FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term Kolbchen ID (Ontology) FBbt:00005199 (Fly Anatomy)
Definition Club-like sensory structure found in the thoracic segments of the embryo/larva.[ FlyBase:FBrf0041814 FlyBase:FBrf0045359 ]
Comment Dambly-Chaudiere and Ghysen (1986) argue that since the Kolbchen is not black (except when viewed with phase contrast) and is more than a pit, the original name of Kolbchen (meaning 'small club') is preferable to 'pit' or 'black dot'.
Links to External Ontologies
VFB:FBbt_00005199
Annotations
Records annotated with this term OR any of its CHILD TERMS
Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN      35
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       4
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      10
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
 Kolbchen (all annotations which use CV term, excluding "NOT" statements)      37      1      1      4     15
     Kolbchen | ectopic | heat sensitive       2       --       --       --       2
     Kolbchen | embryonic stage       1       --       --       --       1
     Kolbchen | germline clone       1       --       --       --       --
Spanning Tree (Parents/Children)
Only view relationship:
external sensillum
 |__eo-type sensillum____________________
larval sensillum                         |
 |__embryonic/larval thoracic sensillum__|
                                         Kolbchen  65 rec.
                                          |__lateral Kolbchen lbd 8 rec.
                                          |   |__mesothoracic lateral Kolbchen lbd 4 rec.
                                          |   |__metathoracic lateral Kolbchen lbd 3 rec.
                                          |__mesothoracic ventral Kolbchen vbd 3 rec.
                                          |__metathoracic ventral Kolbchen vbd 2 rec.
                                          |__prothoracic dorsal Kolbchen dbd
                                          |__prothoracic ventral Kolbchen vbd 3 rec.
Spanning Tree View Settings
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Is a eo-type sensillum
embryonic/larval thoracic sensillum
Part of
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Synonyms
Secondary IDs
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VFB:FBbt_00005199