Size reference
Source supported22.2 mm body length excluding antennae and proboscis
Female L. prochorista holotype reference, not L. gloriae or a genus size range. [D1]
EXHIBIT 246
Lichnomesopsyche
Lichnomesopsyche
Prehistoric insect
Lichnomesopsyche was a Jurassic scorpionfly with a long fluid-feeding proboscis, associated by inference with gymnosperm plants. [3]
TWO WAYS TO PICTURE THE PAST
Science & the silver screen
Compare the evidence with the familiar movie image. The illustrations are not to a shared scale.
01 / SOURCE-INFORMED RECONSTRUCTION
A life reconstruction from the evidence
Image unavailableIllustrative life reconstruction of Lichnomesopsyche in a period-appropriate environment; coloration and missing anatomy are interpretations.The exhibit and its credited image source remain available.
An illustrative reconstruction. Compare its anatomy with the evidence and limitations in the dossier. [2]
Source-informed reconstruction. Appearance evidence [2]. Original illustration; missing anatomy, coloration and scenery include interpretation.
Fossils constrain this life reconstruction. Missing anatomy, coloration and the environmental scene include interpretation; the dossier explains the evidence limits.
02 / MOVIE-STYLE INTERPRETATION
A cinematic imagination
Image unavailableIllustrative living reconstruction of Lichnomesopsyche; missing anatomy and exact colors remain uncertain.The exhibit and its credited image source remain available.
An illustrative reconstruction. Compare its anatomy with the evidence and limitations in the dossier. Lighting, coloration and scenery are artistic choices. This image does not document a fossil locality or behavior.
Original artwork · artistic interpretation.
Scientific view: source-informed reconstruction, credited paleoart or specimen-based imagery. Movie-style view: Original artistic interpretation. Reconstructions involve uncertainty.
PERIODMiddle–Late Jurassic[2]
DIETPlant fluids inferredEvidence and uncertainty in the dossier
TOTAL LENGTHSee the dossierEstimate scope matters
FOSSILS FOUNDChina, Kazakhstan[5]
MEET THE ANIMAL
Meet Lichnomesopsyche
Lichnomesopsyche was a Jurassic insect called a scorpionfly. That name does not mean it was a scorpion, or that it carried a venomous stinger. A later revision describes its long mouthparts, slender legs and narrow wings. The scientists also compared male genital structures to distinguish three species within the genus. Similar-looking wing veins alone were not always enough to identify which species a fossil represented. [D2]
Its long mouthparts were shaped like a drinking tube. Smithsonian researchers compared such tubes with channels in the reproductive structures of gymnosperms, the seed plants that include conifers and cycads. The channels could contain nectar-like pollen drops. This makes feeding on plant fluids a supported interpretation of the broader fossil evidence. It does not preserve an actual visit by this insect to one identified plant, or prove exactly how efficiently it transferred pollen. [D3]
Measurements need careful labels. A 2016 study reported a 22.2-millimeter body for a female L. prochorista fossil, leaving antennae and proboscis out of that number. Its proboscis was at least 9.7 millimeters long. Those are measurements of that specimen and species. This gallery instead reconstructs L. gloriae using its described anatomy. Comparing related fossils is helpful, but their measurements should not silently become a single supposedly universal size. [D1]
PREHISTORIC ANIMAL DOSSIER
A life in profile.
The animal, the evidence, and the questions still open.
Its narrow veined wings and elongated mouthparts reveal an extinct feeding design; direct pollination behavior is not preserved. [D4] [D2]
Profile scope: Genus — Lichnomesopsyche; galleries use L. gloriae anatomy. The size reference is explicitly a different species, L. prochorista. [D1]
- Time
- Middle–Late Jurassic
- Fossil locations in this exhibit
- China, Kazakhstan
How to read the evidence
Source supported identifies a description documented by the cited source. Inferred marks a reconstruction or functional estimate. Debated marks competing interpretations. Not established means the sources reviewed for this dossier do not support a firm conclusion; it does not mean a behavior never occurred.
A size reference is an estimate, not a population range. Nesting evidence does not by itself establish courtship, mate choice, or lifelong pairing.
Body mass
Not establishedNot established here
No body-mass estimate is supplied in the reviewed specimen descriptions. [D1]
Diet
InferredGymnosperm fluids inferred
Long mouthparts fit proposed pollen-drop channels; a particular observed feeding visit is not preserved. [D3]
Habitat
InferredJurassic gymnosperm vegetation inferred
Reviewed comparisons concern seed-plant reproductive structures; fossil burial sediments do not identify an exact perch. [D3]
Movement
InferredWalking and flight inferred
Six legs and two pairs of membranous wings support these capabilities; speeds remain unknown. [D1]
Distinctive anatomy
Source supportedLong proboscis and four narrow wings
L. gloriae has slender legs, short filiform antennae and an elongate segmented abdomen; no scorpion stinger. [D2]
Reproduction & life together
Reproduction
Source supportedMale and female adults documented
Genital structures distinguish sexes and species; attributable eggs, larvae and nesting remain unestablished in the reviewed revision. [D2]
Courtship
Not establishedNot established here
The reviewed revision describes adult reproductive anatomy without a courtship sequence. [D2]
Social behavior
Not establishedNot established here
The reviewed original specimens do not establish colonies or cooperation. [D1]
Dossier research & sources
Sources and inspection notes for the claims in this profile.
