FB2026_03 , released September 17, 2026
FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term microchaeta ID (Ontology) FBbt:00005182 (Fly Anatomy)
Definition A sensillum of the adult whose external sensory structure is a hair or short thin bristle.[ FlyBase:FBrf0005804 ]
Comment Note that entomologists working in other species may call such sensilla trichoid, but Drosophila biologists typically reserve this for only the very smallest hairs. The reference for the term microchaeta among Drosophilist dates back to at least Lees and Waddington (1942).
Links to External Ontologies
VFB:FBbt_00005182
Annotations
Records annotated with this term OR any of its CHILD TERMS

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Direct annotations: records annotated with this exact term (child terms are NOT included)
Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
Insertions (FBti)PHENOTYPE_MANIFEST_IN
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes Images Insertions Constructs
 microchaeta (all annotations which use CV term, excluding "NOT" statements)
     microchaeta | absent
      --       --       --
     microchaeta | adult stage
      --       --       --
     microchaeta | adult stage | increased number
      --       --       --
     microchaeta | cell autonomous | ectopic | somatic clone
      --       --
      --
     microchaeta | cell autonomous | somatic clone
      --       --       --       --
     microchaeta | cell non-autonomous | somatic clone
      --       --       --
     microchaeta | dorsal
      --       --       --
     microchaeta | ectopic
      --       --
     microchaeta | ectopic | female | germline clone
      --       --       --       --
     microchaeta | ectopic | somatic clone
      --       --
     microchaeta | heat sensitive
      --       --       --
     microchaeta | increased number
      --       --       --
     microchaeta | increased number | heat sensitive
      --       --       --
     microchaeta | nutrition conditional
      --       --       --
     microchaeta | pharate adult stage
      --       --
      --
     microchaeta | precursor
      --       --       --
     microchaeta | somatic clone
      --       --
     microchaeta | somatic clone | increased number
      --       --       --       --
Spanning Tree (Parents/Children)
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Vocabulary search
adult sense organ
 |__adult sensillum___________
mechanosensory sensory organ  |
 |__mechanosensory chaeta_____|
chaeta                        |
 |__mechanosensory chaeta_____|
sensillum                     |
 |__adult sensillum___________|
                              microchaeta  2090 rec.
                               |__abdominal sternite bristle 94 rec.
                               |__abdominal tergite marginal bristle 10 rec.
                               |__acrostichal bristle 28 rec.
                               |__antennal segment 1 microchaeta
                               |   |__dorsal lateral bristle of antennal segment 1
                               |   |__dorsal medial bristle of antennal segment 1
                               |__antennal segment 2 microchaeta 2 rec.
                               |   |__large anterior bristle of antennal segment 2
                               |   |__posterior tooth bristle of antennal segment 2
                               |   |__small anterior bristle of antennal segment 2
                               |__frontal bristle 9 rec.
                               |__fronto-orbital bristle 2 rec.
                               |__interocellar bristle 38 rec.
                               |__interommatidial bristle 1135 rec.
                               |__mesothoracic coxal bristle on hairy island 3 rec.
                               |__mesothoracic tarsal bristle 43 rec.
                               |   |__mesothoracic tarsal bristle longitudinal row(+) 23 rec.
                               |__mesothoracic tibial apical bristle 39 rec.
                               |__mesothoracic tibial preapical bristle 8 rec.
                               |__mesothoracic trochanter edge bristle
                               |__metathoracic femoral yellow bristle
                               |__metathoracic tarsal bristle 19 rec.
                               |   |__metathoracic tarsal bristle longitudinal row(+) 8 rec.
                               |   |__metathoracic tarsal bristle transverse row 3 rec.
                               |__metathoracic tibial preapical bristle 2 rec.
                               |__metathoracic tibial transverse bristle row 5 rec.
                               |__postorbital bristle 11 rec.
                               |   |__dorsal postorbital bristle
                               |   |__ventral postorbital bristle
                               |__prothoracic coxal bristle on hairy island 4 rec.
                               |__prothoracic tarsal bristle 35 rec.
                               |   |__prothoracic metatarsal segment central bristle 1 rec.
                               |   |__prothoracic metatarsal segment transverse row bristle 4 rec.
                               |   |__prothoracic tarsal bristle longitudinal row(+) 8 rec.
                               |__prothoracic tibial apical bristle 13 rec.
                               |__prothoracic tibial preapical bristle 4 rec.
                               |__prothoracic tibial transverse row bristle 15 rec.
                               |__prothoracic trochanter edge bristle 1 rec.
                               |__subvibrissal bristle
                               |__supracervical bristle 11 rec.
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Is a mechanosensory chaeta
adult sensillum
Part of
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Synonyms
  • "hair" RELATED
    "setulae" RELATED
Secondary IDs
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VFB:FBbt_00005182