assessment and intervention
Connects applicable assessments and observed pressures to proportionate action.
Taxon-specific conservation action
Use dated assessments and evidence of site pressures to select monitoring or habitat actions, with explicit success criteria.
- Which conservation assessment applies to the identified taxon and geographic scope, and what is its assessment year? provenance
- Which observed pressure justifies action, and what change in larval occupancy, emergence or comparable survey results would demonstrate benefit? action
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- Verify the suborder's authorship, date, database identifiers, and current family classification before formal publication.
- Aquatic juveniles usually possess three external caudal gill lamellae; adult wing posture and other familiar identification rules have exceptions.
- Species-level identification is required to supply a binomial, native range, or dated conservation assessment; none applies uniformly to the entire suborder.
- Which of these check these first hold for the sense of Zygoptera this model covers, and on what evidence? provenance
Kinds and varieties
Recalled without web access and unsourced; every item is a lead to verify.
- Calopterygidae - broad-winged damselflies
- Coenagrionidae - pond damselflies
- Lestidae - spreadwing damselflies
- Platycnemididae - white-legged damselflies
- Platystictidae - shadow damselflies
- Chlorocyphidae - jewel damselflies
- Which of these kinds and varieties hold for the sense of Zygoptera this model covers, and on what evidence? provenance
Identifiers and schemes
Recalled without web access and unsourced; every item is a lead to verify.
- Zoological scientific name - Zygoptera - A suborder name, not a species binomial; its members are commonly called damselflies.
- GBIF taxon key - Integer taxon identifier - The identifier and taxonomic treatment require verification in the GBIF backbone.
- NCBI Taxonomy - Numeric Taxonomy ID - Identifies a taxonomic node associated with biological sequence records; the exact identifier is not supplied from recall.
- Which of these identifiers and schemes hold for the sense of Zygoptera this model covers, and on what evidence? provenance
Standards and regulation
Recalled without web access and unsourced; every item is a lead to verify.
- International Code of Zoological Nomenclature, issued by the International Commission on Zoological Nomenclature, governs family-, genus-, and species-group names within Zygoptera; suborder names are largely outside its scope.
- IUCN Red List Categories and Criteria, issued by the International Union for Conservation of Nature, provide the framework for assessing extinction risk of individual damselfly species.
- Which of these standards and regulation hold for the sense of Zygoptera this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Freshwater ecological monitoring using damselfly assemblages alongside other aquatic organisms.
- Research on mating behaviour, sexual selection, territoriality, and dispersal.
- Conservation planning for wetlands, streams, and associated terrestrial vegetation.
- Natural-history recording and biodiversity surveys.
- Which of these real-world use hold for the sense of Zygoptera this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Wetland drainage, stream alteration, and removal of bankside vegetation can eliminate breeding habitat.
- Water pollution can impair aquatic juvenile survival; sensitivity differs among species.
- Drought and changes in water temperature or flow can disrupt development and emergence.
- Identifications based only on colour can confuse sexes, immature adults, and closely related species.
- Treating the entire suborder as having one conservation status obscures differences among species and populations.
- Which of these failure modes and hazards hold for the sense of Zygoptera this model covers, and on what evidence? provenance
Regional variation
Recalled without web access and unsourced; every item is a lead to verify.
- Damselflies occur on all continents except Antarctica, with species composition and diversity varying strongly by climate and freshwater habitat.
- Tropical regions support many specialised forest-stream species, while temperate assemblages commonly show pronounced seasonal adult emergence.
- Habitat requirements vary from standing water to flowing streams, with some species using specialised small water bodies.
- Which of these regional variation hold for the sense of Zygoptera this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- Odonata - The encompassing insect order; Zygoptera is one of its suborders.
- Anisoptera - Dragonflies generally have hindwings broader at the base than their forewings; damselflies have more similarly shaped wing pairs and widely separated eyes.
- Ephemeroptera - Mayflies belong to a different order and typically have abdominal tail filaments and greatly reduced or absent hindwings.
- Individual damselfly - An individual is one organism with a particular life stage and sex; Zygoptera is a taxon containing many species, populations, and individuals.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of Zygoptera this model covers, and on what evidence? provenance
What the second pass must settle
- Which current specialist classification and GBIF taxon identifier should anchor Zygoptera, and how should disagreements among taxonomic backbones be represented?
- Which regional adult and larval keys provide adequate coverage, including unusual wing postures and caudal-lamella morphology?
- Which subordinate taxa have habitat or developmental exceptions that require qualifications to general damselfly expectations?
- Which geographic region and subordinate taxa should receive verified native-range records and dated IUCN or regional assessments first?
- What survey protocols and evidence thresholds should establish local breeding, probable absence and population change for the intended monitoring context?