- New data from the Middle Jurassic of China shed light on the phylogeny and origin of the proboscis in the MesopsychidaeBMC Evolutionary Biology; Lin et al., 2016 · Accessed 2026-10-08Original full article XML/body retained and inspected, including measurement definition, female L. prochorista type, genus diagnosis, flight anatomy and comparative gymnosperm-fluid feeding. · Inspected: page
- Revision of the long-proboscid scorpionflies, Lichnomesopsyche Ren, Labandeira, and Shih, 2010Journal of Paleontology; Lian, Cai & Huang, 2021 · Accessed 2026-10-08Original full author-hosted revision inspected: three species, male/female genitalia, L. gloriae anatomy, Haifanggou Formation Middle–Upper Jurassic wording, wing-venation identification limits and genus validity. Cambridge abstract alone is not claimed as full text. · Inspected: page
- Prehistoric pollination: Scorpionfly mouthparts fit tubular channels of gymnosperm conesSmithsonian Institution, 2009 · Accessed 2026-10-08Institutional research-team text and caption inspected through indexed page text; compares mouthparts with gymnosperm pollen-drop channels. No modern courtship behavior is attributed to the extinct genus. · Inspected: page
- Scorpionflies Push Back Earliest Pollination (2 of 6)AAAS EurekAlert; original research-team image caption, 2009 · Accessed 2026-10-08Full primary media caption inspected; identifies L. gloriae, late Middle Jurassic northeastern China, long hairy mouthparts and fossil specimen CNU-M-NN2005-020-1. Caption inspection is not a claim of viewing its unavailable media pixels. · Inspected: page
- The Fossil Record of Long-Proboscid Nectarivorous InsectsEntomological Review; Khramov, Bashkuev & Lukashevich, 2020 · Accessed 2026-10-08Selected original author-uploaded full-text passages inspected: Table1 separates Chinese named species from Upper Jurassic Karatau Lichnomesopsyche sp.; Figure5 identifies PIN2997/4185 separately from family-only PIN2239/1807. The Kazakhstan genus occurrence does not change the Chinese species anchors for gallery anatomy or measured length. No claim to reading the entire88-page review. · Inspected: page
THE STORY IN THE FOSSILS
A drinking tube before flower dominance
The research-team caption identifies a long, hairy proboscis about ten millimeters long in L. gloriae. This is a mouthpart reference, separate from the body measurement of L. prochorista. [4]
A note on scale and time
The dossier identifies the scope of each reference estimate. A mount, an individual fossil and a species-wide adult range are different measurements. Comparison metrics remain unavailable where adult scope has not been established. Unknown does not mean zero.
Sources & editorial notes
Sources support the stated claims and scopes. Refer to the evidence notes for uncertainty.
- New data from the Middle Jurassic of China shed light on the phylogeny and origin of the proboscis in the MesopsychidaeBMC Evolutionary Biology; Lin et al., 2016 · Accessed 2026-10-08Original full article XML/body retained and inspected, including measurement definition, female L. prochorista type, genus diagnosis, flight anatomy and comparative gymnosperm-fluid feeding. · Inspected: page
- Revision of the long-proboscid scorpionflies, Lichnomesopsyche Ren, Labandeira, and Shih, 2010Journal of Paleontology; Lian, Cai & Huang, 2021 · Accessed 2026-10-08Original full author-hosted revision inspected: three species, male/female genitalia, L. gloriae anatomy, Haifanggou Formation Middle–Upper Jurassic wording, wing-venation identification limits and genus validity. Cambridge abstract alone is not claimed as full text. · Inspected: page
- Prehistoric pollination: Scorpionfly mouthparts fit tubular channels of gymnosperm conesSmithsonian Institution, 2009 · Accessed 2026-10-08Institutional research-team text and caption inspected through indexed page text; compares mouthparts with gymnosperm pollen-drop channels. No modern courtship behavior is attributed to the extinct genus. · Inspected: page
- Scorpionflies Push Back Earliest Pollination (2 of 6)AAAS EurekAlert; original research-team image caption, 2009 · Accessed 2026-10-08Full primary media caption inspected; identifies L. gloriae, late Middle Jurassic northeastern China, long hairy mouthparts and fossil specimen CNU-M-NN2005-020-1. Caption inspection is not a claim of viewing its unavailable media pixels. · Inspected: page
- The Fossil Record of Long-Proboscid Nectarivorous InsectsEntomological Review; Khramov, Bashkuev & Lukashevich, 2020 · Accessed 2026-10-08Selected original author-uploaded full-text passages inspected: Table1 separates Chinese named species from Upper Jurassic Karatau Lichnomesopsyche sp.; Figure5 identifies PIN2997/4185 separately from family-only PIN2239/1807. The Kazakhstan genus occurrence does not change the Chinese species anchors for gallery anatomy or measured length. No claim to reading the entire88-page review. · Inspected: page
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